merge with upstream master

2017-12-19 15:18:35 +01:00
parent efb4547a37
commit 197db1003b
85 changed files with 2522 additions and 697 deletions
--- a/2
+++ b/2
@@ -1 +1 @@
-web: python helix/main.py
+web: gunicorn -c gunicorn_config.py --pythonpath helix main:app
--- a/README.md
+++ b/README.md
@@ -1,3 +1,6 @@
+[![CircleCI](https://circleci.com/gh/SunPower/Helix_Roof_Calculator.svg?style=svg&circle-token=aacf2ae59dae99075992ed10d1e27f119e223e75)](https://circleci.com/gh/SunPower/Helix_Roof_Calculator)
+
+
 ## Helix Calculator

 - [Staging](https://sp-helix-staging.herokuapp.com)
@@ -31,6 +34,22 @@
 | google-chrome-stable/stable,now 62.0.3202.94-1 amd64 |
 | nodejs/unknown,now 6.12.0-1nodesource1 amd64 |

+
+##### Environment Variables
+
+Set the environment variables for your specific environment. Use the `.env` file below as reference:
+
+```
+AWS_S3_BUCKET="..."
+AWS_ACCESS_KEY_ID="..."
+AWS_SECRET_ACCESS_KEY="..."
+
+SF_BASE_URL="https://test.salesforce.com"
+SFDC_ACCESS_KEY_ID="..."
+SFDC_SECRET_ACCESS_KEY="..."
+```
+
+
 ##### Set up for Develop and Testing

 - Run the docker container for the 1st time
@@ -47,7 +66,7 @@

 - Log in the docker container

-```docker exec -t -i helix /bin/bash```
+```docker exec -ti helix bash```

 - Run this commands inside the docker conatiner

@@ -367,3 +386,9 @@ docker exec -it helixroofcalculator_helix_1 invoke db_migrate
 ```

 Debugging is possible directly from PyCharm, all code changes are transparent between host and container.
+
+
+## Database schema
+
+
+![Database Schema](documentation/db_schema.png)
--- a/circle.yml
+++ b/circle.yml
@@ -1,51 +0,0 @@
-version: 2
-jobs:
-  build:
-    docker:
-      - image: ivannnn/heroku_cedar14:2.0
-        environment:
-          PGUSER: pivotal
-          PGPASSWORD: password
-          PASSWORD: password
-    environment:
-      PATH: /usr/local/rvm/gems/ruby-2.3.4/bin:/usr/local/rvm/gems/ruby-2.3.4@global/bin:/usr/local/rvm/rubies/ruby-2.3.4/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/rvm/bin
-    steps:
-      - checkout
-      - run:
-          name: Set up and Run tests
-          command: |
-            source /etc/profile.d/rvm.sh
-            rvm use 2.3.4
-            /etc/init.d/postgresql start
-            python3.4 -m venv env
-            source env/bin/activate
-            pip install invoke
-            invoke install
-            npm install
-            invoke db_migrate
-            invoke test_ci
-      - deploy:
-          name: staging
-          command: |
-            invoke update_heroku_version staging
-            "[[ ! -s \"$(git rev-parse --git-dir)/shallow\" ]] || git fetch --unshallow"
-            git push -f git@heroku.com:sp-helix-staging.git $CIRCLE_SHA1:refs/heads/master
-            heroku run --app sp-helix-staging invoke db_migrate
-            rake ci:deliver
-          name: preprod
-          command: |
-            invoke update_heroku_version preprod
-            "[[ ! -s \"$(git rev-parse --git-dir)/shallow\" ]] || git fetch --unshallow"
-            git push -f git@heroku.com:sp-helix-preprod.git $CIRCLE_SHA1:refs/heads/master
-            heroku run --app sp-helix-preprod invoke db_migrate
-            rake ci:deliver
-          name: production
-          commands: |
-            invoke update_heroku_version production
-            "[[ ! -s \"$(git rev-parse --git-dir)/shallow\" ]] || git fetch --unshallow"
-            git push -f git@heroku.com:sp-helix-production.git $CIRCLE_SHA1:refs/heads/master
-            heroku run --app sp-helix-production invoke db_migrate
-            rake ci:deliver
-    notify:
-      webhooks:
-        - url: http://pulse.pivotallabs.com/projects/03ba990f-b8f5-4508-b4c1-19038b2cb791/status
--- a/documentation/classes.calculators-diagram.png
+++ b/documentation/classes.calculators-diagram.png
--- a/documentation/classes.constants-diagram.png
+++ b/documentation/classes.constants-diagram.png
--- a/documentation/classes.forms-diagram.png
+++ b/documentation/classes.forms-diagram.png
--- a/documentation/classes.models-diagram.png
+++ b/documentation/classes.models-diagram.png
--- a/documentation/classes.validators-diagram.png
+++ b/documentation/classes.validators-diagram.png
--- a/documentation/db_schema.png
+++ b/documentation/db_schema.png
--- a/dump.rdb
+++ b/dump.rdb
--- a/gunicorn_config.py
+++ b/gunicorn_config.py
@@ -0,0 +1,13 @@
+"""gunicorn WSGI server configuration."""
+import multiprocessing
+import os
+
+
+bind = '0.0.0.0:' + os.getenv('PORT', '5000')
+max_requests = 1000
+worker_class = 'meinheld.gmeinheld.MeinheldWorker'
+workers = multiprocessing.cpu_count()
+timeout = os.getenv('TIMEOUT', 120)
+graceful_timeout = os.getenv('TIMEOUT', 120)
+keepalive = 5
+daemon = False
--- a/helix/Services/dxf_helper.py
+++ b/helix/Services/dxf_helper.py
@@ -234,24 +234,43 @@ class DXFHelper(object):

            node_store.add_node(node)

+        # Optimization: avoid creating thousands of replicated objects
+        graph_directions_cache = {}
+        for x in (0, 1, -1):
+            for y in (0, 1, -1):
+                if x == y == 0:
+                    continue
+                graph_directions_cache[(x, y)] = GraphDirection((x, y))
+
        for node in nodes:
            if len(node.neighboring_nodes()) == 8:
                continue
+
+            rotation = math.radians(node.coordinate.rotation)
+            # Optimization: Avoid replicate calculations thousands of times
+            x_spacing_cos_rotation = (node.x_spacing * math.cos(rotation))
+            y_spacing_sin_rotation = (node.y_spacing * math.sin(rotation))
+            x_spacing_sin_rotation = (node.x_spacing * math.sin(rotation))
+            y_spacing_cos_rotation = (node.y_spacing * math.cos(rotation))
+
            for x in (0, 1, -1):
                for y in (0, 1, -1):
                    if x == y == 0:
                        continue
-                    rotation = math.radians(node.coordinate.rotation)
-                    x_spacing = (x * node.x_spacing * math.cos(rotation)) - (y * node.y_spacing * math.sin(rotation))
-                    y_spacing = (x * node.x_spacing * math.sin(rotation)) + (y * node.y_spacing * math.cos(rotation))
+                    x_spacing = (x * x_spacing_cos_rotation) - (y * y_spacing_sin_rotation)
+                    y_spacing = (x * x_spacing_sin_rotation) + (y * y_spacing_cos_rotation)

                    coordinate = Coordinate(node.coordinate.x + x_spacing, node.coordinate.y + y_spacing, node.coordinate.rotation)
                    if coordinate.x < 0 or coordinate.y < 0:
                        continue
-                    direction = GraphDirection((x, y))
+
+                    # Optimization for `direction = GraphDirection((x, y))`
+                    direction = graph_directions_cache[(x, y)]
                    if node.has_existing_neighbor(direction):
                        continue

+                    # FIXME: This is the bottleneck of the loop
+                    # Calling this ~10000 times needs ~20 seconds
                    neighbor = node_store.find_coordinate(coordinate)
                    if neighbor:
                        node.add_neighbor(neighbor, direction)
@@ -417,7 +436,7 @@ class DXFHelper(object):
    def __compute_segment_direction(p1, p2):
        """
        Computes direction of a segment. Points taken from building outline are assumed to be in counterclockwise order.
-        
+
        :param p1: first point
        :param p2: second point
        :return: tuple representing orientation ('north', 'south', 'east', 'west') and variation in degrees from ideally
@@ -438,7 +457,7 @@ class DXFHelper(object):
    def compute_corner_directions(vertex, prev, next, angle_correction):
        """
        Determines if point is located in north/east corner
-        
+
        :param vertex: point located in the corner
        :param prev: point previous to vertex, assuming counterclockwise order
        :param next: point next to vertex, assuming counterclockwise order
@@ -510,7 +529,7 @@ class DXFHelper(object):
    @staticmethod
    def __generate_wind_zone__(buildings, scaling_factor, points_callback, panel_orientation):
        """
-        Important: polygons representing buildings are expected to have points in counterclockwise order 
+        Important: polygons representing buildings are expected to have points in counterclockwise order
        """

        wind_zones = []
--- a/helix/Services/dxf_service.py
+++ b/helix/Services/dxf_service.py
@@ -2,9 +2,6 @@ import io

 import dxfgrabber

-from helix.constants.file_validation_error import FileValidationMessage
-from helix.models.dxf.dxf_error import OldDxfFormatException
-

 class DXFService(object):
    """
@@ -51,6 +48,7 @@ class DXFService(object):


        panels = dxf_helper.generate_panels(modules, translated_modules)
+        # FIXME: Building a graph with many entities is very slow
        node_graph = dxf_helper.build_node_graph(panels, module_constants.panel_spacing)
        subarrays = dxf_helper.detect_subarrays(node_graph, panels)
        for subarray in subarrays:
--- a/helix/Services/s3_helper.py
+++ b/helix/Services/s3_helper.py
@@ -0,0 +1,26 @@
+import boto3
+import os
+import uuid
+
+
+def s3_upload(bytes_or_file_like, filename=None, file_extension=None):
+    '''
+    @bytes_or_file_like: bytes(), open('filepath') or io.StringIO('')
+    '''
+    if filename is None:
+        filename = uuid.uuid4().hex
+        if file_extension:
+            filename += file_extension
+
+    s3 = boto3.resource('s3',
+        aws_access_key_id=os.getenv('AWS_ACCESS_KEY_ID'),
+        aws_secret_access_key=os.getenv('AWS_SECRET_ACCESS_KEY'))
+
+    # Default: test environment
+    bucket_name = os.getenv('AWS_S3_BUCKET', 'sunpower-test-dgplatform-spectrum')
+
+    # Assuming bucket already exists
+    s3.Bucket(bucket_name).put_object(Key=filename, Body=bytes_or_file_like.read(), ACL='public-read')
+    file_url = 'https://s3.amazonaws.com/{}/{}'.format(bucket_name, filename)
+    print('Uploaded filename {} to S3: {}'.format(filename, file_url))
+    return file_url
--- a/helix/api/api.py
+++ b/helix/api/api.py
@@ -5,7 +5,6 @@ from helix.presenters.panel_presenter import ProjectPresenter
 from helix.session_manager import SessionManager
 from helix.constants import redis_constant, sql_constant
 from helix.seismic_validator_user_values import SeismicValidatorUserValues
-from helix.validators.file_validator import FileValidator
 from helix.validators.seismic_anchor_validator import SeismicAnchorValidator

 api = Blueprint('api', __name__, template_folder='templates')
--- a/helix/calculators/bom_calculator.py
+++ b/helix/calculators/bom_calculator.py
@@ -50,7 +50,7 @@ class BomCalculator(object):
        row_count = sum(subarray.row_count for subarray in self.subarrays)
        column_count = sum(subarray.column_count for subarray in self.subarrays)
        parts_list = MechanicalBomCalculator(self.values, self.panels, self.subarrays).mechanical_bom()
-        ebom_parts_list = EbomCalculator(self.values, ceil(row_count), ceil(column_count), parts_list.get(module)).compute_ebom()
+        ebom_parts_list = EbomCalculator(self.values, ceil(row_count), ceil(column_count), parts_list.get(module), self.subarrays).compute_ebom()

        add_parts_to_list(parts_list, ebom_parts_list)

--- a/helix/calculators/calculator.py
+++ b/helix/calculators/calculator.py
@@ -1,4 +1,3 @@
-from math import ceil, floor
 import copy
 from helix.Repositories.graph_repository import GraphRepository
 from helix.calculators.ballast_calculator import BallastCalculator
--- a/helix/calculators/ebom_calculator.py
+++ b/helix/calculators/ebom_calculator.py
@@ -6,15 +6,15 @@ from helix.constants.ebom_parts import *
 from helix.constants.parts import wire_clip_large, cable_support, cable_support_lid, channel_nut, sunshade
 from helix.constants.system_type import SystemType
 from helix.constants.inverter_brand import InverterBrand
-from helix.forms.ebom_form import InverterBrandForm


 class EbomCalculator(object):
-    def __init__(self, user_values, row_count, column_count, modules_count = None):
+    def __init__(self, user_values, row_count, column_count, modules_count = None, panels = None):
        self.values = user_values
        self.row_count = row_count
        self.column_count = column_count
        self.modules_count = modules_count
+        self.panels = panels

    def resolve_power_monitor_type(self):
        module_type = self.values.module_type()
@@ -30,6 +30,14 @@ class EbomCalculator(object):
        else:
            return monitor_controller_240_v

+    def resolve_is_delta(self):
+      if len(self.values.inverter_brands()) > 0:
+        return self.values.inverter_brands()[0]['inverter_brand_id'] == InverterBrand.DELTA.value
+      if len(self.values.standalone_inverters()) > 0:
+        return self.values.standalone_inverters()[0]['model'].get_type == InverterBrand.DELTA.label
+      # can't determine without data
+      return False
+
    def compute_ebom(self):
        part_list = {}

@@ -38,25 +46,14 @@ class EbomCalculator(object):
        monitors = self.values.power_monitors()
        module_type = self.values.module_type()
        system_type = self.values.system_type()
-    
-        is_delta=None
-        try:
-            is_delta=(self.values.inverter_brands()[0]['inverter_brand_id']==InverterBrand.DELTA.value)
-        except IndexError :
-            #Some tests are calculating bom without providing inverter brand so inverter_brands is empty
-            #for those tests, inverter brand is irrelevant
-            is_delta=False
-            
+
+        is_delta = self.resolve_is_delta()
+
        inverter_count = 0
        total_ac_run_length = 0
        panel_board_counts = [0, 0]
        proper_monitor_controller = self.resolve_power_monitor_type()

-        try:
-            is_delta = (self.values.inverter_brands()[0]['inverter_brand_id']==InverterBrand.DELTA.value)
-        except IndexError:
-            is_delta = False
-
        for power_station in power_stations:
            power_station_count = power_station['power_station_quantity']
            total_ac_run_length += power_station['ac_run_length']
@@ -94,12 +91,17 @@ class EbomCalculator(object):
            if (is_delta):
                add_parts_to_list(part_list, {ethernet_plug: 2},1)

-        add_parts_to_list(part_list, {wire_clip_large: inverter_count}, self.row_count)
+        if is_delta:
+            clips_amount = inverter_count * self.row_count * 1.15
+            clips_rounded = int(ceil(clips_amount / 10.0)) * 10
+            add_parts_to_list(part_list, {wire_clip_large: clips_rounded})
+        else:
+            add_parts_to_list(part_list, {wire_clip_large: inverter_count}, self.row_count)

        add_parts_to_list(part_list, {stump: 1}, ceil(total_ac_run_length / 4.0))
-        cable_supports = self.calculate_cable_supports(panel_board_counts, len(standalone_inverters))
+        cable_supports = self.calculate_cable_supports(panel_board_counts, len(standalone_inverters), is_delta)
        add_parts_to_list(part_list, {cable_support: 1, cable_support_lid: 1}, cable_supports)
-        add_parts_to_list(part_list, {rear_skirt: -1}, ceil(cable_supports*.38))
+        add_parts_to_list(part_list, {rear_skirt_1_1: -1}, ceil(cable_supports*.38))

        dependent_part_list = {}

@@ -121,21 +123,37 @@ class EbomCalculator(object):
        if inverter['dc_switch']:
            add_parts_to_list(part_list, dc_switch_parts, multiplier)

-    def calculate_cable_supports(self, panel_board_counts, standalone_inverter_count):
-        if sum(panel_board_counts) == 0:
+    def calculate_cable_supports(self, panel_board_counts, standalone_inverter_count, is_delta):
+        # There are some tests that don't have panels
+        if is_delta and self.panels is None:
            return 0
-
-        if self.values.system_type() == SystemType.dualTilt:
-            dimension1 = self.column_count
-            dimension2 = self.row_count
+        if is_delta:
+            panels_count = len(self.panels)
+            if panels_count == 0:
+                return 0
+            if self.values.system_type() == SystemType.dualTilt:
+                Avg_Columns = self.column_count / panels_count
+                Col2Row_Ratio = self.column_count / self.row_count
+                Col2Row_Ratio = 1 if Col2Row_Ratio < 1 else Col2Row_Ratio
+                return ceil(standalone_inverter_count * 1.25 * Avg_Columns * Col2Row_Ratio + Avg_Columns)
+            else:
+                Avg_Rows = self.row_count / panels_count
+                Row2Col_Ratio = self.row_count / self.column_count
+                Row2Col_Ratio = 1 if Row2Col_Ratio < 1 else Row2Col_Ratio
+                return ceil(standalone_inverter_count * 1.25 * Avg_Rows * Row2Col_Ratio + Avg_Rows)
        else:
-            dimension1 = self.row_count
-            dimension2 = self.column_count
-
-        result = (standalone_inverter_count + panel_board_counts[0] + (2 * panel_board_counts[1])) / sum(panel_board_counts)
-        result *= dimension1 * max(dimension1 / dimension2, 1)
-        result += dimension1
-        return ceil(result)
+            if sum(panel_board_counts) == 0:
+                return 0
+            if self.values.system_type() == SystemType.dualTilt:
+                dimension1 = self.column_count
+                dimension2 = self.row_count
+            else:
+                dimension1 = self.row_count
+                dimension2 = self.column_count
+            result = (standalone_inverter_count + panel_board_counts[0] + (2 * panel_board_counts[1])) / sum(panel_board_counts)
+            result *= dimension1 * max(dimension1 / dimension2, 1)
+            result += dimension1
+            return ceil(result)

    def get_standalone_inverters(self, power_station):
        standalone_inverters = self.values.standalone_inverters()
--- a/helix/calculators/mechanical_bom_calculator.py
+++ b/helix/calculators/mechanical_bom_calculator.py
@@ -5,7 +5,7 @@ from helix.calculators.bom_helper import add_parts_to_list, apply_fudge_factors,
 from helix.calculators.subarray_helper import extract_subarray
 from helix.constants.module_type import ModuleType
 from helix.constants.panel_type import PanelType
-from helix.constants.parts import link_tray, cross_tray, ballast, cross_tray_1_1, leading_tray
+from helix.constants.parts import link_tray, cross_tray, ballast, cross_tray_1_1
 from helix.constants.system_type import SystemType


--- a/helix/calculators/seismic_calculator.py
+++ b/helix/calculators/seismic_calculator.py
@@ -1,6 +1,5 @@
 from math import ceil, floor

-from helix.calculators.subarray_graph import SubarrayGraph
 from helix.calculators.subarray_helper import extract_subarray

 from helix.constants.global_constants import minimum_racking_capacity
--- a/helix/calculators/subarray_graph.py
+++ b/helix/calculators/subarray_graph.py
@@ -1,4 +1,3 @@
-import copy
 from enum import Enum

 from helix.constants.system_type import SystemType
--- a/helix/constants/inverter_type.py
+++ b/helix/constants/inverter_type.py
@@ -7,6 +7,10 @@ class InverterTypeSMA(IntEnum):
    MODEL_20KW = 6
    MODEL_24KW = 8

+    @property
+    def get_type(self):
+        return "SMA"
+
    @property
    def default_string(self):
        return {
@@ -49,6 +53,10 @@ class InverterTypeDelta(IntEnum):
    MODEL_60KW = 11
    MODEL_80KW = 12

+    @property
+    def get_type(self):
+        return "Delta"
+
    @property
    def label(self):
        return {
--- a/helix/constants/module_type_constants/dual_tilt_128_cell_constants.py
+++ b/helix/constants/module_type_constants/dual_tilt_128_cell_constants.py
@@ -60,14 +60,37 @@ class DualTilt128CellConstants(object):
            return 1, 1

    def base_weight(self, panel_type, tray_count):
-        if panel_type == PanelType.Corner:
-            return [108.66, 110.96, 112.11, 116.44, 119.62, 122.80, 125.98][tray_count]
-        elif panel_type == PanelType.NorthSouth:
-            return [107.58, 109.88, 111.03,  114.21, 117.39, 120.57, 123.75][tray_count]
-        elif panel_type == PanelType.EastWest:
-            return [103.19, 105.49, 105.49, 108.67, 111.85, 115.03, 118.21][tray_count]
-        else:
-            return [102.11, 104.41, 104.41, 107.59, 110.77, 113.95, 117.13][tray_count]
+        values_per_panel_type = {
+            PanelType.Corner:       [122.70,
+                                    124.55,
+                                    126.40,
+                                    129.55,
+                                    132.71,
+                                    135.86,
+                                    139.01][tray_count],
+            PanelType.NorthSouth:   [121.63,
+                                    123.48,
+                                    125.33,
+                                    128.48,
+                                    131.64,
+                                    134.79,
+                                    137.94][tray_count],
+            PanelType.EastWest:     [118.28,
+                                    120.13,
+                                    121.99,
+                                    125.14,
+                                    128.29,
+                                    131.45,
+                                    134.60][tray_count],
+            PanelType.Middle:       [117.21,
+                                    119.06,
+                                    120.92,
+                                    124.07,
+                                    127.22,
+                                    130.38,
+                                    133.53][tray_count],   
+        }
+        return values_per_panel_type.get(panel_type)

    def link_tray_thresholds(self, panel_type):
        if panel_type == PanelType.Corner or panel_type == PanelType.NorthSouth:
--- a/helix/constants/module_type_constants/dual_tilt_96_cell_constants.py
+++ b/helix/constants/module_type_constants/dual_tilt_96_cell_constants.py
@@ -60,23 +60,38 @@ class DualTilt96CellConstants(object):
            return 1, 1

    def base_weight(self, panel_type, tray_count):
-        if panel_type == PanelType.Corner or panel_type == PanelType.NorthSouth:
-            return [92.58,
-                    94.31,
-                    96.03,
-                    98.33,
-                    100.63,
-                    102.93,
-                    105.23][tray_count]
-        else:
-            return [87.11,
-                    88.84,
-                    89.41,
-                    91.71,
-                    94.01,
-                    96.31,
-                    98.61][tray_count]
-
+        values_per_panel_type = {
+            PanelType.Corner:       [92.41, 
+                                    94.26,
+                                    96.12,
+                                    98.54,
+                                    100.97,
+                                    103.39,
+                                    105.82][tray_count],
+            PanelType.NorthSouth:   [91.63,
+                                    93.48,
+                                    95.33,
+                                    97.76,
+                                    100.18,
+                                    102.61,
+                                    105.03][tray_count],
+            PanelType.EastWest:     [88.00,
+                                    89.85,
+                                    91.70,
+                                    94.13,
+                                    96.55,
+                                    98.98,
+                                    101.40][tray_count],
+            PanelType.Middle:       [87.21,
+                                    89.06,
+                                    90.92,
+                                    93.34,
+                                    95.77,
+                                    98.19,
+                                    100.62][tray_count],   
+        }
+        return values_per_panel_type.get(panel_type)
+    
    def link_tray_thresholds(self, panel_type):
        if panel_type == PanelType.Corner or panel_type == PanelType.NorthSouth:
            return [7.5, 10, 15]
--- a/helix/constants/module_type_constants/dual_tilt_pseries_constants.py
+++ b/helix/constants/module_type_constants/dual_tilt_pseries_constants.py
@@ -60,14 +60,37 @@ class DualTiltPSeriesConstants(object):
            return 1, 1

    def base_weight(self, panel_type, tray_count):
-        if panel_type == PanelType.Corner:
-            return [103.66, 105.96, 107.11, 111.44, 114.62, 117.80, 120.98][tray_count]
-        elif panel_type == PanelType.NorthSouth:
-            return [102.58, 104.88, 106.03, 109.21, 112.39, 115.57, 118.75][tray_count]
-        elif panel_type == PanelType.EastWest:
-            return [98.19, 100.49, 100.49, 103.67, 106.85, 110.03, 113.21][tray_count]
-        else:
-            return [97.11, 99.41, 99.41, 102.59, 105.77, 108.95, 112.13][tray_count]
+        values_per_panel_type = {
+            PanelType.Corner:       [116.70,
+                                    118.55,
+                                    120.40,
+                                    123.55,
+                                    126.71,
+                                    129.86,
+                                    133.01][tray_count],
+            PanelType.NorthSouth:   [115.63,
+                                    117.48,
+                                    119.33,
+                                    122.48,
+                                    125.64,
+                                    128.79,
+                                    131.94][tray_count],
+            PanelType.EastWest:     [112.28,
+                                    114.13,
+                                    115.99,
+                                    119.14,
+                                    122.29,
+                                    125.45,
+                                    128.60][tray_count],
+            PanelType.Middle:       [111.21,
+                                    113.06,
+                                    114.92,
+                                    118.07,
+                                    121.22,
+                                    124.38,
+                                    127.53][tray_count],   
+        }
+        return values_per_panel_type.get(panel_type)

    def link_tray_thresholds(self, panel_type):
        if panel_type == PanelType.Corner or panel_type == PanelType.NorthSouth:
--- a/helix/constants/module_type_constants/single_tilt_128_cell_constants.py
+++ b/helix/constants/module_type_constants/single_tilt_128_cell_constants.py
@@ -131,14 +131,10 @@ class SingleTilt128CellConstants(object):
            return 1, 1

    def base_weight(self, panel_type, tray_count):
-        if panel_type == PanelType.Corner:
-            return [71.91, 71.91, 75.09, 78.27][tray_count]
-        elif panel_type == PanelType.NorthSouth:
-            return [65.8, 65.8, 68.98, 72.16][tray_count]
-        elif panel_type == PanelType.EastWest:
-            return [69.75, 72.05, 75.23, 78.41][tray_count]
-        else:
-            return [65.08, 67.38, 70.56, 73.74][tray_count]
+        return [[68.02, 68.02, 71.17, 74.32],
+                [65.05, 65.05, 68.20, 71.35],
+                [65.87, 67.73, 70.88, 74.03],
+                [63.26, 65.11, 68.26, 71.41]][panel_type.index()][tray_count]

    def link_tray_thresholds(self, panel_type):
        return [[0, 13.0],
--- a/helix/constants/module_type_constants/single_tilt_96_cell_constants.py
+++ b/helix/constants/module_type_constants/single_tilt_96_cell_constants.py
@@ -130,10 +130,10 @@ class SingleTilt96CellConstants(object):
            return 1, 1

    def base_weight(self, panel_type, tray_count):
-        return [[54.50, 54.50, 56.80, 59.10],
-                [49.47, 49.47, 51.77, 54.07],
-                [53.42, 55.72, 58.02, 60.32],
-                [48.75, 51.05, 53.35, 55.65]][panel_type.index()][tray_count]
+        return [[51.10, 51.10, 53.52, 55.95],
+                [48.13, 48.13, 50.55, 52.98],
+                [49.24, 51.09, 53.52, 55.94],
+                [48.33, 50.19, 52.61, 55.04]][panel_type.index()][tray_count]

    def link_tray_thresholds(self, panel_type):
        return [[0, 12.0],
--- a/helix/constants/module_type_constants/single_tilt_pseries_constants.py
+++ b/helix/constants/module_type_constants/single_tilt_pseries_constants.py
@@ -130,14 +130,10 @@ class SingleTiltPSeriesConstants(object):
            return 1, 1

    def base_weight(self, panel_type, tray_count):
-        if panel_type == PanelType.Corner:
-            return [66.91, 66.91, 70.09, 73.27][tray_count]
-        elif panel_type == PanelType.NorthSouth:
-            return [60.8, 60.8, 63.98, 67.16][tray_count]
-        elif panel_type == PanelType.EastWest:
-            return [64.75, 67.05, 70.23, 73.41][tray_count]
-        else:
-            return [60.08, 62.38, 65.56, 68.74][tray_count]
+        return [[65.02, 65.02, 68.17, 71.32],
+                [62.05, 62.05, 65.20, 68.35],
+                [62.87, 64.73, 67.88, 71.03],
+                [60.26, 62.11, 65.26, 68.41]][panel_type.index()][tray_count]

    def link_tray_thresholds(self, panel_type):
        return [[0, 13.0],
--- a/helix/constants/single_tilt_parts.py
+++ b/helix/constants/single_tilt_parts.py
@@ -55,7 +55,7 @@ class SingleTiltParts(object):

    def module(self, module_type):
        if module_type == ModuleType.Cell96:
-            rear_skirt_parts = rear_skirt
+            rear_skirt_parts = rear_skirt_1_1
            spoiler_parts = spoiler
        else:
            rear_skirt_parts = rear_skirt_1_1
--- a/helix/helpers/camel_case.py
+++ b/helix/helpers/camel_case.py
@@ -0,0 +1,16 @@
+import re
+
+
+def convert_camel_case_to_snake_case(name):
+    s1 = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', name)
+    return re.sub('([a-z0-9])([A-Z])', r'\1_\2', s1).lower()
+
+
+def convert_dict_keys_to_snake_case(a_dict):
+    new_dict = {}
+    for old_key in a_dict.keys():
+        new_key = convert_camel_case_to_snake_case(old_key)
+        new_dict[new_key] = a_dict[old_key]
+    return new_dict
+
+
--- a/helix/helpers/nodequadtree.py
+++ b/helix/helpers/nodequadtree.py
@@ -130,8 +130,14 @@ class NodeQuadTree():
                self.nodeList = toKeep

    # Return a list of all possible nodes that can be near this point
-    def retrieve(self, nearPoint):
-        retNodes = list(self.nodeList)
+    # Optimization `only_quads_related = True`:
+    # Avoid replicate a large self.nodeList. Get only the other elements.
+    # Call this in complement of `self.nodeList`
+    def retrieve(self, nearPoint, only_quads_related=False):
+        if only_quads_related:
+            retNodes = []
+        else:
+            retNodes = self.nodeList[:] # = list(self.nodeList)

        if self.quads[0] is not None:
            index = self.getIndex(nearPoint)
--- a/helix/javascript/array_summary/auto_upload.js
+++ b/helix/javascript/array_summary/auto_upload.js
@@ -1,22 +1,26 @@
 let AutoUpload = () => {
  $("#file_upload").change((e) => {
-	  var ten_megabyte_max_upload = 10000000;
-	  $("#error_container_txt").empty();
-	  if(e.currentTarget.files[0].size < ten_megabyte_max_upload){
-		  e.currentTarget.form.submit();
-	  }else{
-		  $("#error_container_txt").append('<span class="error_message centered_error" id="error_message_txt">The system configuration you have uploaded is too large. Try splitting your design into two separate text files and run the tool twice.</span>');
-	  }
+      var ten_megabyte_max_upload = 10000000;
+      $("#error_container_txt").empty();
+      if (e.currentTarget.files[0].size < ten_megabyte_max_upload) {
+        // $('#spinner-panel').show();
+        $('#spinner-panel').css('width', '100%'); // Workaround for Safari issue
+  		  e.currentTarget.form.submit();
+  	  } else {
+  		  $("#error_container_txt").append('<span class="error_message centered_error" id="error_message_txt">The system configuration you have uploaded is too large. Try splitting your design into two separate text files and run the tool twice.</span>');
+  	  }
  });

  $("#dxf_upload").change((e) => {
-	  var ten_megabyte_max_upload = 10000000;
-	  $("#error_container_dxf").empty();
-	  if(e.currentTarget.files[0].size < ten_megabyte_max_upload){
-		  e.currentTarget.form.submit();
-	  }else{
-		  $("#error_container_dxf").append('<span class="error_message centered_error" id="error_message_dxf">The system configuration you have uploaded is too large. Try splitting your design into two separate text files and run the tool twice.</span>');
-	  }
+      var ten_megabyte_max_upload = 10000000;
+      $("#error_container_dxf").empty();
+      if (e.currentTarget.files[0].size < ten_megabyte_max_upload) {
+        // $('#spinner-panel').show();
+        $('#spinner-panel').css('width', '100%'); // Workaround for Safari issue
+  		  e.currentTarget.form.submit();
+  	  } else {
+  		  $("#error_container_dxf").append('<span class="error_message centered_error" id="error_message_dxf">The system configuration you have uploaded is too large. Try splitting your design into two separate text files and run the tool twice.</span>');
+  	  }
  });
 };

--- a/helix/javascript/array_summary/index.js
+++ b/helix/javascript/array_summary/index.js
@@ -8,13 +8,16 @@ import AutoUpload from './auto_upload';

 $(document).ready(function () {
  AutoUpload();
-  let subarrayDisplay = new SubarrayDisplay();
-  subarrayDisplay.init($('#current_anchors'), $('#needed_anchors'), $('#subarray_weight'), panel_data);
-  let arrayVisualization = new ArrayVisualization(panel_data, is_dual_tilt, subarrayDisplay, buildings_coordinates);
-  arrayVisualization.init();
-  new ZoomControl(arrayVisualization).init($('#zoom_control'));
-  new OverlayControl(arrayVisualization).init($('#overlay_control'), $('#legend_container'));
-  new SeismicControl(arrayVisualization, subarrayDisplay).init($('.seismic_anchor_control'), $("#seismic_save"));
-  window.arrayVisualization = arrayVisualization;
+
+  if (is_csv_available) {
+      let subarrayDisplay = new SubarrayDisplay();
+      subarrayDisplay.init($('#current_anchors'), $('#needed_anchors'), $('#subarray_weight'), panel_data);
+      let arrayVisualization = new ArrayVisualization(panel_data, is_dual_tilt, subarrayDisplay, buildings_coordinates);
+      arrayVisualization.init();
+      new ZoomControl(arrayVisualization).init($('#zoom_control'));
+      new OverlayControl(arrayVisualization).init($('#overlay_control'), $('#legend_container'));
+      new SeismicControl(arrayVisualization, subarrayDisplay).init($('.seismic_anchor_control'), $("#seismic_save"));
+      window.arrayVisualization = arrayVisualization;
+  }

 });
--- a/helix/json_builder.py
+++ b/helix/json_builder.py
@@ -0,0 +1,16 @@
+try:
+    import ujson as json
+except ImportError:
+    import json
+
+
+class JsonBuilder:
+    def build_bom_output(self, rows):
+        data = []
+        headers = ['Part #', 'Description', 'Total']
+        for row in rows:
+            d = {}
+            for i, value in enumerate(row):
+                d[headers[i]] = value
+            data.append(d)
+        return json.dumps(data)
--- a/helix/main.py
+++ b/helix/main.py
@@ -6,8 +6,10 @@ from flask import Flask, request, make_response, session, render_template, \
    redirect, url_for
 from flask import got_request_exception
 from flask.ext import assets
+from flask_oauthlib.client import OAuth
 from webassets.filter import get_filter

+from helix.sales_force import tasks as sf_tasks
 from helix.Services.doc_gen_service import DocGenService
 from helix.Services.dxf_helper import DXFHelper
 from helix.Services.dxf_service import DXFService
@@ -34,6 +36,20 @@ app.register_blueprint(api, url_prefix='/api')
 app.secret_key = os.getenv('SECRET_KEY', 'verysecretkey')
 app.config['PROFILE'] = True

+
+# Sales Force integrations
+oauth = OAuth()
+SF_BASE_URL = os.getenv('SFDC_BASE_URL', 'https://test.salesforce.com')
+sales_force = oauth.remote_app('sales_force',
+    consumer_key=os.getenv('SFDC_ACCESS_KEY_ID'),
+    consumer_secret=os.getenv('SFDC_SECRET_ACCESS_KEY'),
+    base_url=SF_BASE_URL,
+    request_token_url=None, # OAuth 2
+    access_token_method='POST', # Sales Force requirement
+    access_token_url=SF_BASE_URL + '/services/oauth2/token',
+    authorize_url=SF_BASE_URL + '/services/oauth2/authorize',
+)
+
 assets_env = assets.Environment(app)
 assets_env.init_app(app)
 assets_env.load_path = [
@@ -67,6 +83,10 @@ def init_rollbar():
    got_request_exception.connect(rollbar.contrib.flask.report_exception, app)


+def is_sfdc_session():
+    return 'SFID' in session
+
+
@app.route("/")
 def index():
    return redirect(url_for('site_characterization'))
@@ -109,6 +129,9 @@ def test_dxf():
 # wizard steps
@app.route("/site_characterization/", methods=['GET', 'POST'])
 def site_characterization():
+    if is_sfdc_session():
+        return redirect('/summary/')
+
    db_session = sql_constant.sql_session_maker()
    session_manager = SessionManager(session, redis_constant.redis_store, db_session)
    site_info_form = InputForm()
@@ -136,6 +159,7 @@ def summary():
    context['current_step'] = 2

    if context['site_data_available']:
+        context['project_name'] = session_manager.site.project_name
        user_values = session_manager.user_values()
        calculator = Calculator(user_values, calculate_panel_data=False)
        context['wind_zones'] = user_values.system_type().system_constants().wind_zones
@@ -153,6 +177,9 @@ def summary():
    else:
        context['no_proceed'] = True

+    if is_sfdc_session():
+        context['hide_back'] = True
+
    db_session.close()
    return render_template('site_summary.html.jinja', context=context)

@@ -199,6 +226,7 @@ def array_summary():
            else:
                try:
                    module_constants = user_values.module_system_constants()
+                    # FIXME: parsing a file with many entities is very slow
                    dxf_data = DXFService().parse(file_contents,
                                                  module_constants,
                                                  user_values.system_type(),
@@ -428,6 +456,70 @@ def helix_documentation():
    return render_template('helix_documentation.jinja', context=context)


+# Sales Force Integration
+@app.route('/sales_force_login')
+def sales_force_login():
+    # To test it locally: https://localhost:8443/sales_force_login?SFID=a3cL00000004QsQIAU
+    sfid = request.args.get('SFID')
+    if sfid:
+        session.clear()
+        session['SFID'] = sfid
+        return sales_force.authorize(callback=url_for('sales_force_authorized', _external=True, SFID=sfid), SFID=sfid)
+    else:
+        return redirect('/')
+
+
+@app.route('/sales_force_authorized')
+def sales_force_authorized():
+    next_url = url_for('summary')
+
+    resp = sales_force.authorized_response()
+    if resp is None:
+        print('Unable to authenticate to SFDC.')
+        return redirect(next_url)
+
+    print('New Sales Force - OAuth2 login')
+    db_session = sql_constant.sql_session_maker()
+    session_manager = SessionManager(session, redis_constant.redis_store, db_session)
+    session['sales_force_token'] = resp['access_token']
+
+    data = sf_tasks.get_site_characterization_from_sales_force(session, resp['instance_url'])
+    if data:
+        session_manager.save_form_submission(data)
+        return redirect(next_url)
+    else:
+        return sales_force_logout()
+
+
+# FIXME
+from flask import jsonify
+@app.route("/export-sfdc")
+def export_sfdc():
+    if not is_sfdc_session():
+        return redirect('/')
+    db_session = sql_constant.sql_session_maker()
+    session_manager = SessionManager(session, redis_constant.redis_store, db_session)
+    session_id = session_manager.session['id']
+    data = sf_tasks.export_to_sfdc(session_id)
+    db_session.close()
+    return jsonify(data)
+    # return redirect('/download')
+
+
+@sales_force.tokengetter
+def get_sales_force_token(token=None):
+    return session.get('sales_force_token')
+
+
+@app.route('/sales_force_logout')
+def sales_force_logout():
+    session.pop('SFID', None)
+    session.pop('sales_force_token', None)
+    session.clear()
+    return redirect('/')
+# End of Sales Force Integration
+
+
@app.template_filter('format_number')
 def format_number(number):
    return "{:,g}".format(number)
@@ -457,8 +549,13 @@ def enum():

 def main():
    host = '0.0.0.0'
-    port = int(os.getenv('PORT', 5000))
-    app.run(host=host, port=port, debug=bool(os.getenv("FLASK_DEBUG", False)))
+    debug = bool(os.getenv("FLASK_DEBUG", False))
+    if os.getenv('FLASK_DEBUG_SSL', None):
+        port = int(os.getenv('PORT', 8443))
+        app.run(host=host, port=port, debug=debug, ssl_context='adhoc')
+    else:
+        port = int(os.getenv('PORT', 5000))
+        app.run(host=host, port=port, debug=debug)


@app.route("/fail-test")
--- a/helix/models/dxf/graph_node_store.py
+++ b/helix/models/dxf/graph_node_store.py
@@ -25,6 +25,7 @@ class GraphNodeStore(list):
        dy = node.coordinate.y - coordinate.y
        return dx * dx + dy * dy

+    # FIXME: This is slow if called thousands of times. Do not add any overhead in this method.
    def find_coordinate(self, coordinate):
        # create and populate the quadtree on first request
        if self.quadTree is None:
@@ -33,9 +34,15 @@ class GraphNodeStore(list):
                self.quadTree.insert(node)
            del self[:]

-        possibilities = self.quadTree.retrieve(coordinate)
+        variance_square = self.variance ** 2
+        # Optimization: avoid creating a copy of the big list `self.quadTree.nodeList`
+        # Old: possibilities = self.quadTree.retrieve(coordinate)
+        possibilities = self.quadTree.nodeList
        for node in possibilities:
-            if self.distance_squared(node, coordinate) <= self.variance ** 2:
+            if self.distance_squared(node, coordinate) <= variance_square:
                return node
-        else:
-            return None
+        more_possibilities = self.quadTree.retrieve(coordinate, only_quads_related=True)
+        for node in more_possibilities:
+            if self.distance_squared(node, coordinate) <= variance_square:
+                return node
+        return None
--- a/helix/presenters/panel_presenter.py
+++ b/helix/presenters/panel_presenter.py
@@ -1,6 +1,3 @@
-import math
-
-from helix.models.coordinate import Coordinate
 import sys

 class ProjectPresenter(object):
--- a/helix/sales_force/init.py
+++ b/helix/sales_force/init.py
--- a/helix/sales_force/tasks.py
+++ b/helix/sales_force/tasks.py
@@ -0,0 +1,118 @@
+import io
+import uuid
+
+import requests
+
+from helix.calculators.calculator import Calculator
+from helix.constants import redis_constant, sql_constant
+from helix.constants.system_type import SystemType
+from helix.csv_builder import CsvBuilder
+from helix.doc_gen_params_builder import DocGenParamsBuilder
+from helix.helpers.camel_case import convert_dict_keys_to_snake_case
+from helix.json_builder import JsonBuilder
+from helix.presenters.image_presenter import ImagePresenter
+from helix.Services.doc_gen_service import DocGenService
+from helix.Services.s3_helper import s3_upload
+from helix.session_manager import SessionManager
+
+
+def get_site_characterization_from_sales_force(session, base_url):
+    '''
+    @base_url: Avoid URL_NOT_RESET errors
+    '''
+    access_token = session['sales_force_token']
+    sfid = session['SFID']
+    helix_id = session['id']
+    url = base_url + '/services/apexrest/v1/HelixRoofDetails'
+    headers = {'Authorization': 'Bearer {}'.format(access_token)}
+    result = requests.get(url, headers=headers, params={'SFID': sfid, 'helix_session_id': helix_id})
+    if result.status_code == 200:
+        data = result.json()
+        if data:
+            data = convert_sales_force_data_format_to_helix(data)
+        return data
+    else:
+        print('Error while getting data from Sales Force: {}'.format(result.status_code))
+        print(result.content)
+
+
+def convert_sales_force_data_format_to_helix(data):
+    data = convert_dict_keys_to_snake_case(data)
+
+    if data['system_type'] == 'Single-Tilt':
+        data['system_type'] = SystemType.singleTilt.value
+    elif data['system_type'] == 'Dual-Tilt':
+        data['system_type'] = SystemType.dualTilt.value
+
+    data['ballast_block_weight'] = data['ballast_weight']
+    data['max_system_pressure'] = data['max_psf'] = data['system_pressure']
+    return data
+    # data['spectral_response_acceleration']
+
+
+def export_to_sfdc(session_id):
+    step = 'Exporting to SFDC'
+    try:
+        # 1. Load User Values
+        step = 'Loading User Values'
+        session = {'id': session_id}
+        db_session = sql_constant.sql_session_maker()
+        session_manager = SessionManager(session, redis_constant.redis_store, db_session)
+        user_values = session_manager.user_values()
+        calculator = Calculator(user_values)
+
+        # 2. Generate BOM CSV file
+        step = 'Generating BOM'
+        bom = calculator.compute_bom()
+        csv_file = CsvBuilder().build_bom_output(bom)
+        # 2.1 Generate BOM CSV file
+        step = 'Generating BOM as JSON'
+        json_str = JsonBuilder().build_bom_output(bom)
+
+        # 3. Generate DOCUMENTATION PDF file
+        step = 'Generating Documentation'
+        image_presenter = ImagePresenter(user_values.system_type(), user_values.module_type())
+        doc_gen_service = DocGenService(requests, DocGenParamsBuilder(user_values, user_values.system_type(), calculator, image_presenter))
+        document = doc_gen_service.generate() # Call external service
+
+        # 4. Get Uploaded DXF file in the Helix system
+        step = 'Loading uploaded DXF'
+        dxf_contents = session_manager.site.dxf_file or session_manager.site.cad_file
+        # dxf_filename = session_manager.site.dxf_file_name
+
+        # 5. Save CSV/PDF/DXF files into AWS-S3
+        step = 'Uploading to S3'
+        filename = uuid.uuid4().hex
+        bom_csv_url = s3_upload(io.StringIO(csv_file), filename=filename + '.csv')
+        bom_json_url = s3_upload(io.StringIO(json_str), filename=filename + '.json')
+        doc_url = s3_upload(io.BytesIO(document), filename=filename + '.pdf')
+        if dxf_contents: # Optional
+            dxf_url = s3_upload(io.StringIO(dxf_contents), filename=filename + '.dxf')
+        else:
+            dxf_url = None
+
+        # 6. Notify SFDC system with an API request
+        step = 'Notifying SFDC'
+        SFDC_API_URL = 'https://localhost:8443/' # FIXME
+        data = {
+            'dxf_url': dxf_url,
+            'bom_csv_url': bom_csv_url,
+            'bom_json_url': bom_json_url,
+            'documentation_url': doc_url,
+        }
+        print(data)
+        # result = requests.post(SFDC_API_URL, data=data, timeout=30)
+
+        # 7. Internal logs
+        # if result.status_code != 200: # FIXME
+        #     print('')
+        # else:
+        #     print('')
+
+        db_session.close()
+        return data
+        # return result.status_code
+    except Exception as e:
+        msg = 'Error while {} for session {}'.format(step, session_id)
+        print(msg)
+        raise e
--- a/helix/static/css/animation.css
+++ b/helix/static/css/animation.css
@@ -0,0 +1,85 @@
+/*
+   Animation example, for spinners
+*/
+.animate-spin {
+  -moz-animation: spin 2s infinite linear;
+  -o-animation: spin 2s infinite linear;
+  -webkit-animation: spin 2s infinite linear;
+  animation: spin 2s infinite linear;
+  display: inline-block;
+}
+@-moz-keyframes spin {
+  0% {
+    -moz-transform: rotate(0deg);
+    -o-transform: rotate(0deg);
+    -webkit-transform: rotate(0deg);
+    transform: rotate(0deg);
+  }
+
+  100% {
+    -moz-transform: rotate(359deg);
+    -o-transform: rotate(359deg);
+    -webkit-transform: rotate(359deg);
+    transform: rotate(359deg);
+  }
+}
+@-webkit-keyframes spin {
+  0% {
+    -moz-transform: rotate(0deg);
+    -o-transform: rotate(0deg);
+    -webkit-transform: rotate(0deg);
+    transform: rotate(0deg);
+  }
+
+  100% {
+    -moz-transform: rotate(359deg);
+    -o-transform: rotate(359deg);
+    -webkit-transform: rotate(359deg);
+    transform: rotate(359deg);
+  }
+}
+@-o-keyframes spin {
+  0% {
+    -moz-transform: rotate(0deg);
+    -o-transform: rotate(0deg);
+    -webkit-transform: rotate(0deg);
+    transform: rotate(0deg);
+  }
+
+  100% {
+    -moz-transform: rotate(359deg);
+    -o-transform: rotate(359deg);
+    -webkit-transform: rotate(359deg);
+    transform: rotate(359deg);
+  }
+}
+@-ms-keyframes spin {
+  0% {
+    -moz-transform: rotate(0deg);
+    -o-transform: rotate(0deg);
+    -webkit-transform: rotate(0deg);
+    transform: rotate(0deg);
+  }
+
+  100% {
+    -moz-transform: rotate(359deg);
+    -o-transform: rotate(359deg);
+    -webkit-transform: rotate(359deg);
+    transform: rotate(359deg);
+  }
+}
+@keyframes spin {
+  0% {
+    -moz-transform: rotate(0deg);
+    -o-transform: rotate(0deg);
+    -webkit-transform: rotate(0deg);
+    transform: rotate(0deg);
+  }
+
+  100% {
+    -moz-transform: rotate(359deg);
+    -o-transform: rotate(359deg);
+    -webkit-transform: rotate(359deg);
+    transform: rotate(359deg);
+  }
+}
--- a/helix/static/css/fontello.css
+++ b/helix/static/css/fontello.css
@@ -1,11 +1,11 @@
@font-face {
  font-family: 'fontello';
-  src: url('../font/fontello.eot?10976371');
-  src: url('../font/fontello.eot?10976371#iefix') format('embedded-opentype'),
-       url('../font/fontello.woff2?10976371') format('woff2'),
-       url('../font/fontello.woff?10976371') format('woff'),
-       url('../font/fontello.ttf?10976371') format('truetype'),
-       url('../font/fontello.svg?10976371#fontello') format('svg');
+  src: url('../font/fontello.eot?24283821');
+  src: url('../font/fontello.eot?24283821#iefix') format('embedded-opentype'),
+       url('../font/fontello.woff2?24283821') format('woff2'),
+       url('../font/fontello.woff?24283821') format('woff'),
+       url('../font/fontello.ttf?24283821') format('truetype'),
+       url('../font/fontello.svg?24283821#fontello') format('svg');
  font-weight: normal;
  font-style: normal;
 }
@@ -15,7 +15,7 @@
@media screen and (-webkit-min-device-pixel-ratio:0) {
  @font-face {
    font-family: 'fontello';
-    src: url('../font/fontello.svg?10976371#fontello') format('svg');
+    src: url('../font/fontello.svg?24283821#fontello') format('svg');
  }
 }
 */
@@ -69,4 +69,5 @@
 .icon-info:before { content: '\e80b'; } /* '' */
 .icon-close:before { content: '\e80c'; } /* '' */
 .icon-sunpower-logo:before { content: '\e80d'; } /* '' */
-.icon-upload-cloud:before { content: '\e80e'; } /* '' */
+.icon-upload-cloud:before { content: '\e80e'; } /* '' */
+.icon-spin6:before { content: '\e839'; } /* '' */
--- a/helix/static/css/main.css
+++ b/helix/static/css/main.css
@@ -1023,3 +1023,21 @@ table .right_border_cell {
  margin-bottom: 25px;
 }

+.spinner-panel {
+  position: fixed;
+  margin: 0 auto;
+  top: 0;
+  left: 0;
+  width: 0; /* It will be updated to 100% in JS. Workaround for Safari issue with display:none; */
+  height: 100%;
+  background-color: rgba(0, 0, 0, 0.8);
+  z-index: 1;
+
+  display: flex;
+  flex-flow: column nowrap;
+  align-items: center;
+  justify-content: center;
+  color: #fff;
+  font-weight: bold;
+  font-size: 24px;
+}
--- a/helix/static/font/fontello.eot
+++ b/helix/static/font/fontello.eot
--- a/helix/static/font/fontello.svg
+++ b/helix/static/font/fontello.svg
@@ -1,7 +1,7 @@
 <?xml version="1.0" standalone="no"?>
 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 <svg xmlns="http://www.w3.org/2000/svg">
-<metadata>Copyright (C) 2016 by original authors @ fontello.com</metadata>
+<metadata>Copyright (C) 2017 by original authors @ fontello.com</metadata>
 <defs>
 <font id="fontello" horiz-adv-x="1000" >
 <font-face font-family="fontello" font-weight="400" font-stretch="normal" units-per-em="1000" ascent="850" descent="-150" />
@@ -35,6 +35,8 @@
 <glyph glyph-name="sunpower-logo" unicode="&#xe80d;" d="M466 633c-35 61-77 96-152 96-78 0-146-56-146-137 0-76 78-111 138-138l59-26c114-50 211-107 211-248 0-154-124-272-277-272-141 0-247 91-275 228l96 27c13-90 82-164 177-164 94 0 181 73 181 172 0 103-81 138-163 175l-53 24c-103 47-192 99-192 225 0 137 116 225 247 225 98 0 181-50 228-137l-79-50 0 0z m537-353c0-66-3-140 38-197 39-53 114-84 178-84 63 0 132 29 173 79 47 56 43 133 43 202l0 525 99 0 0-552c0-96-7-172-78-244-60-66-148-101-237-101-83 0-168 32-228 90-77 74-86 154-86 255l0 552 98 0 0-525 0 0z m874 562l688-720 0 683 98 0 0-922-688 720 0-680-98 0 0 919z m1255-128l36 0c114 0 230-11 230-155 0-126-92-159-201-159l-65 0 0 314 0 0z m0-405l71 0c74 0 150 9 209 58 55 46 84 119 84 190 0 78-33 155-99 201-64 44-143 47-219 47l-145 0 0-882 99 0 0 386 0 0z m1949-165l285 706 285-706 232 661 106 0-338-927-285 709-285-709-338 927 106 0 232-661z m1128 661l457 0 0-91-359 0 0-262 348 0 0-91-348 0 0-347 359 0 0-91-457 0 0 882z m886-91l29 0c118 0 225-14 225-159 0-137-113-158-224-158l-30 0 0 317 0 0z m0-404l24 0 267-387 120 0-280 395c136 12 221 108 221 244 0 198-156 243-323 243l-127 0 0-882 98 0 0 387 0 0z m-2487 53c0-257-204-453-463-453-253 0-456 205-456 451 0 249 201 454 456 454 259 0 463-195 463-452m-816-2c0-188 150-354 348-354 204 0 363 154 363 354 0 203-157 357-363 357-200 0-348-166-348-357m3755 309c0 24 6 46 18 67 12 21 29 38 50 50 21 12 43 18 67 18 24 0 47-6 68-18 21-12 37-29 49-49 12-21 18-44 18-68 0-24-6-46-17-66-12-21-28-38-49-50-21-13-44-19-69-19-24 0-47 6-68 19-21 12-37 29-49 49-12 21-18 43-18 67l0 0z m17 0c0-21 5-41 16-59 11-18 25-33 43-43 18-11 38-16 59-16 22 0 41 5 59 16 19 10 33 25 44 43 10 18 16 38 16 59 0 21-6 40-16 58-10 18-24 33-43 44-18 11-38 16-60 16-21 0-40-5-59-16-18-10-32-25-43-43-11-19-16-38-16-59l0 0z m166 33c0-9-2-17-6-25-5-7-12-12-20-17l42-70-22 0-37 65-30 0 0-65-18 0 0 158 37 0c18 0 31-4 40-11 10-8 14-19 14-35l0 0z m-73-33l20 0c11 0 19 3 25 8 7 6 10 14 10 25 0 20-12 30-36 30l-19 0 0-63 0 0z" horiz-adv-x="7828" />

 <glyph glyph-name="upload-cloud" unicode="&#xe80e;" d="M760 494q100 0 170-68t70-166-70-166-170-68l-190 0 0 190 106 0-176 230-174-230 104 0 0-190-248 0q-74 0-128 52t-54 124q0 74 53 126t129 52q14 0 20-2-2 12-2 38 0 108 78 184t188 76q90 0 160-52t94-134q28 4 40 4z" horiz-adv-x="1000" />
+
+<glyph glyph-name="spin6" unicode="&#xe839;" d="M855 9c-189-190-520-172-705 13-190 190-200 494-28 695 11 13 21 26 35 34 36 23 85 18 117-13 30-31 35-76 16-112-5-9-9-15-16-22-140-151-145-379-8-516 153-153 407-121 542 34 106 122 142 297 77 451-83 198-305 291-510 222l0 1c236 82 492-24 588-252 71-167 37-355-72-493-11-15-23-29-36-42z" horiz-adv-x="1000" />
 </font>
 </defs>
 </svg>
--- a/helix/static/font/fontello.ttf
+++ b/helix/static/font/fontello.ttf
--- a/helix/static/font/fontello.woff
+++ b/helix/static/font/fontello.woff
--- a/helix/static/font/fontello.woff2
+++ b/helix/static/font/fontello.woff2
--- a/helix/static/javascripts/array_summary_bundle.js
+++ b/helix/static/javascripts/array_summary_bundle.js
@@ -73,15 +73,18 @@
 	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

 	$(document).ready(function () {
-	  (0, _auto_upload2.default)();
-	  var subarrayDisplay = new _subarray_display2.default();
-	  subarrayDisplay.init($('#current_anchors'), $('#needed_anchors'), $('#subarray_weight'), panel_data);
-	  var arrayVisualization = new _array_visualization2.default(panel_data, is_dual_tilt, subarrayDisplay, buildings_coordinates);
-	  arrayVisualization.init();
-	  new _zoom_control2.default(arrayVisualization).init($('#zoom_control'));
-	  new _overlay_control2.default(arrayVisualization).init($('#overlay_control'), $('#legend_container'));
-	  new _seismic_control2.default(arrayVisualization, subarrayDisplay).init($('.seismic_anchor_control'), $("#seismic_save"));
-	  window.arrayVisualization = arrayVisualization;
+	    (0, _auto_upload2.default)();
+
+	    if (is_csv_available) {
+	        var subarrayDisplay = new _subarray_display2.default();
+	        subarrayDisplay.init($('#current_anchors'), $('#needed_anchors'), $('#subarray_weight'), panel_data);
+	        var arrayVisualization = new _array_visualization2.default(panel_data, is_dual_tilt, subarrayDisplay, buildings_coordinates);
+	        arrayVisualization.init();
+	        new _zoom_control2.default(arrayVisualization).init($('#zoom_control'));
+	        new _overlay_control2.default(arrayVisualization).init($('#overlay_control'), $('#legend_container'));
+	        new _seismic_control2.default(arrayVisualization, subarrayDisplay).init($('.seismic_anchor_control'), $("#seismic_save"));
+	        window.arrayVisualization = arrayVisualization;
+	    }
 	});

 /***/ }),
@@ -24730,28 +24733,32 @@
 	"use strict";

 	Object.defineProperty(exports, "__esModule", {
-		value: true
+	  value: true
 	});
 	var AutoUpload = function AutoUpload() {
-		$("#file_upload").change(function (e) {
-			var ten_megabyte_max_upload = 10000000;
-			$("#error_container_txt").empty();
-			if (e.currentTarget.files[0].size < ten_megabyte_max_upload) {
-				e.currentTarget.form.submit();
-			} else {
-				$("#error_container_txt").append('<span class="error_message centered_error" id="error_message_txt">The system configuration you have uploaded is too large. Try splitting your design into two separate text files and run the tool twice.</span>');
-			}
-		});
+	  $("#file_upload").change(function (e) {
+	    var ten_megabyte_max_upload = 10000000;
+	    $("#error_container_txt").empty();
+	    if (e.currentTarget.files[0].size < ten_megabyte_max_upload) {
+	      // $('#spinner-panel').show();
+	      $('#spinner-panel').css('width', '100%'); // Workaround for Safari issue
+	      e.currentTarget.form.submit();
+	    } else {
+	      $("#error_container_txt").append('<span class="error_message centered_error" id="error_message_txt">The system configuration you have uploaded is too large. Try splitting your design into two separate text files and run the tool twice.</span>');
+	    }
+	  });

-		$("#dxf_upload").change(function (e) {
-			var ten_megabyte_max_upload = 10000000;
-			$("#error_container_dxf").empty();
-			if (e.currentTarget.files[0].size < ten_megabyte_max_upload) {
-				e.currentTarget.form.submit();
-			} else {
-				$("#error_container_dxf").append('<span class="error_message centered_error" id="error_message_dxf">The system configuration you have uploaded is too large. Try splitting your design into two separate text files and run the tool twice.</span>');
-			}
-		});
+	  $("#dxf_upload").change(function (e) {
+	    var ten_megabyte_max_upload = 10000000;
+	    $("#error_container_dxf").empty();
+	    if (e.currentTarget.files[0].size < ten_megabyte_max_upload) {
+	      // $('#spinner-panel').show();
+	      $('#spinner-panel').css('width', '100%'); // Workaround for Safari issue
+	      e.currentTarget.form.submit();
+	    } else {
+	      $("#error_container_dxf").append('<span class="error_message centered_error" id="error_message_dxf">The system configuration you have uploaded is too large. Try splitting your design into two separate text files and run the tool twice.</span>');
+	    }
+	  });
 	};

 	exports.default = AutoUpload;
--- a/helix/templates/array_summary.html.jinja
+++ b/helix/templates/array_summary.html.jinja
@@ -1,6 +1,15 @@
 {% extends "layout.html.jinja" %}
 {% set title = "Helix Calculator" %}
 {% block contents %}
+    <script>
+        var is_csv_available = {{ context['csv_available']|tojson|safe }};
+    </script>
+
+    <div id="spinner-panel" class="spinner-panel">
+        <p>Uploading files. Please wait, this may take a while.</p>
+        <i class="icon-spin6 animate-spin"></i>
+    </div>
+
    {% if not context['csv_available'] %}
        <form action="" method="post" enctype="multipart/form-data">
            {{ form.csrf_token }}
--- a/helix/templates/download.html.jinja
+++ b/helix/templates/download.html.jinja
@@ -1,6 +1,10 @@
 {% extends "layout.html.jinja" %}
 {% set title = "Helix Calculator" %}
 {% block contents %}
+    {% for warning in context['warning_messages'] %}
+        <div class="summary_warning">{{ warning.value }}</div>
+    {% endfor %}
+
    <div class="form_section">
        <h3>Download</h3>
    </div>
@@ -20,6 +24,14 @@
                <button>Download BOM (.txt)</button>
            </a>
        </div>
+
+        {% if 'SFID' in session %}
+        <div class="download">
+            <a href="/export-sfdc">
+                <button>Export documents to Salesforce</button>
+            </a>
+        </div>
+        {% endif %}
    {% else %}
        Please complete previous steps first!
    {% endif %}
--- a/helix/templates/layout.html.jinja
+++ b/helix/templates/layout.html.jinja
@@ -8,6 +8,7 @@
    <link href="//cdn.rawgit.com/noelboss/featherlight/1.7.6/release/featherlight.min.css" type="text/css" rel="stylesheet" />
    <link rel="shortcut icon" href="https://us.sunpower.com/sites/sunpower/files/favicon.ico">
    <link rel="stylesheet" type="text/css" href={{ url_for('static', filename='css/fontello.css') }}>
+    <link rel="stylesheet" type="text/css" href={{ url_for('static', filename='css/animation.css') }}>
    <script src="https://code.jquery.com/jquery-2.2.4.min.js"
      integrity="sha256-BbhdlvQf/xTY9gja0Dq3HiwQF8LaCRTXxZKRutelT44="
      crossorigin="anonymous"></script>
--- a/helix/templates/navigation_buttons.html.jinja
+++ b/helix/templates/navigation_buttons.html.jinja
@@ -1,5 +1,9 @@
 <div class="navigation_buttons">
-    <a class="back button" href="{{ context['steps'][context['current_step'] - 2][2] }}">Back</a>
+    {% if context['hide_back'] %}
+    {% else %}
+        <a class="back button" href="{{ context['steps'][context['current_step'] - 2][2] }}">Back</a>
+    {% endif %}
+
    {% if context['steps']|length > context['current_step'] and not context.get('no_proceed') %}
        {% if not form or context['override_form'] %}
            <a class="button" href="{{ context['steps'][context['current_step']][2] }}" value="Next">Next</a>
--- a/helix/templates/site_summary.html.jinja
+++ b/helix/templates/site_summary.html.jinja
@@ -3,10 +3,11 @@
 {% block contents %}
    {% if context['site_data_available'] %}
        <div class="form_section">
-            <h3>Summary</h3>
+            <h3>Summary <small>({{ context['project_name'] }})</small></h3>
            {% for warning in context['warning_messages'] %}
                <div class="summary_warning">{{ warning.value }}</div>
            {% endfor %}
+
            <table class="summary_table" id="summary_table">
                <tr>
                    <td colspan="2" class="table_meta_headers">OUTPUTS</td>
@@ -80,8 +81,13 @@
                </tr>
            </table>

+
        </div>

+
    {% endif %}
    {% include "navigation_buttons.html.jinja" %}
+    {% if 'SFID' in session %}
+        <small><i>Sales Force project</i> (<a href="/sales_force_logout">Logout</a>)</small>
+    {% endif %}
 {% endblock %}
--- a/helix/user_values.py
+++ b/helix/user_values.py
@@ -8,7 +8,7 @@ from helix.constants.panel_type import PanelType
 from helix.constants.system_type import SystemType
 from helix.models.coordinate import Coordinate
 from helix.models.panel import PanelData, Panel
-from helix.models.sql.inverter_brands import InverterBrand
+

 class UserValues(object):
    def __init__(self, store, site):
--- a/helix/validators/.file_validator.py.swp
+++ b/helix/validators/.file_validator.py.swp
--- a/helix/validators/csv_input_validator.py
+++ b/helix/validators/csv_input_validator.py
@@ -30,7 +30,7 @@ class CsvInputValidator(object):

            file_validation_chain = [
                CsvInputValidator.validate_file_for_panel_types,
-                CsvInputValidator.validate_for_spacing,
+               # CsvInputValidator.validate_for_spacing,  # disabling this feature for the moment
            ]
            result = self.run_validation_chain(headers, rows, file_validation_chain)
            if result:
--- a/helix/validators/dxf_input_validator.py
+++ b/helix/validators/dxf_input_validator.py
@@ -1,5 +1,3 @@
-from helix.constants.file_validation_error import FileValidationMessage, FileValidationError
-

 class DxfInputValidator(object):
    def __init__(self, _):
--- a/requirements.test.txt
+++ b/requirements.test.txt
@@ -7,3 +7,7 @@ mockredispy==2.9.0.11
 Flask-Testing==0.4.2
 splinter[flask]
 pillow==3.3.1
+eralchemy==1.1.0
+locust==0.8
+pylint==1.7.4
+pyopenssl==17.5.0
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,5 @@
+gunicorn==19.7.1
+meinheld==0.6.1
 Flask==0.10.1
 itsdangerous==0.24
 Jinja2==2.8
@@ -18,3 +20,6 @@ invoke==0.13.0
 dxfgrabber==0.8.1
 rollbar==0.13.11
 blinker==1.4
+Flask-OAuthlib==0.9.4
+boto3==1.4.8
+ujson==1.3.5
--- a/tasks.py
+++ b/tasks.py
@@ -1,4 +1,5 @@
 from invoke import run, task
+import os


@task
@@ -34,9 +35,10 @@ def test_js(ctx):
 def update_version(ctx):
    run('echo "import os\n\n\ndef version():\n    if os.getenv(\'VERSION\'):\n        return os.getenv(\'VERSION\')\n    return \'$(git describe --tags)\'" > helix/constants/version.py')

+
@task
 def serve(ctx):
-    run('PYTHONPATH=. SP_DOCGEN_API_KEY=DC97-20AF-567E python helix/main.py')
+    run('SP_DOCGEN_API_KEY=DC97-20AF-567E gunicorn -c gunicorn_config.py --pythonpath helix main:app')


@task
@@ -52,3 +54,23 @@ def db_migrate(ctx):
@task
 def serve_debug(ctx):
    run('PYTHONPATH=. FLASK_DEBUG=1 SP_DOCGEN_API_KEY=DC97-20AF-567E python helix/main.py')
+
+
+@task
+def db_diagram(ctx):
+    db_uri = os.getenv('DATABASE_URL', 'postgres://pivotal:@localhost:5432/pivotal')
+    run('eralchemy -i "{}" -o documentation/db_schema.png -x temp audit'.format(db_uri))
+
+@task
+def classes_diagrams(ctx):
+    run('pyreverse -k -o calculators-diagram.png helix/calculators')
+    run('pyreverse -k -o constants-diagram.png helix/constants')
+    run('pyreverse -k -o forms-diagram.png helix/forms')
+    run('pyreverse -k -o models-diagram.png helix/models')
+    run('pyreverse -k -o validators-diagram.png helix/validators')
+    run('rm -rf packages*.png ; mv classes.*-diagram.png documentation/')
+
+
+@task
+def serve_ssl(ctx):
+    run('FLASK_DEBUG_SSL=true PORT=8443 PYTHONPATH=. FLASK_DEBUG=1 SP_DOCGEN_API_KEY=DC97-20AF-567E python helix/main.py')
--- a/test/calculators/ballast/ballast_and_tray_count_test.py
+++ b/test/calculators/ballast/ballast_and_tray_count_test.py
@@ -28,7 +28,7 @@ class BallastAndTrayCountTest(unittest.TestCase):
        eq_(result.ballast_count, 0)
        eq_(result.link_tray_count, 0)
        eq_(result.cross_tray_count, 0)
-        eq_(result.system_weight, 69.75)
+        eq_(result.system_weight, 65.87)
        eq_(result.needs_anchor, False)

    def test_ballast_no_trays(self):
@@ -38,27 +38,27 @@ class BallastAndTrayCountTest(unittest.TestCase):
        eq_(result.ballast_count, 4)
        eq_(result.link_tray_count, 0)
        eq_(result.cross_tray_count, 0)
-        eq_(result.system_weight, 69.75)
+        eq_(result.system_weight, 65.87)
        eq_(result.needs_anchor, False)

    def test_ballast_and_link_trays(self):
        self.force_to_resist = 230
        result = self.subject.ballast_and_tray_count(self.force_to_resist, self.panel_type, self.ballast_block_weight, self.anchor_count)

-        eq_(result.ballast_count, 8)
+        eq_(result.ballast_count, 9)
        eq_(result.link_tray_count, 1)
        eq_(result.cross_tray_count, 0)
-        eq_(result.system_weight, 72.05)
+        eq_(result.system_weight, 67.73)
        eq_(result.needs_anchor, False)

    def test_ballast_and_oscillate_between_0_and_1_link_trays(self):
        self.force_to_resist = 210
        result = self.subject.ballast_and_tray_count(self.force_to_resist, self.panel_type, self.ballast_block_weight, self.anchor_count)

-        eq_(result.ballast_count, 7)
+        eq_(result.ballast_count, 8)
        eq_(result.link_tray_count, 1)
        eq_(result.cross_tray_count, 0)
-        eq_(result.system_weight, 72.05)
+        eq_(result.system_weight, 67.73)
        eq_(result.needs_anchor, False)

    def test_ballast_and_link_tray_and_cross_tray(self):
@@ -68,17 +68,17 @@ class BallastAndTrayCountTest(unittest.TestCase):
        eq_(result.ballast_count, 16)
        eq_(result.link_tray_count, 1)
        eq_(result.cross_tray_count, 1)
-        eq_(result.system_weight, 75.23)
+        eq_(result.system_weight, 70.88)
        eq_(result.needs_anchor, False)

    def test_ballast_and_link_tray_and_oscillate_between_0_and_1_cross_trays(self):
        self.force_to_resist = 330
        result = self.subject.ballast_and_tray_count(self.force_to_resist, self.panel_type, self.ballast_block_weight, self.anchor_count)

-        eq_(result.ballast_count, 13)
+        eq_(result.ballast_count, 14)
        eq_(result.link_tray_count, 1)
        eq_(result.cross_tray_count, 0)
-        eq_(result.system_weight, 72.05)
+        eq_(result.system_weight, 67.73)
        eq_(result.needs_anchor, False)

    def test_ballast_and_link_tray_and_2_cross_trays(self):
@@ -88,17 +88,17 @@ class BallastAndTrayCountTest(unittest.TestCase):
        eq_(result.ballast_count, 25)
        eq_(result.link_tray_count, 1)
        eq_(result.cross_tray_count, 2)
-        eq_(result.system_weight, 78.41)
+        eq_(result.system_weight, 74.03)
        eq_(result.needs_anchor, False)

    def test_ballast_and_link_tray_and_at_first_2_then_1_cross_trays(self):
        self.force_to_resist = 515
        result = self.subject.ballast_and_tray_count(self.force_to_resist, self.panel_type, self.ballast_block_weight, self.anchor_count)

-        eq_(result.ballast_count, 22)
+        eq_(result.ballast_count, 23)
        eq_(result.link_tray_count, 1)
-        eq_(result.cross_tray_count, 1)
-        eq_(result.system_weight, 75.23)
+        eq_(result.cross_tray_count, 2)
+        eq_(result.system_weight, 74.03)
        eq_(result.needs_anchor, False)

    def test_ballast_and_all_trays_and_anchor(self):
@@ -108,15 +108,15 @@ class BallastAndTrayCountTest(unittest.TestCase):
        eq_(result.ballast_count, 35)
        eq_(result.link_tray_count, 1)
        eq_(result.cross_tray_count, 2)
-        eq_(result.system_weight, 78.41)
+        eq_(result.system_weight, 74.03)
        eq_(result.needs_anchor, True)

    def test_ballast_and_all_trays_and_at_first_anchor_then_no_anchor(self):
        self.force_to_resist = 675
        result = self.subject.ballast_and_tray_count(self.force_to_resist, self.panel_type, self.ballast_block_weight, self.anchor_count)

-        eq_(result.ballast_count, 30)
+        eq_(result.ballast_count, 31)
        eq_(result.link_tray_count, 1)
        eq_(result.cross_tray_count, 2)
-        eq_(result.system_weight, 78.41)
-        eq_(result.needs_anchor, False)
+        eq_(result.system_weight, 74.03)
+        eq_(result.needs_anchor, True)
--- a/test/calculators/ballast/ballast_calculator_dual_tilt_128_cell_test.py
+++ b/test/calculators/ballast/ballast_calculator_dual_tilt_128_cell_test.py
@@ -48,23 +48,23 @@ class BallastCalculatorWhenDualTiltAnd128CellTest(unittest.TestCase):
        expected_value = {
            PanelType.Corner: {
                'anchors': [3, 2, 0, 0, 0],
-                'ballast blocks': [15, 14, 25, 12, 0],
-                'pressure': ['8.14', '7.74', '12.11', '6.88', '2.12']
+                'ballast blocks': [14, 13, 25, 12, 0],
+                'pressure': ['8.00', '7.61', '12.36', '7.16', '2.40']
            },
            PanelType.NorthSouth: {
                'anchors': [3, 2, 0, 0, 0],
-                'ballast blocks': [7, 8, 22, 10, 0],
-                'pressure': ['4.90', '5.29', '10.83', '6.05', '2.10']
+                'ballast blocks': [6, 7, 21, 9, 0],
+                'pressure': ['4.79', '5.18', '10.72', '5.93', '2.38']
            },
            PanelType.EastWest: {
                'anchors': [3, 2, 0, 0, 0],
-                'ballast blocks': [8, 8, 22, 10, 0],
-                'pressure': ['5.25', '5.25', '10.78', '5.97', '2.02']
+                'ballast blocks': [7, 7, 21, 10, 0],
+                'pressure': ['5.18', '5.18', '10.71', '6.29', '2.31']
            },
            PanelType.Middle: {
                'anchors': [2, 0, 0, 0, 0],
-                'ballast blocks': [15, 32, 18, 8, 0],
-                'pressure': ['8.02', '14.73', '9.13', '5.17', '1.99']
+                'ballast blocks': [14, 31, 17, 7, 0],
+                'pressure': ['7.89', '14.66', '9.07', '5.10', '2.29']
            },
        }

@@ -89,19 +89,19 @@ class BallastCalculatorWhenDualTiltAnd128CellTest(unittest.TestCase):

        expected_value = [
            Panel(wind_zone=2, panel_type=PanelType.Corner, ballast=25, link_tray=2, cross_tray=2, wind_anchors=0,
-                  pressure=12.11),
-            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, ballast=22, link_tray=2, cross_tray=1, wind_anchors=0,
-                  pressure=10.83),
+                  pressure=12.360800772863891),
+            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, ballast=21, link_tray=2, cross_tray=1, wind_anchors=0,
+                  pressure=10.715259768140834),
            Panel(wind_zone=4, panel_type=PanelType.EastWest, ballast=0, link_tray=0, cross_tray=0, wind_anchors=0,
-                  pressure=2.02),
-            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=15, link_tray=2, cross_tray=1, wind_anchors=3,
-                  pressure=8.14),
-            Panel(wind_zone=1, panel_type=PanelType.Middle, ballast=32, link_tray=2, cross_tray=3, wind_anchors=0,
-                  pressure=14.73),
-            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, ballast=10, link_tray=1, cross_tray=0, wind_anchors=0,
-                  pressure=6.05),
+                  pressure=2.3107513954486905),
+            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=14, link_tray=2, cross_tray=1, wind_anchors=3,
+                  pressure=8.001084156290254),
+            Panel(wind_zone=1, panel_type=PanelType.Middle, ballast=31, link_tray=2, cross_tray=3, wind_anchors=0,
+                  pressure=14.659635036496352),
+            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, ballast=9, link_tray=1, cross_tray=0, wind_anchors=0,
+                  pressure=5.928870759982826),
            Panel(wind_zone=1, panel_type=PanelType.Corner, ballast=44, link_tray=2, cross_tray=4, wind_anchors=0,
-                  pressure=19.65)
+                  pressure=19.907666380420782)
            ]

        assert_array_is_close(self.subject.ballast_and_trays_matrix(self.c_p_matrix, self.q_z, raw_data),
@@ -120,20 +120,20 @@ class BallastCalculatorWhenDualTiltAnd128CellTest(unittest.TestCase):
        self.values.ballast_block_weight.return_value = 20

        expected_value = [
-            Panel(wind_zone=2, panel_type=PanelType.Corner, ballast=30, link_tray=2, cross_tray=2, wind_anchors=0,
-                  pressure=14.06, fuzzy_wind_zone=True),
+            Panel(wind_zone=2, panel_type=PanelType.Corner, ballast=29, link_tray=2, cross_tray=2, wind_anchors=0,
+                  pressure=13.923703, fuzzy_wind_zone=True),
            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, ballast=25, link_tray=2, cross_tray=2, wind_anchors=0,
-                  pressure=12.06, fuzzy_wind_zone=True),
-            Panel(wind_zone=4, panel_type=PanelType.EastWest, ballast=1, link_tray=0, cross_tray=0, wind_anchors=0,
-                  pressure=2.41, fuzzy_wind_zone=True),
-            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=10, link_tray=2, cross_tray=1, wind_anchors=4,
-                  pressure=6.18, fuzzy_wind_zone=True, warnings=[PanelWarnings.MaxPsf]),
-            Panel(wind_zone=1, panel_type=PanelType.Middle, ballast=37, link_tray=2, cross_tray=4, wind_anchors=0,
-                  pressure=16.75, fuzzy_wind_zone=True),
+                  pressure=12.339897, fuzzy_wind_zone=True),
+            Panel(wind_zone=4, panel_type=PanelType.EastWest, ballast=0, link_tray=0, cross_tray=0, wind_anchors=0,
+                  pressure=2.310751, fuzzy_wind_zone=True),
+            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=9, link_tray=2, cross_tray=1, wind_anchors=4,
+                  pressure=6.047456, fuzzy_wind_zone=True, warnings=[PanelWarnings.MaxPsf]),
+            Panel(wind_zone=1, panel_type=PanelType.Middle, ballast=36, link_tray=2, cross_tray=4, wind_anchors=0,
+                  pressure=16.674802, fuzzy_wind_zone=True),
            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, ballast=12, link_tray=2, cross_tray=0, wind_anchors=0,
-                  pressure=6.86, fuzzy_wind_zone=True),
-            Panel(wind_zone=1, panel_type=PanelType.Corner, ballast=7, link_tray=2, cross_tray=0, wind_anchors=3,
-                  pressure=4.93, fuzzy_wind_zone=True)
+                  pressure=7.137190, fuzzy_wind_zone=True),
+            Panel(wind_zone=1, panel_type=PanelType.Corner, ballast=6, link_tray=2, cross_tray=0, wind_anchors=3,
+                  pressure=4.813740, fuzzy_wind_zone=True)
        ]

        assert_array_is_close(self.subject.ballast_and_trays_matrix(self.c_p_matrix, self.q_z, raw_data),
@@ -155,19 +155,19 @@ class BallastCalculatorWhenDualTiltAnd128CellTest(unittest.TestCase):

        expected = [
            Panel(wind_zone=2, panel_type=PanelType.Corner, wind_anchors=0, seismic_anchors=1,
-                  ballast=11, link_tray=2, cross_tray=0, pressure=6.49),
+                  ballast=10, link_tray=2, cross_tray=0, pressure=6.376642335766423),
            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, wind_anchors=0, seismic_anchors=1,
-                  ballast=6, link_tray=1, cross_tray=0, pressure=4.49),
+                  ballast=6, link_tray=1, cross_tray=0, pressure=4.756693860025763),
            Panel(wind_zone=4, panel_type=PanelType.EastWest, wind_anchors=0, seismic_anchors=1,
-                  ballast=0, link_tray=0, cross_tray=0, pressure=2.02),
+                  ballast=0, link_tray=0, cross_tray=0, pressure=2.3107513954486905),
            Panel(wind_zone=0, panel_type=PanelType.Corner, wind_anchors=3, seismic_anchors=0,
-                  ballast=15, link_tray=2, cross_tray=1, pressure=8.14),
+                  ballast=14, link_tray=2, cross_tray=1, pressure=8.001084156290254),
            Panel(wind_zone=1, panel_type=PanelType.Middle, wind_anchors=0, seismic_anchors=1,
-                  ballast=17, link_tray=2, cross_tray=2, pressure=8.81),
+                  ballast=16, link_tray=2, cross_tray=1, pressure=8.675476599398884),
            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, wind_anchors=0, seismic_anchors=1,
-                  ballast=0, link_tray=0, cross_tray=0, pressure=2.10),
+                  ballast=0, link_tray=0, cross_tray=0, pressure=2.3761979390296264),
            Panel(wind_zone=1, panel_type=PanelType.Corner, wind_anchors=2, seismic_anchors=0,
-                  ballast=14, link_tray=2, cross_tray=1, pressure=7.74),
+                  ballast=13, link_tray=2, cross_tray=1, pressure=7.610358522971233),
        ]

        result = self.subject.update_ballast(self.c_p_matrix, self.q_z, panels)
@@ -211,35 +211,37 @@ class BallastCalculatorWhenDualTiltAnd128CellTest(unittest.TestCase):
        ]

        expected_value = [
-            Panel(wind_zone=2, panel_type=PanelType.Corner, ballast=25, link_tray=2, cross_tray=2, wind_anchors=0, pressure=12.11),
-            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, ballast=22, link_tray=2, cross_tray=1, wind_anchors=0, pressure=10.83),
-            Panel(wind_zone=4, panel_type=PanelType.EastWest, ballast=0, link_tray=0, cross_tray=0, wind_anchors=0, pressure=2.02),
-            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=15, link_tray=2, cross_tray=1, wind_anchors=3, pressure=8.14),
-            Panel(wind_zone=1, panel_type=PanelType.Middle, ballast=32, link_tray=2, cross_tray=3, wind_anchors=0, pressure=14.73),
-            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, ballast=10, link_tray=1, cross_tray=0, wind_anchors=0, pressure=6.05),
-            Panel(wind_zone=1, panel_type=PanelType.Corner, ballast=14, link_tray=2, cross_tray=1, wind_anchors=2, pressure=7.74)
+            Panel(wind_zone=2, panel_type=PanelType.Corner, ballast=25, link_tray=2, cross_tray=2, wind_anchors=0, pressure=12.360800772863891),
+            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, ballast=21, link_tray=2, cross_tray=1, wind_anchors=0, pressure=10.715259768140834),
+            Panel(wind_zone=4, panel_type=PanelType.EastWest, ballast=0, link_tray=0, cross_tray=0, wind_anchors=0, pressure=2.3107513954486905),
+            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=14, link_tray=2, cross_tray=1, wind_anchors=3, pressure=8.001084156290254),
+            Panel(wind_zone=1, panel_type=PanelType.Middle, ballast=31, link_tray=2, cross_tray=3, wind_anchors=0, pressure=14.659635036496352),
+            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, ballast=9, link_tray=1, cross_tray=0, wind_anchors=0, pressure=5.928870759982826),
+            Panel(wind_zone=1, panel_type=PanelType.Corner, ballast=13, link_tray=2, cross_tray=1, wind_anchors=2, pressure=7.610358522971233)
        ]

+        print("===\r\n")
+        print(self.subject.ballast_and_trays_matrix(self.c_p_matrix, self.q_z, panel_data))
        assert_array_is_close(self.subject.ballast_and_trays_matrix(self.c_p_matrix, self.q_z, panel_data), expected_value, decimal=2)

    def test_ballast_count_when_base_weight_greater_than_uplift(self):
-        expected = Panel(wind_zone=4, panel_type=PanelType.Middle, ballast=0, link_tray=0, cross_tray=0, wind_anchors=0, pressure=1.99)
+        expected = Panel(wind_zone=4, panel_type=PanelType.Middle, ballast=0, link_tray=0, cross_tray=0, wind_anchors=0, pressure=2.289848)
        assert self.subject.ballast_tray_and_anchor_count(4, PanelType.Middle, 14, 100, self.c_p_matrix, self.q_z).almost_equal(expected, decimal=2)

    def test_individual_ballast_block_uplift_greater_than_base_weight(self):
-        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=21, link_tray=2, cross_tray=2, wind_anchors=2, pressure=7.91)
+        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=19, link_tray=2, cross_tray=2, wind_anchors=2, pressure=7.682057)
        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Middle, 14, 100, self.c_p_matrix, self.q_z).almost_equal(expected, decimal=2)

-        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=15, link_tray=2, cross_tray=2, wind_anchors=2, pressure=8.02)
+        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=14, link_tray=2, cross_tray=1, wind_anchors=2, pressure=7.894025)
        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Middle, 20, 100, self.c_p_matrix, self.q_z).almost_equal(expected, decimal=2)

    def test_ballast_blocks_exceeding_tray_capacity(self):
-        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=24, link_tray=2, cross_tray=3, wind_anchors=2, pressure=7.85)
+        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=22, link_tray=2, cross_tray=3, wind_anchors=2, pressure=7.704719)
        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Middle, 12, 100, self.c_p_matrix, self.q_z).almost_equal(expected, decimal=2)

    def test_when_max_system_pressure_is_lower_than_base_weight_pressure(self):
        max_system_pressure = 0
-        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=0, link_tray=0, cross_tray=0, wind_anchors=3, pressure=1.99)
+        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=0, link_tray=0, cross_tray=0, wind_anchors=3, pressure=2.289848)

        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Middle, 12, max_system_pressure, self.c_p_matrix, self.q_z).almost_equal(
                                  expected,
--- a/test/calculators/ballast/ballast_calculator_dual_tilt_96_cell_test.py
+++ b/test/calculators/ballast/ballast_calculator_dual_tilt_96_cell_test.py
@@ -49,22 +49,22 @@ class BallastCalculatorWhenDualTiltAnd96CellTest(unittest.TestCase):
            PanelType.Corner: {
                'anchors': [3, 2, 0, 0, 0],
                'ballast blocks': [2, 5, 20, 10, 0],
-                'pressure': ['3.48', '5.03', '12.90', '7.62', '2.40']
+                'pressure': ['3.48', '5.03', '12.91', '7.62', '2.39']
            },
            PanelType.NorthSouth: {
                'anchors': [2, 1, 0, 0, 0],
-                'ballast blocks': [11, 15, 17, 8, 0],
-                'pressure': ['8.24', '10.32', '11.35', '6.59', '2.40']
+                'ballast blocks': [12, 15, 17, 8, 0],
+                'pressure': ['8.75', '10.30', '11.34', '6.56', '2.37']
            },
            PanelType.EastWest: {
                'anchors': [2, 1, 0, 0, 0],
                'ballast blocks': [10, 14, 17, 8, 0],
-                'pressure': ['7.55', '9.63', '11.18', '6.46', '2.26']
+                'pressure': ['7.62', '9.69', '11.24', '6.52', '2.28']
            },
            PanelType.Middle: {
                'anchors': [2, 0, 0, 0, 0],
                'ballast blocks': [2, 22, 12, 5, 0],
-                'pressure': ['3.34', '13.83', '8.59', '4.85', '2.26']
+                'pressure': ['3.34', '13.87', '8.63', '4.85', '2.26']
            },
        }

@@ -90,15 +90,14 @@ class BallastCalculatorWhenDualTiltAnd96CellTest(unittest.TestCase):

        # Ballast, link tray, cross tray, anchor count, psf
        expected_value = [
-            Panel(wind_zone=2, panel_type=PanelType.Corner, ballast=20, link_tray=2, cross_tray=1, wind_anchors=0, pressure=12.90),
-            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, ballast=17, link_tray=2, cross_tray=1, wind_anchors=0, pressure=11.35),
-            Panel(wind_zone=4, panel_type=PanelType.EastWest, ballast=0, link_tray=0, cross_tray=0, wind_anchors=0, pressure=2.26),
-            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=47, link_tray=2, cross_tray=4, wind_anchors=0, pressure=27.07),
-            Panel(wind_zone=1, panel_type=PanelType.Middle, ballast=22, link_tray=2, cross_tray=2, wind_anchors=0, pressure=13.82),
-            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, ballast=8, link_tray=1, cross_tray=0, wind_anchors=0, pressure=6.59),
-            Panel(wind_zone=1, panel_type=PanelType.Corner, ballast=35, link_tray=2, cross_tray=3, wind_anchors=0, pressure=20.79)
+            Panel(wind_zone=2, panel_type=PanelType.Corner, ballast=20, link_tray=2, cross_tray=1, wind_anchors=0, pressure=12.910398406374503),
+            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, ballast=17, link_tray=2, cross_tray=1, wind_anchors=0, pressure=11.336414342629482),
+            Panel(wind_zone=4, panel_type=PanelType.EastWest, ballast=0, link_tray=0, cross_tray=0, wind_anchors=0, pressure=2.2788844621513946),
+            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=47, link_tray=2, cross_tray=4, wind_anchors=0, pressure=27.082988047808765),
+            Panel(wind_zone=1, panel_type=PanelType.Middle, ballast=22, link_tray=2, cross_tray=2, wind_anchors=0, pressure=13.874521912350598),
+            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, ballast=8, link_tray=1, cross_tray=0, wind_anchors=0, pressure=6.564223107569722),
+            Panel(wind_zone=1, panel_type=PanelType.Corner, ballast=35, link_tray=2, cross_tray=3, wind_anchors=0, pressure=20.8049203187251)
        ]
-
        assert_array_is_close(self.subject.ballast_and_trays_matrix(self.c_p_matrix, self.q_z, panels), expected_value, decimal=2)

    def test_update_ballast(self):
@@ -116,16 +115,19 @@ class BallastCalculatorWhenDualTiltAnd96CellTest(unittest.TestCase):
        ]

        expected_value = [
-            Panel(wind_zone=2, panel_type=PanelType.Corner, wind_anchors=0, seismic_anchors=1, ballast=5, link_tray=0, cross_tray=0, pressure=4.99),
-            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, wind_anchors=0, seismic_anchors=1, ballast=2, link_tray=0, cross_tray=0, pressure=3.43),
-            Panel(wind_zone=4, panel_type=PanelType.EastWest, wind_anchors=0, seismic_anchors=1, ballast=0, link_tray=0, cross_tray=0, pressure=2.26),
-            Panel(wind_zone=0, panel_type=PanelType.Corner, wind_anchors=3, seismic_anchors=0, ballast=2, link_tray=1, cross_tray=0, pressure=3.48),
-            Panel(wind_zone=1, panel_type=PanelType.Middle, wind_anchors=0, seismic_anchors=1, ballast=7, link_tray=2, cross_tray=0, pressure=5.94),
-            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, wind_anchors=0, seismic_anchors=1, ballast=0, link_tray=0, cross_tray=0, pressure=2.40),
-            Panel(wind_zone=1, panel_type=PanelType.Corner, wind_anchors=2, seismic_anchors=0, ballast=5, link_tray=1, cross_tray=0, pressure=5.03)
+            Panel(wind_zone=2, panel_type=PanelType.Corner, wind_anchors=0, seismic_anchors=1, ballast=5, link_tray=0, cross_tray=0, pressure=4.982729083665339),
+            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, wind_anchors=0, seismic_anchors=1, ballast=2, link_tray=0, cross_tray=0, pressure=3.408745019920319),
+            Panel(wind_zone=4, panel_type=PanelType.EastWest, wind_anchors=0, seismic_anchors=1, ballast=0, link_tray=0, cross_tray=0, pressure=2.2788844621513946),
+            Panel(wind_zone=0, panel_type=PanelType.Corner, wind_anchors=3, seismic_anchors=0, ballast=2, link_tray=1, cross_tray=0, pressure=3.4768525896414344),
+            Panel(wind_zone=1, panel_type=PanelType.Middle, wind_anchors=0, seismic_anchors=1, ballast=7, link_tray=2, cross_tray=0, pressure=5.98),
+            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, wind_anchors=0, seismic_anchors=1, ballast=0, link_tray=0, cross_tray=0, pressure=2.3728884462151396),
+            Panel(wind_zone=1, panel_type=PanelType.Corner, wind_anchors=2, seismic_anchors=0, ballast=5, link_tray=1, cross_tray=0, pressure=5.030637450199203)
        ]

        result = self.subject.update_ballast(self.c_p_matrix, self.q_z, panels)
+        print("===")
+        print(result)
+        print("===")
        assert_array_is_close(result, expected_value, decimal=2)

    def test_update_ballast_with_fuzzy_wind_zone(self):
@@ -143,13 +145,13 @@ class BallastCalculatorWhenDualTiltAnd96CellTest(unittest.TestCase):
        ]

        expected_value = [
-            Panel(wind_zone=2, panel_type=PanelType.Corner, wind_anchors=0, seismic_anchors=1, ballast=9, link_tray=2, cross_tray=0, pressure=7.15, fuzzy_wind_zone=True),
-            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, wind_anchors=0, seismic_anchors=1, ballast=5, link_tray=0, cross_tray=0, pressure=4.99, fuzzy_wind_zone=True),
-            Panel(wind_zone=4, panel_type=PanelType.EastWest, wind_anchors=0, seismic_anchors=1, ballast=0, link_tray=0, cross_tray=0, pressure=2.26, fuzzy_wind_zone=True),
-            Panel(wind_zone=0, panel_type=PanelType.Corner, wind_anchors=3, seismic_anchors=0, ballast=9, link_tray=2, cross_tray=0, pressure=7.15, fuzzy_wind_zone=True),
-            Panel(wind_zone=1, panel_type=PanelType.Middle, wind_anchors=0, seismic_anchors=1, ballast=11, link_tray=2, cross_tray=1, pressure=8.07, fuzzy_wind_zone=True),
-            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, wind_anchors=0, seismic_anchors=1, ballast=0, link_tray=0, cross_tray=0, pressure=2.40, fuzzy_wind_zone=True),
-            Panel(wind_zone=1, panel_type=PanelType.Corner, wind_anchors=2, seismic_anchors=0, ballast=11, link_tray=2, cross_tray=0, pressure=8.18, fuzzy_wind_zone=True)
+            Panel(wind_zone=2, panel_type=PanelType.Corner, wind_anchors=0, seismic_anchors=1, ballast=9, link_tray=2, cross_tray=0, pressure=7.150517928286853, fuzzy_wind_zone=True),
+            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, wind_anchors=0, seismic_anchors=1, ballast=5, link_tray=0, cross_tray=0, pressure=4.962529880478088, fuzzy_wind_zone=True),
+            Panel(wind_zone=4, panel_type=PanelType.EastWest, wind_anchors=0, seismic_anchors=1, ballast=0, link_tray=0, cross_tray=0, pressure=2.2788844621513946, fuzzy_wind_zone=True),
+            Panel(wind_zone=0, panel_type=PanelType.Corner, wind_anchors=3, seismic_anchors=0, ballast=9, link_tray=2, cross_tray=0, pressure=7.150517928286853, fuzzy_wind_zone=True),
+            Panel(wind_zone=1, panel_type=PanelType.Middle, wind_anchors=0, seismic_anchors=1, ballast=11, link_tray=2, cross_tray=1, pressure=8.114382470119523, fuzzy_wind_zone=True),
+            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, wind_anchors=0, seismic_anchors=1, ballast=0, link_tray=0, cross_tray=0, pressure=2.3728884462151396, fuzzy_wind_zone=True),
+            Panel(wind_zone=1, panel_type=PanelType.Corner, wind_anchors=2, seismic_anchors=0, ballast=11, link_tray=2, cross_tray=0, pressure=8.186374501992033, fuzzy_wind_zone=True)
        ]

        result = self.subject.update_ballast(self.c_p_matrix, self.q_z, panels)
@@ -192,15 +194,14 @@ class BallastCalculatorWhenDualTiltAnd96CellTest(unittest.TestCase):
        ]

        expected_value = [
-            Panel(wind_zone=2, panel_type=PanelType.Corner, ballast=20, link_tray=2, cross_tray=1, wind_anchors=0, pressure=12.90),
-            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, ballast=17, link_tray=2, cross_tray=1, wind_anchors=0, pressure=11.35),
-            Panel(wind_zone=4, panel_type=PanelType.EastWest, ballast=0, link_tray=0, cross_tray=0, wind_anchors=0, pressure=2.26),
-            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=2, link_tray=1, cross_tray=0, wind_anchors=3, pressure=3.48),
-            Panel(wind_zone=1, panel_type=PanelType.Middle, ballast=22, link_tray=2, cross_tray=2, wind_anchors=0, pressure=13.83),
-            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, ballast=8, link_tray=1, cross_tray=0, wind_anchors=0, pressure=6.59),
-            Panel(wind_zone=1, panel_type=PanelType.Corner, ballast=5, link_tray=1, cross_tray=0, wind_anchors=2, pressure=5.03)
+            Panel(wind_zone=2, panel_type=PanelType.Corner, ballast=20, link_tray=2, cross_tray=1, wind_anchors=0, pressure=12.910398406374503),
+            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, ballast=17, link_tray=2, cross_tray=1, wind_anchors=0, pressure=11.336414342629482),
+            Panel(wind_zone=4, panel_type=PanelType.EastWest, ballast=0, link_tray=0, cross_tray=0, wind_anchors=0, pressure=2.2788844621513946),
+            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=2, link_tray=1, cross_tray=0, wind_anchors=3, pressure=3.4768525896414344),
+            Panel(wind_zone=1, panel_type=PanelType.Middle, ballast=22, link_tray=2, cross_tray=2, wind_anchors=0, pressure=13.874521912350598),
+            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, ballast=8, link_tray=1, cross_tray=0, wind_anchors=0, pressure=6.564223107569722),
+            Panel(wind_zone=1, panel_type=PanelType.Corner, ballast=5, link_tray=1, cross_tray=0, wind_anchors=2, pressure=5.030637450199203)
        ]
-
        assert_array_is_close(self.subject.ballast_and_trays_matrix(self.c_p_matrix, self.q_z, panels), expected_value, decimal=2)

    def test_ballast_count_when_base_weight_greater_than_uplift(self):
@@ -212,11 +213,11 @@ class BallastCalculatorWhenDualTiltAnd96CellTest(unittest.TestCase):
    def test_individual_ballast_block_uplift_greater_than_base_weight(self):
        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Middle, 14, 100, self.c_p_matrix,
                                                          self.q_z).almost_equal(
-            Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=45, link_tray=2, cross_tray=4, wind_anchors=0, pressure=18.87),
+            Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=45, link_tray=2, cross_tray=4, wind_anchors=0, pressure=18.920438),
            decimal=2)
        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Middle, 20, 100, self.c_p_matrix,
                                                          self.q_z).almost_equal(
-            Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=32, link_tray=2, cross_tray=3, wind_anchors=0, pressure=19.07),
+            Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=32, link_tray=2, cross_tray=3, wind_anchors=0, pressure=19.116474),
            decimal=2)

    def test_ballast_blocks_exceeding_tray_capacity(self):
--- a/test/calculators/ballast/ballast_calculator_dual_tilt_pseries_test.py
+++ b/test/calculators/ballast/ballast_calculator_dual_tilt_pseries_test.py
@@ -48,23 +48,23 @@ class BallastCalculatorWhenDualTiltAndPSeriesTest(unittest.TestCase):
        expected_value = {
            PanelType.Corner: {
                'anchors': [4, 3, 0, 0, 0],
-                'ballast blocks': [15, 10, 33, 16, 0],
-                'pressure': ['8.43', '6.38', '15.93', '8.83', '2.12']
+                'ballast blocks': [14, 10, 32, 16, 0],
+                'pressure': ['8.26', '6.63', '15.76', '9.08', '2.39']
            },
            PanelType.NorthSouth: {
                'anchors': [4, 3, 0, 0, 0],
-                'ballast blocks': [5, 2, 28, 14, 0],
-                'pressure': ['4.22', '2.97', '13.77', '7.90', '2.10']
+                'ballast blocks': [4, 2, 27, 13, 0],
+                'pressure': ['4.08', '3.22', '13.63', '7.77', '2.37']
            },
            PanelType.EastWest: {
                'anchors': [4, 3, 0, 0, 0],
-                'ballast blocks': [6, 3, 28, 14, 0],
-                'pressure': ['4.58', '3.29', '13.72', '7.86', '2.01']
+                'ballast blocks': [5, 2, 27, 13, 0],
+                'pressure': ['4.49', '3.19', '13.63', '7.76', '2.30']
            },
            PanelType.Middle: {
                'anchors': [3, 2, 0, 0, 0],
-                'ballast blocks': [11, 10, 23, 11, 0],
-                'pressure': ['6.61', '6.20', '11.59', '6.61', '1.99']
+                'ballast blocks': [10, 10, 23, 11, 0],
+                'pressure': ['6.51', '6.51', '11.90', '6.92', '2.28']
            },
        }

@@ -104,27 +104,28 @@ class BallastCalculatorWhenDualTiltAndPSeriesTest(unittest.TestCase):
        expected_value = {
            PanelType.Corner: {
                'anchors': [0, 0, 0, 0, 0],
-                'ballast blocks': [8, 3, 0, 0, 0],
-                'pressure': ['4.79', '3.11', '2.12', '2.12', '2.12']
+                'ballast blocks': [7, 3, 0, 0, 0],
+                'pressure': ['4.68', '3.37', '2.39', '2.39', '2.39']
            },
            PanelType.NorthSouth: {
                'anchors': [0, 0, 0, 0, 0],
                'ballast blocks': [3, 0, 0, 0, 0],
-                'pressure': ['3.08', '2.10', '2.10', '2.10', '2.10']
+                'pressure': ['3.35', '2.37', '2.37', '2.37', '2.37']
            },
            PanelType.EastWest: {
                'anchors': [0, 0, 0, 0, 0],
-                'ballast blocks': [4, 0, 0, 0, 0],
-                'pressure': ['3.32', '2.01', '2.01', '2.01', '2.01']
+                'ballast blocks': [3, 0, 0, 0, 0],
+                'pressure': ['3.28', '2.30', '2.30', '2.30', '2.30']
            },
            PanelType.Middle: {
                'anchors': [0, 0, 0, 0, 0],
-                'ballast blocks': [1, 0, 0, 0, 0],
-                'pressure': ['2.32', '1.99', '1.99', '1.99', '1.99']
+                'ballast blocks': [0, 0, 0, 0, 0],
+                'pressure': ['2.28', '2.28', '2.28', '2.28', '2.28']
            },
        }

        received_table = self.subject.summary_table(self.c_p_matrix, self.q_z)
+        print("====\r\n", received_table)
        eq_(received_table.keys(), expected_value.keys())
        for key in expected_value.keys():
            received_table[key].pop('warnings')
@@ -143,20 +144,20 @@ class BallastCalculatorWhenDualTiltAndPSeriesTest(unittest.TestCase):
        self.values.ballast_block_weight.return_value = 20

        expected_value = [
-            Panel(wind_zone=2, panel_type=PanelType.Corner, ballast=33, link_tray=2, cross_tray=3, wind_anchors=0,
-                  pressure=15.93),
-            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, ballast=28, link_tray=2, cross_tray=2, wind_anchors=0,
-                  pressure=13.77),
+            Panel(wind_zone=2, panel_type=PanelType.Corner, ballast=32, link_tray=2, cross_tray=3, wind_anchors=0,
+                  pressure=15.764460),
+            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, ballast=27, link_tray=2, cross_tray=2, wind_anchors=0,
+                  pressure=13.630342),
            Panel(wind_zone=4, panel_type=PanelType.EastWest, ballast=0, link_tray=0, cross_tray=0, wind_anchors=0,
-                  pressure=2.01),
-            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=15, link_tray=2, cross_tray=1, wind_anchors=4,
-                  pressure=8.43, warnings=[PanelWarnings.MaxPsf]),
+                  pressure=2.299163),
+            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=14, link_tray=2, cross_tray=1, wind_anchors=4,
+                  pressure=8.263513, warnings=[PanelWarnings.MaxPsf]),
            Panel(wind_zone=1, panel_type=PanelType.Middle, ballast=40, link_tray=2, cross_tray=4, wind_anchors=0,
-                  pressure=18.68),
-            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, ballast=14, link_tray=2, cross_tray=0, wind_anchors=0,
-                  pressure=7.90),
+                  pressure=18.993076),
+            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, ballast=13, link_tray=2, cross_tray=0, wind_anchors=0,
+                  pressure=7.767559),
            Panel(wind_zone=1, panel_type=PanelType.Corner, ballast=10, link_tray=2, cross_tray=1, wind_anchors=3,
-                  pressure=6.38),
+                  pressure=6.625349),
            ]

        assert_array_is_close(self.subject.ballast_and_trays_matrix(self.c_p_matrix, self.q_z, raw_data),
@@ -178,19 +179,19 @@ class BallastCalculatorWhenDualTiltAndPSeriesTest(unittest.TestCase):

        expected = [
            Panel(wind_zone=2, panel_type=PanelType.Corner, wind_anchors=0, seismic_anchors=1,
-                  ballast=18, link_tray=2, cross_tray=1, pressure=9.65),
+                  ballast=17, link_tray=2, cross_tray=1, pressure=9.492135463546356),
            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, wind_anchors=0, seismic_anchors=1,
-                  ballast=13, link_tray=2, cross_tray=0, pressure=7.50),
+                  ballast=12, link_tray=2, cross_tray=0, pressure=7.358017551755176),
            Panel(wind_zone=4, panel_type=PanelType.EastWest, wind_anchors=0, seismic_anchors=1,
-                  ballast=0, link_tray=0, cross_tray=0, pressure=2.01),
+                  ballast=0, link_tray=0, cross_tray=0, pressure=2.299162916291629),
            Panel(wind_zone=0, panel_type=PanelType.Corner, wind_anchors=4, seismic_anchors=0,
-                  ballast=15, link_tray=2, cross_tray=1, pressure=8.43),
+                  ballast=14, link_tray=2, cross_tray=1, pressure=8.263512601260127),
            Panel(wind_zone=1, panel_type=PanelType.Middle, wind_anchors=0, seismic_anchors=1,
-                  ballast=25, link_tray=2, cross_tray=3, pressure=12.47),
+                  ballast=24, link_tray=2, cross_tray=3, pressure=12.375918091809181),
            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, wind_anchors=0, seismic_anchors=1,
-                  ballast=0, link_tray=0, cross_tray=0, pressure=2.10),
+                  ballast=0, link_tray=0, cross_tray=0, pressure=2.3677610261026105),
            Panel(wind_zone=1, panel_type=PanelType.Corner, wind_anchors=3, seismic_anchors=0,
-                  ballast=10, link_tray=2, cross_tray=1, pressure=6.38),
+                  ballast=10, link_tray=2, cross_tray=1, pressure=6.625348784878488),
        ]

        result = self.subject.update_ballast(self.c_p_matrix, self.q_z, panels)
@@ -234,13 +235,13 @@ class BallastCalculatorWhenDualTiltAndPSeriesTest(unittest.TestCase):
        ]

        expected_value = [
-            Panel(wind_zone=2, panel_type=PanelType.Corner, ballast=33, link_tray=2, cross_tray=3, wind_anchors=0, pressure=15.93),
-            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, ballast=28, link_tray=2, cross_tray=2, wind_anchors=0, pressure=13.77),
-            Panel(wind_zone=4, panel_type=PanelType.EastWest, ballast=0, link_tray=0, cross_tray=0, wind_anchors=0, pressure=2.01),
-            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=15, link_tray=2, cross_tray=1, wind_anchors=4, pressure=8.43, warnings=[PanelWarnings.MaxPsf]),
-            Panel(wind_zone=1, panel_type=PanelType.Middle, ballast=10, link_tray=2, cross_tray=1, wind_anchors=2, pressure=6.20),
-            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, ballast=14, link_tray=2, cross_tray=0, wind_anchors=0, pressure=7.90),
-            Panel(wind_zone=1, panel_type=PanelType.Corner, ballast=10, link_tray=2, cross_tray=1, wind_anchors=3, pressure=6.38)
+            Panel(wind_zone=2, panel_type=PanelType.Corner, ballast=32, link_tray=2, cross_tray=3, wind_anchors=0, pressure=15.764460),
+            Panel(wind_zone=2, panel_type=PanelType.NorthSouth, ballast=27, link_tray=2, cross_tray=2, wind_anchors=0, pressure=13.630342),
+            Panel(wind_zone=4, panel_type=PanelType.EastWest, ballast=0, link_tray=0, cross_tray=0, wind_anchors=0, pressure=2.299163),
+            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=14, link_tray=2, cross_tray=1, wind_anchors=4, pressure= 8.263513, warnings=[PanelWarnings.MaxPsf]),
+            Panel(wind_zone=1, panel_type=PanelType.Middle, ballast=10, link_tray=2, cross_tray=1, wind_anchors=2, pressure=6.513135),
+            Panel(wind_zone=3, panel_type=PanelType.NorthSouth, ballast=13, link_tray=2, cross_tray=0, wind_anchors=0, pressure=7.767559),
+            Panel(wind_zone=1, panel_type=PanelType.Corner, ballast=10, link_tray=2, cross_tray=1, wind_anchors=3, pressure=6.625349)
        ]

        assert_array_is_close(self.subject.ballast_and_trays_matrix(self.c_p_matrix, self.q_z, panel_data), expected_value, decimal=2)
@@ -272,28 +273,28 @@ class BallastCalculatorWhenDualTiltAndPSeriesTest(unittest.TestCase):
        self.q_z = 18.43072
        self.subject = BallastCalculator(self.values)

-        expected = Panel(wind_zone=0, panel_type=PanelType.NorthSouth, ballast=3, link_tray=0, cross_tray=0, wind_anchors=0, pressure=3.08)
+        expected = Panel(wind_zone=0, panel_type=PanelType.NorthSouth, ballast=3, link_tray=0, cross_tray=0, wind_anchors=0, pressure=3.350659)
        received = self.subject.ballast_tray_and_anchor_count(0, PanelType.NorthSouth, 16, 8, self.c_p_matrix, self.q_z)
        assert received.almost_equal(expected, decimal=2)

    def test_ballast_count_when_base_weight_greater_than_uplift(self):
-        expected = Panel(wind_zone=4, panel_type=PanelType.Middle, ballast=0, link_tray=0, cross_tray=0, wind_anchors=0, pressure=1.99)
+        expected = Panel(wind_zone=4, panel_type=PanelType.Middle, ballast=0, link_tray=0, cross_tray=0, wind_anchors=0, pressure=2.277252)
        assert self.subject.ballast_tray_and_anchor_count(4, PanelType.Middle, 14, 100, self.c_p_matrix, self.q_z).almost_equal(expected, decimal=2)

    def test_individual_ballast_block_uplift_greater_than_base_weight(self):
-        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=15, link_tray=2, cross_tray=2, wind_anchors=3, pressure=6.47)
+        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=14, link_tray=2, cross_tray=2, wind_anchors=3, pressure=6.495729)
        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Middle, 14, 100, self.c_p_matrix, self.q_z).almost_equal(expected, decimal=2)

-        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=11, link_tray=2, cross_tray=1, wind_anchors=3, pressure=6.61)
+        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=10, link_tray=2, cross_tray=1, wind_anchors=3, pressure=6.513135)
        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Middle, 20, 100, self.c_p_matrix, self.q_z).almost_equal(expected, decimal=2)

    def test_ballast_blocks_exceeding_tray_capacity(self):
-        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=18, link_tray=2, cross_tray=2, wind_anchors=3, pressure=6.59)
+        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=17, link_tray=2, cross_tray=2, wind_anchors=3, pressure=6.659545)
        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Middle, 12, 100, self.c_p_matrix, self.q_z).almost_equal(expected, decimal=2)

    def test_when_max_system_pressure_is_lower_than_base_weight_pressure(self):
        max_system_pressure = 0
-        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=0, link_tray=0, cross_tray=0, wind_anchors=4, pressure=1.99)
+        expected = Panel(wind_zone=0, panel_type=PanelType.Middle, ballast=0, link_tray=0, cross_tray=0, wind_anchors=4, pressure=2.277252)

        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Middle, 12, max_system_pressure, self.c_p_matrix, self.q_z).almost_equal(
                                  expected,
--- a/test/calculators/ballast/ballast_calculator_single_tilt_128_cell_test.py
+++ b/test/calculators/ballast/ballast_calculator_single_tilt_128_cell_test.py
@@ -54,23 +54,23 @@ class BallastCalculatorWhenSingleTiltAnd128CellTest(unittest.TestCase):
        expected_value = {
            PanelType.Corner: {
                'anchors': [7, 5, 3, 3, 2, 2, 0, 2, 7, 4, 0],
-                'ballast blocks': [9, 14, 5, 5, 3, 1, 13, 11, 11, 8, 11],
-                'pressure': ['7.43', '10.31', '4.95', '4.95', '3.79', '2.64', '9.55', '8.49', '8.58', '6.76', '8.40']
+                'ballast blocks': [10, 15, 5, 6, 3, 1, 13, 11, 12, 9, 11],
+                'pressure': ['7.89', '10.77', '4.83', '5.41', '3.68', '2.53', '9.53', '8.38', '9.04', '7.23', '8.29']
            },
            PanelType.NorthSouth: {
                'anchors': [6, 5, 3, 2, 0, 1, 0, 2, 6, 4, 0],
                'ballast blocks': [14, 6, 1, 15, 19, 13, 12, 6, 12, 1, 10],
-                'pressure': ['10.13', '5.44', '2.47', '10.71', '13.01', '9.46', '8.89', '5.35', '8.98', '2.47', '7.65']
+                'pressure': ['10.11', '5.41', '2.45', '10.68', '12.98', '9.44', '8.87', '5.32', '8.96', '2.45', '7.62']
            },
            PanelType.EastWest: {
                'anchors': [5, 4, 2, 2, 1, 0, 0, 2, 6, 1, 0],
-                'ballast blocks': [11, 7, 2, 1, 15, 21, 12, 6, 11, 14, 6],
-                'pressure': ['8.49', '6.19', '3.16', '2.58', '10.79', '14.25', '8.98', '5.52', '8.58', '10.22', '5.46']
+                'ballast blocks': [12, 7, 2, 1, 15, 21, 12, 6, 12, 14, 6],
+                'pressure': ['8.94', '6.07', '3.05', '2.47', '10.67', '14.12', '8.85', '5.40', '9.03', '10.09', '5.35']
            },
            PanelType.Middle: {
                'anchors': [5, 4, 2, 1, 0, 0, 0, 2, 6, 1, 0],
                'ballast blocks': [9, 5, 2, 15, 18, 20, 12, 5, 7, 13, 6],
-                'pressure': ['7.21', '4.91', '3.02', '10.66', '12.39', '13.63', '8.93', '4.82', '6.06', '9.51', '5.32']
+                'pressure': ['7.14', '4.84', '2.97', '10.59', '12.32', '13.56', '8.87', '4.75', '5.99', '9.44', '5.27']
            },
        }

@@ -96,21 +96,21 @@ class BallastCalculatorWhenSingleTiltAnd128CellTest(unittest.TestCase):

        expected_value = [
            Panel(wind_zone=5, panel_type=PanelType.Corner, ballast=1, link_tray=0, cross_tray=0, wind_anchors=2,
-                  pressure=2.64),
+                  pressure=2.532134),
            Panel(wind_zone=6, panel_type=PanelType.NorthSouth, ballast=12, link_tray=0, cross_tray=1, wind_anchors=0,
-                  pressure=8.89),
+                  pressure=8.866209),
            Panel(wind_zone=7, panel_type=PanelType.EastWest, ballast=6, link_tray=2, cross_tray=0, wind_anchors=2,
-                  pressure=5.52, warnings=[PanelWarnings.MaxPsf]),
-            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=9, link_tray=0, cross_tray=2, wind_anchors=7,
-                  pressure=7.43, warnings=[PanelWarnings.MaxPsf]),
+                  pressure=5.400562, warnings=[PanelWarnings.MaxPsf]),
+            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=10, link_tray=0, cross_tray=2, wind_anchors=7,
+                  pressure=7.891559, warnings=[PanelWarnings.MaxPsf]),
            Panel(wind_zone=8, panel_type=PanelType.Middle, ballast=7, link_tray=1, cross_tray=1, wind_anchors=6,
-                  pressure=6.06, warnings=[PanelWarnings.MaxPsf]),
+                  pressure=5.991164, warnings=[PanelWarnings.MaxPsf]),
            Panel(wind_zone=9, panel_type=PanelType.NorthSouth, ballast=1, link_tray=0, cross_tray=0, wind_anchors=4,
-                  pressure=2.47, warnings=[PanelWarnings.MaxPsf]),
-            Panel(wind_zone=6, panel_type=PanelType.Corner, ballast=13, link_tray=0, cross_tray=0, wind_anchors=0,
-                  pressure=9.55),
+                  pressure=2.446694, warnings=[PanelWarnings.MaxPsf]),
+            Panel(wind_zone=6, panel_type=PanelType.Corner, ballast=13, link_tray=0, cross_tray=1, wind_anchors=0,
+                  pressure=9.527003),
            Panel(wind_zone=6, panel_type=PanelType.EastWest, ballast=12, link_tray=2, cross_tray=0, wind_anchors=0,
-                  pressure=8.98)
+                  pressure=8.852688)
            ]

        assert_array_is_close(self.subject.ballast_and_trays_matrix(self.c_p_matrix, self.q_z, panels),
@@ -169,19 +169,19 @@ class BallastCalculatorWhenSingleTiltAnd128CellTest(unittest.TestCase):

        expected_value = [
            Panel(wind_zone=7, panel_type=PanelType.Corner, ballast=11, link_tray=0, cross_tray=1,
-                  wind_anchors=2, pressure=8.49, warnings=[PanelWarnings.MaxPsf]),
+                  wind_anchors=2, pressure=8.376295, warnings=[PanelWarnings.MaxPsf]),
            Panel(wind_zone=7, panel_type=PanelType.NorthSouth, ballast=6, link_tray=0, cross_tray=0,
-                  wind_anchors=2, pressure=5.35, warnings=[PanelWarnings.MaxPsf]),
+                  wind_anchors=2, pressure=5.323465, warnings=[PanelWarnings.MaxPsf]),
            Panel(wind_zone=9, panel_type=PanelType.EastWest, ballast=29, link_tray=2, cross_tray=2,
-                  wind_anchors=0, pressure=18.94),
+                  wind_anchors=0, pressure=18.814946),
            Panel(wind_zone=5, panel_type=PanelType.Corner, ballast=1, link_tray=0, cross_tray=0,
-                  wind_anchors=2, pressure=2.64),
+                  wind_anchors=2, pressure=2.532134),
            Panel(wind_zone=6, panel_type=PanelType.Middle, ballast=12, link_tray=1, cross_tray=1,
-                  wind_anchors=0, pressure=8.93),
+                  wind_anchors=0, pressure=8.867935),
            Panel(wind_zone=8, panel_type=PanelType.NorthSouth, ballast=12, link_tray=0, cross_tray=2,
-                  wind_anchors=6, pressure=8.98, warnings=[PanelWarnings.MaxPsf]),
-            Panel(wind_zone=6, panel_type=PanelType.Corner, ballast=13, link_tray=0, cross_tray=0,
-                  wind_anchors=0, pressure=9.55)
+                  wind_anchors=6, pressure=8.956827, warnings=[PanelWarnings.MaxPsf]),
+            Panel(wind_zone=6, panel_type=PanelType.Corner, ballast=13, link_tray=0, cross_tray=1,
+                  wind_anchors=0, pressure=9.527003)
        ]

        assert_array_is_close(self.subject.ballast_and_trays_matrix(self.c_p_matrix, self.q_z, panel_data),
@@ -213,41 +213,41 @@ class BallastCalculatorWhenSingleTiltAnd128CellTest(unittest.TestCase):
        self.q_z = 18.446284

        expected = Panel(wind_zone=10, panel_type=PanelType.Middle, ballast=0, link_tray=0, cross_tray=0,
-                         wind_anchors=0, pressure=1.87)
+                         wind_anchors=0, pressure=1.819845)

        assert self.subject.ballast_tray_and_anchor_count(10, PanelType.Middle, 14, 1000, self.c_p_matrix,
                                                          self.q_z).almost_equal(expected, decimal=2)

    def test_individual_ballast_block_uplift_greater_than_base_weight(self):
-        expected = Panel(wind_zone=6, panel_type=PanelType.Middle, ballast=16, link_tray=1, cross_tray=1,
-                         wind_anchors=0, pressure=8.47)
+        expected = Panel(wind_zone=6, panel_type=PanelType.Middle, ballast=17, link_tray=1, cross_tray=1,
+                         wind_anchors=0, pressure=8.810399)
        assert self.subject.ballast_tray_and_anchor_count(6, PanelType.Middle, 14, 1000, self.c_p_matrix,
                                                          self.q_z).almost_equal(expected, decimal=2)

        expected = Panel(wind_zone=6, panel_type=PanelType.Middle, ballast=12, link_tray=1, cross_tray=1,
-                         wind_anchors=0, pressure=8.93)
+                         wind_anchors=0, pressure=8.867935)
        assert self.subject.ballast_tray_and_anchor_count(6, PanelType.Middle, 20, 1000, self.c_p_matrix,
                                                          self.q_z).almost_equal(expected, decimal=2)

    def test_ballast_blocks_exceeding_tray_capacity(self):
-        expected = Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=9, link_tray=0, cross_tray=2,
-                         wind_anchors=7, pressure=7.43, warnings=[PanelWarnings.MaxPsf])
+        expected = Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=10, link_tray=0, cross_tray=2,
+                         wind_anchors=7, pressure=7.891559, warnings=[PanelWarnings.MaxPsf])
        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Corner, 20, 1000, self.c_p_matrix,
                                                          self.q_z).almost_equal(expected, decimal=2)

        expected = Panel(wind_zone=8, panel_type=PanelType.Middle, ballast=7, link_tray=1, cross_tray=1,
-                         wind_anchors=6, pressure=6.06, warnings=[PanelWarnings.MaxPsf])
+                         wind_anchors=6, pressure=5.991164, warnings=[PanelWarnings.MaxPsf])
        assert self.subject.ballast_tray_and_anchor_count(8, PanelType.Middle, 20, 1000, self.c_p_matrix,
                                                          self.q_z).almost_equal(expected, decimal=2)

    def test_ballast_blocks_when_panel_exceeds_max_system_pressure(self):
        expected = Panel(wind_zone=5, panel_type=PanelType.Middle, ballast=7, link_tray=1, cross_tray=0,
-                         wind_anchors=1, pressure=4.76)
+                         wind_anchors=1, pressure=4.692301)
        assert self.subject.ballast_tray_and_anchor_count(5, PanelType.Middle, 14, 10, self.c_p_matrix,
                                                          self.q_z).almost_equal(expected, decimal=2)

-        expected = Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=13, link_tray=0, cross_tray=2,
-                         wind_anchors=7, pressure=7.49, warnings=[PanelWarnings.MaxPsf])
+        expected = Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=14, link_tray=0, cross_tray=2,
+                         wind_anchors=7, pressure=7.776488, warnings=[PanelWarnings.MaxPsf])
        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Corner, 14, 10, self.c_p_matrix,
                                                          self.q_z).almost_equal(expected, decimal=2)

@@ -255,7 +255,7 @@ class BallastCalculatorWhenSingleTiltAnd128CellTest(unittest.TestCase):
        max_system_pressure = 0

        expected = Panel(wind_zone=5, panel_type=PanelType.Middle, ballast=0, link_tray=0, cross_tray=0,
-                         wind_anchors=2, pressure=1.87)
+                         wind_anchors=2, pressure=1.819845)
        assert self.subject.ballast_tray_and_anchor_count(5, PanelType.Middle, 12, max_system_pressure,
                                                          self.c_p_matrix, self.q_z).almost_equal(
            expected,
--- a/test/calculators/ballast/ballast_calculator_single_tilt_96_cell_test.py
+++ b/test/calculators/ballast/ballast_calculator_single_tilt_96_cell_test.py
@@ -54,24 +54,23 @@ class BallastCalculatorWhenSingleTiltAnd96CellTest(unittest.TestCase):
        expected_value = {
            PanelType.Corner: {
                'anchors': [5, 4, 2, 2, 1, 1, 0, 2, 6, 3, 0],
-                'ballast blocks': [14, 10, 9, 9, 11, 10, 10, 2, 2, 9, 8],
-                'pressure': ['12.93', '9.79', '9.03', '9.03', '10.56', '9.70', '9.70', '3.60', '3.69', '9.03', '8.18']
+                'ballast blocks': [14, 10, 9, 10, 11, 10, 11, 2, 2, 9, 8],
+                'pressure': ['12.81', '9.67', '8.90', '9.67', '10.43', '9.58', '10.34', '3.47', '3.57', '8.90', '8.05']
            },
            PanelType.NorthSouth: {
                'anchors': [5, 4, 2, 2, 0, 1, 0, 1, 5, 3, 0],
                'ballast blocks': [5, 2, 5, 5, 15, 7, 9, 13, 3, 2, 7],
-                'pressure': ['5.79', '3.50', '5.70', '5.70', '13.41', '7.23', '8.84', '11.89', '4.26', '3.41', '7.23']
+                'pressure': ['5.74', '3.45', '5.74', '5.65', '13.37', '7.17', '8.79', '11.84', '4.22', '3.36', '7.17']
            },
            PanelType.EastWest: {
                'anchors': [4, 3, 1, 1, 1, 0, 0, 1, 5, 1, 0],
                'ballast blocks': [6, 6, 10, 9, 8, 16, 9, 13, 3, 7, 4],
-                'pressure': ['6.79', '6.70', '9.75', '8.99', '8.23', '14.42', '8.99', '12.13', '4.41', '7.46', '5.09']
+                'pressure': ['6.62', '6.52', '9.57', '8.81', '8.05', '14.24', '8.81', '11.96', '4.24', '7.29', '4.93']
            },
            PanelType.Middle: {
                'anchors': [3, 2, 1, 0, 0, 0, 0, 1, 3, 0, 0],
-                'ballast blocks': [11, 13, 6, 19, 12, 13, 8, 7, 15, 18, 3],
-                'pressure': ['10.42', '11.95', '6.52', '16.61', '11.19', '11.95', '8.05', '7.29', '13.56', '15.76',
-                             '4.15']
+                'ballast blocks': [11, 13, 6, 19, 12, 13, 8, 8, 15, 18, 3],
+                'pressure': ['10.40', '11.92', '6.49', '16.59', '11.16', '11.92', '8.02', '8.02', '13.54', '15.73', '4.13']
            },
        }

@@ -96,14 +95,14 @@ class BallastCalculatorWhenSingleTiltAnd96CellTest(unittest.TestCase):
        self.values.ballast_block_weight.return_value = 20

        expected_value = [
-            Panel(wind_zone=5, panel_type=PanelType.Corner, ballast=25, link_tray=0, cross_tray=2, wind_anchors=0, pressure=21.32),
-            Panel(wind_zone=6, panel_type=PanelType.NorthSouth, ballast=9, link_tray=0, cross_tray=1, wind_anchors=0, pressure=8.84),
-            Panel(wind_zone=7, panel_type=PanelType.EastWest, ballast=28, link_tray=2, cross_tray=2, wind_anchors=0, pressure=23.65),
-            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=14, link_tray=0, cross_tray=2, wind_anchors=5, pressure=12.93, warnings=[PanelWarnings.MaxPsf]),
-            Panel(wind_zone=8, panel_type=PanelType.Middle, ballast=15, link_tray=1, cross_tray=2, wind_anchors=3, pressure=13.56, warnings=[PanelWarnings.MaxPsf]),
-            Panel(wind_zone=9, panel_type=PanelType.NorthSouth, ballast=2, link_tray=0, cross_tray=0, wind_anchors=3, pressure=3.41, warnings=[PanelWarnings.MaxPsf]),
-            Panel(wind_zone=6, panel_type=PanelType.Corner, ballast=10, link_tray=0, cross_tray=0, wind_anchors=0, pressure=9.70),
-            Panel(wind_zone=6, panel_type=PanelType.EastWest, ballast=9, link_tray=2, cross_tray=0, wind_anchors=0, pressure=8.99)
+            Panel(wind_zone=5, panel_type=PanelType.Corner, ballast=25, link_tray=0, cross_tray=2, wind_anchors=0, pressure=21.200142),
+            Panel(wind_zone=6, panel_type=PanelType.NorthSouth, ballast=9, link_tray=0, cross_tray=1, wind_anchors=0, pressure=8.791605),
+            Panel(wind_zone=7, panel_type=PanelType.EastWest, ballast=28, link_tray=2, cross_tray=2, wind_anchors=0, pressure=23.487752),
+            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=14, link_tray=0, cross_tray=2, wind_anchors=5, pressure=12.810842, warnings=[PanelWarnings.MaxPsf]),
+            Panel(wind_zone=8, panel_type=PanelType.Middle, ballast=15, link_tray=1, cross_tray=2, wind_anchors=3, pressure=13.538805, warnings=[PanelWarnings.MaxPsf]),
+            Panel(wind_zone=9, panel_type=PanelType.NorthSouth, ballast=2, link_tray=0, cross_tray=0, wind_anchors=3, pressure=3.360677, warnings=[PanelWarnings.MaxPsf]),
+            Panel(wind_zone=6, panel_type=PanelType.Corner, ballast=11, link_tray=0, cross_tray=0, wind_anchors=0, pressure=10.337906),
+            Panel(wind_zone=6, panel_type=PanelType.EastWest, ballast=9, link_tray=2, cross_tray=0, wind_anchors=0, pressure=8.812197)
        ]

        assert_array_is_close(self.subject.ballast_and_trays_matrix(self.c_p_matrix, self.q_z, panels), expected_value, decimal=2)
@@ -160,13 +159,13 @@ class BallastCalculatorWhenSingleTiltAnd96CellTest(unittest.TestCase):
        ]

        expected_value = array([
-            Panel(wind_zone=7, panel_type=PanelType.Corner, ballast=2, link_tray=0, cross_tray=0, wind_anchors=2, pressure=3.60),
-            Panel(wind_zone=7, panel_type=PanelType.NorthSouth, ballast=13, link_tray=0, cross_tray=1, wind_anchors=1, pressure=11.89),
-            Panel(wind_zone=9, panel_type=PanelType.EastWest, ballast=22, link_tray=2, cross_tray=1, wind_anchors=0, pressure=18.99),
-            Panel(wind_zone=5, panel_type=PanelType.Corner, ballast=25, link_tray=0, cross_tray=2, wind_anchors=0, pressure=21.32),
-            Panel(wind_zone=6, panel_type=PanelType.Middle, ballast=8, link_tray=1, cross_tray=0, wind_anchors=0, pressure=8.05),
-            Panel(wind_zone=8, panel_type=PanelType.NorthSouth, ballast=3, link_tray=0, cross_tray=1, wind_anchors=5, pressure=4.26, warnings=[PanelWarnings.MaxPsf]),
-            Panel(wind_zone=6, panel_type=PanelType.Corner, ballast=10, link_tray=0, cross_tray=0, wind_anchors=0, pressure=9.70),
+            Panel(wind_zone=7, panel_type=PanelType.Corner, ballast=2, link_tray=0, cross_tray=0, wind_anchors=2, pressure=3.473933),
+            Panel(wind_zone=7, panel_type=PanelType.NorthSouth, ballast=13, link_tray=0, cross_tray=1, wind_anchors=1, pressure=11.842260),
+            Panel(wind_zone=9, panel_type=PanelType.EastWest, ballast=22, link_tray=2, cross_tray=1, wind_anchors=0, pressure=18.819488),
+            Panel(wind_zone=5, panel_type=PanelType.Corner, ballast=25, link_tray=0, cross_tray=2, wind_anchors=0, pressure=21.200142),
+            Panel(wind_zone=6, panel_type=PanelType.Middle, ballast=8, link_tray=1, cross_tray=0, wind_anchors=0, pressure=8.015213),
+            Panel(wind_zone=8, panel_type=PanelType.NorthSouth, ballast=3, link_tray=0, cross_tray=1, wind_anchors=5, pressure=4.215623, warnings=[PanelWarnings.MaxPsf]),
+            Panel(wind_zone=6, panel_type=PanelType.Corner, ballast=11, link_tray=0, cross_tray=0, wind_anchors=0, pressure=10.337906),
        ])

        assert_array_is_close(self.subject.ballast_and_trays_matrix(self.c_p_matrix, self.q_z, panels), expected_value, decimal=2)
@@ -175,43 +174,43 @@ class BallastCalculatorWhenSingleTiltAnd96CellTest(unittest.TestCase):
        assert self.subject.ballast_tray_and_anchor_count(10, PanelType.Middle, 14, 1000, self.c_p_matrix,
                                                          30.155851).almost_equal(
            Panel(wind_zone=10, panel_type=PanelType.Middle, ballast=0, link_tray=0, cross_tray=0,
-                  wind_anchors=0, pressure=1.86),
+                  wind_anchors=0, pressure=1.842977),
            decimal=2)

    def test_individual_ballast_block_uplift_greater_than_base_weight(self):
        assert self.subject.ballast_tray_and_anchor_count(6, PanelType.Middle, 14, 1000, self.c_p_matrix,
                                                          self.q_z).almost_equal(
            Panel(wind_zone=6, panel_type=PanelType.Middle, ballast=11, link_tray=1, cross_tray=1,
-                  wind_anchors=0, pressure=7.91),
+                  wind_anchors=0, pressure=7.878697),
            decimal=2)
        assert self.subject.ballast_tray_and_anchor_count(6, PanelType.Middle, 20, 1000, self.c_p_matrix,
                                                          self.q_z).almost_equal(
            Panel(wind_zone=6, panel_type=PanelType.Middle, ballast=8, link_tray=1, cross_tray=0,
-                  wind_anchors=0, pressure=8.05),
+                  wind_anchors=0, pressure=8.015213),
            decimal=2)

    def test_ballast_blocks_exceeding_tray_capacity(self):
        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Corner, 20, 1000, self.c_p_matrix,
                                                          self.q_z).almost_equal(
            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=14, link_tray=0, cross_tray=2,
-                  wind_anchors=5, pressure=12.93, warnings=[PanelWarnings.MaxPsf]),
+                  wind_anchors=5, pressure=12.810842, warnings=[PanelWarnings.MaxPsf]),
            decimal=2)
        assert self.subject.ballast_tray_and_anchor_count(8, PanelType.Middle, 20, 1000, self.c_p_matrix,
                                                          self.q_z).almost_equal(
            Panel(wind_zone=8, panel_type=PanelType.Middle, ballast=15, link_tray=1, cross_tray=2,
-                  wind_anchors=3, pressure=13.56, warnings=[PanelWarnings.MaxPsf]),
+                  wind_anchors=3, pressure=13.538805, warnings=[PanelWarnings.MaxPsf]),
            decimal=2)

    def test_ballast_blocks_when_panel_exceeds_max_system_pressure(self):
        assert self.subject.ballast_tray_and_anchor_count(5, PanelType.Middle, 14, 10, self.c_p_matrix,
                                                          self.q_z).almost_equal(
            Panel(wind_zone=5, panel_type=PanelType.Middle, ballast=0, link_tray=0, cross_tray=0,
-                  wind_anchors=1, pressure=1.86),
+                  wind_anchors=1, pressure=1.842977),
            decimal=2)
        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Corner, 14, 10, self.c_p_matrix,
                                                          self.q_z).almost_equal(
            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=0, link_tray=0, cross_tray=0,
-                  wind_anchors=6, pressure=2.08, warnings=[PanelWarnings.MaxPsf]),
+                  wind_anchors=6, pressure=1.948606, warnings=[PanelWarnings.MaxPsf]),
            decimal=2)

    def test_when_max_system_pressure_is_lower_than_base_weight_pressure(self):
@@ -220,7 +219,7 @@ class BallastCalculatorWhenSingleTiltAnd96CellTest(unittest.TestCase):
        assert self.subject.ballast_tray_and_anchor_count(5, PanelType.Middle, 12, max_system_pressure, self.c_p_matrix,
                                                          self.q_z).almost_equal(
            Panel(wind_zone=5, panel_type=PanelType.Middle, ballast=0, link_tray=0, cross_tray=0,
-                  wind_anchors=1, pressure=1.86),
+                  wind_anchors=1, pressure=1.842977),
            decimal=2)

    def test_uplift(self):
--- a/test/calculators/ballast/ballast_calculator_single_tilt_pseries_test.py
+++ b/test/calculators/ballast/ballast_calculator_single_tilt_pseries_test.py
@@ -55,27 +55,27 @@ class BallastCalculatorWhenSingleTiltAndPSeriesTest(unittest.TestCase):
            PanelType.Corner: {
                'anchors': [7, 5, 3, 3, 2, 1, 0, 2, 7, 4, 0],
                'ballast blocks': [5, 11, 3, 4, 2, 15, 13, 9, 7, 6, 11],
-                'pressure': ['5.13', '8.75', '3.83', '4.43', '3.22', '11.16', '9.86', '7.45', '6.33', '5.73', '8.65']
+                'pressure': ['5.07', '8.69', '3.77', '4.37', '3.17', '11.10', '9.80', '7.39', '6.37', '5.67', '8.59']
            },
            PanelType.NorthSouth: {
                'anchors': [6, 5, 2, 2, 0, 1, 0, 2, 6, 3, 0],
                'ballast blocks': [10, 3, 15, 14, 18, 12, 12, 5, 8, 14, 9],
-                'pressure': ['8.06', '3.74', '11.07', '10.37', '12.88', '9.17', '9.17', '4.85', '6.85', '10.47', '7.26']
+                'pressure': ['8.09', '3.78', '11.11', '10.41', '12.82', '9.20', '9.20', '4.89', '6.89', '10.50', '7.30']
            },
            PanelType.EastWest: {
                'anchors': [5, 4, 2, 1, 1, 0, 0, 2, 6, 1, 0],
                'ballast blocks': [8, 5, 1, 15, 14, 20, 12, 5, 8, 13, 6],
-                'pressure': ['6.94', '5.04', '2.56', '11.16', '10.56', '14.18', '9.26', '5.04', '6.94', '9.96', '5.57']
+                'pressure': ['6.87', '4.97', '2.50', '11.09', '10.49', '14.11', '9.19', '4.97', '6.87', '9.89', '5.51']
            },
            PanelType.Middle: {
                'anchors': [5, 4, 1, 1, 0, 0, 0, 2, 6, 1, 0],
                'ballast blocks': [6, 3, 15, 14, 18, 20, 11, 4, 4, 12, 6],
-                'pressure': ['5.60', '3.69', '11.02', '10.42', '12.83', '14.13', '8.51', '4.29', '4.39', '9.21', '5.43']
+                'pressure': ['5.59', '3.68', '11.01', '10.41', '12.82', '14.12', '8.60', '4.29', '4.38', '9.20', '5.44']
            },
        }

        received_table = self.subject.summary_table(self.c_p_matrix, self.q_z)
-
+        print("===\r\n",received_table)
        eq_(received_table.keys(), expected_value.keys())
        for key in expected_value.keys():
            received_table[key].pop('warnings')
@@ -97,21 +97,21 @@ class BallastCalculatorWhenSingleTiltAndPSeriesTest(unittest.TestCase):

        expected_value = [
            Panel(wind_zone=5, panel_type=PanelType.Corner, ballast=15, link_tray=0, cross_tray=1, wind_anchors=1,
-                  pressure=11.16),
+                  pressure=11.101436),
            Panel(wind_zone=6, panel_type=PanelType.NorthSouth, ballast=12, link_tray=0, cross_tray=1, wind_anchors=0,
-                  pressure=9.17),
+                  pressure=9.202700),
            Panel(wind_zone=7, panel_type=PanelType.EastWest, ballast=5, link_tray=2, cross_tray=0, wind_anchors=2,
-                  pressure=5.04, warnings=[PanelWarnings.MaxPsf]),
+                  pressure=4.967106, warnings=[PanelWarnings.MaxPsf]),
            Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=5, link_tray=0, cross_tray=1, wind_anchors=7,
-                  pressure=5.13, warnings=[PanelWarnings.MaxPsf]),
+                  pressure=5.070833, warnings=[PanelWarnings.MaxPsf]),
            Panel(wind_zone=8, panel_type=PanelType.Middle, ballast=4, link_tray=1, cross_tray=1, wind_anchors=6,
-                  pressure=4.39, warnings=[PanelWarnings.MaxPsf]),
+                  pressure=4.380027, warnings=[PanelWarnings.MaxPsf]),
            Panel(wind_zone=9, panel_type=PanelType.NorthSouth, ballast=14, link_tray=0, cross_tray=2, wind_anchors=3,
-                  pressure=10.47, warnings=[PanelWarnings.MaxPsf]),
+                  pressure=10.503803, warnings=[PanelWarnings.MaxPsf]),
            Panel(wind_zone=6, panel_type=PanelType.Corner, ballast=13, link_tray=0, cross_tray=0, wind_anchors=0,
-                  pressure=9.86),
+                  pressure=9.800333),
            Panel(wind_zone=6, panel_type=PanelType.EastWest, ballast=12, link_tray=2, cross_tray=0, wind_anchors=0,
-                  pressure=9.26)
+                  pressure=9.188528)
            ]

        assert_array_is_close(self.subject.ballast_and_trays_matrix(self.c_p_matrix, self.q_z, panels),
@@ -170,19 +170,19 @@ class BallastCalculatorWhenSingleTiltAndPSeriesTest(unittest.TestCase):

        expected_value = [
            Panel(wind_zone=7, panel_type=PanelType.Corner, ballast=9, link_tray=0, cross_tray=0,
-                  wind_anchors=2, pressure=7.44, warnings=[PanelWarnings.MaxPsf]),
+                  wind_anchors=2, pressure=7.388092, warnings=[PanelWarnings.MaxPsf]),
            Panel(wind_zone=7, panel_type=PanelType.NorthSouth, ballast=5, link_tray=0, cross_tray=0,
-                  wind_anchors=2, pressure=4.85, warnings=[PanelWarnings.MaxPsf]),
+                  wind_anchors=2, pressure=4.886296, warnings=[PanelWarnings.MaxPsf]),
            Panel(wind_zone=9, panel_type=PanelType.EastWest, ballast=28, link_tray=2, cross_tray=2,
-                  wind_anchors=0, pressure=19.10),
+                  wind_anchors=0, pressure=19.027457),
            Panel(wind_zone=5, panel_type=PanelType.Corner, ballast=15, link_tray=0, cross_tray=1,
-                  wind_anchors=1, pressure=11.16),
-            Panel(wind_zone=6, panel_type=PanelType.Middle, ballast=11, link_tray=1, cross_tray=0,
-                  wind_anchors=0, pressure=8.51),
+                  wind_anchors=1, pressure=11.101436),
+            Panel(wind_zone=6, panel_type=PanelType.Middle, ballast=11, link_tray=1, cross_tray=1,
+                  wind_anchors=0, pressure= 8.601449),
            Panel(wind_zone=8, panel_type=PanelType.NorthSouth, ballast=8, link_tray=0, cross_tray=2,
-                  wind_anchors=6, pressure=6.85, warnings=[PanelWarnings.MaxPsf]),
+                  wind_anchors=6, pressure=6.885441, warnings=[PanelWarnings.MaxPsf]),
            Panel(wind_zone=6, panel_type=PanelType.Corner, ballast=13, link_tray=0, cross_tray=0,
-                  wind_anchors=0, pressure=9.86)
+                  wind_anchors=0, pressure=9.800333)
        ]

        assert_array_is_close(self.subject.ballast_and_trays_matrix(self.c_p_matrix, self.q_z, panel_data),
@@ -221,22 +221,22 @@ class BallastCalculatorWhenSingleTiltAndPSeriesTest(unittest.TestCase):

    def test_ballast_and_tray_count_iterates_on_link_and_cross_trays_changing_weight_and_ballast_requirements(self):
        panel = self.subject.ballast_tray_and_anchor_count(3, PanelType.NorthSouth, 20, 17, self.c_p_matrix, self.q_z)
-        assert_almost_equal(panel.pressure, 10.37, 2)
+        assert_almost_equal(panel.pressure, 10.408820882088209, 2)

    def test_individual_ballast_block_uplift_greater_than_base_weight(self):
        expected = Panel(wind_zone=6, panel_type=PanelType.Middle, ballast=16, link_tray=1, cross_tray=1,
-                         wind_anchors=0, pressure=8.73)
+                         wind_anchors=0, pressure=8.722061)
        assert self.subject.ballast_tray_and_anchor_count(6, PanelType.Middle, 14, 1000, self.c_p_matrix,
                                                          self.q_z).almost_equal(expected, decimal=2)

-        expected = Panel(wind_zone=6, panel_type=PanelType.Middle, ballast=11, link_tray=1, cross_tray=0,
-                         wind_anchors=0, pressure=8.51)
+        expected = Panel(wind_zone=6, panel_type=PanelType.Middle, ballast=11, link_tray=1, cross_tray=1,
+                         wind_anchors=0, pressure=8.601449)
        assert self.subject.ballast_tray_and_anchor_count(6, PanelType.Middle, 20, 1000, self.c_p_matrix,
                                                          self.q_z).almost_equal(expected, decimal=2)

    def test_ballast_blocks_exceeding_tray_capacity(self):
        expected = Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=5, link_tray=0, cross_tray=1,
-                         wind_anchors=7, pressure=5.13, warnings=[PanelWarnings.MaxPsf])
+                         wind_anchors=7, pressure=5.070833, warnings=[PanelWarnings.MaxPsf])
        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Corner, 20, 1000, self.c_p_matrix,
                                                          self.q_z).almost_equal(expected, decimal=2)

@@ -253,7 +253,7 @@ class BallastCalculatorWhenSingleTiltAndPSeriesTest(unittest.TestCase):
                                                          self.q_z).almost_equal(expected, decimal=2)

        expected = Panel(wind_zone=0, panel_type=PanelType.Corner, ballast=7, link_tray=0, cross_tray=1,
-                         wind_anchors=7, pressure=5.07, warnings=[PanelWarnings.MaxPsf])
+                         wind_anchors=7, pressure=5.010527, warnings=[PanelWarnings.MaxPsf])
        assert self.subject.ballast_tray_and_anchor_count(0, PanelType.Corner, 14, 10, self.c_p_matrix,
                                                          self.q_z).almost_equal(expected, decimal=2)

--- a/test/calculators/calculator_test.py
+++ b/test/calculators/calculator_test.py
@@ -56,7 +56,7 @@ class CalculatorTest(unittest.TestCase):
        self.subject = Calculator(self.values)

        expected = [
-            Subarray(subarray_number=1, origin=Coordinate(0, 0), required_seismic_anchors=435, weight=170237,
+            Subarray(subarray_number=1, origin=Coordinate(0, 0), required_seismic_anchors=436, weight=170698.330000,
                     start_row=0, size=863, column_counted_geometrically=False, row_counted_geometrically=False,
                     row_count=130.5, column_count=98)
        ]
@@ -70,43 +70,43 @@ class CalculatorTest(unittest.TestCase):
        self.subject = Calculator(self.values)

        expected = [
-            Subarray(subarray_number=1, origin=Coordinate(0, 0), required_seismic_anchors=11, weight=23783, start_row=0,
+            Subarray(subarray_number=1, origin=Coordinate(0, 0), required_seismic_anchors=11, weight=23804, start_row=0,
                     size=192, column_counted_geometrically=False, row_counted_geometrically=False,
                     row_count=18, column_count=20),
-            Subarray(subarray_number=2, origin=Coordinate(0, 0), required_seismic_anchors=0, weight=13113,
+            Subarray(subarray_number=2, origin=Coordinate(0, 0), required_seismic_anchors=0, weight=13271,
                     start_row=192, size=96, column_counted_geometrically=False, row_counted_geometrically=False,
                     row_count=4, column_count=24),
-            Subarray(subarray_number=3, origin=Coordinate(0, 0), required_seismic_anchors=110, weight=40406,
+            Subarray(subarray_number=3, origin=Coordinate(0, 0), required_seismic_anchors=110, weight=40328,
                     start_row=288, size=312, column_counted_geometrically=False, row_counted_geometrically=False,
                     row_count=25, column_count=29),
-            Subarray(subarray_number=4, origin=Coordinate(0, 0), required_seismic_anchors=72, weight=23404,
+            Subarray(subarray_number=4, origin=Coordinate(0, 0), required_seismic_anchors=71, weight=23324,
                     start_row=600, size=168, column_counted_geometrically=False, row_counted_geometrically=False,
                     row_count=22, column_count=13),
-            Subarray(subarray_number=5, origin=Coordinate(0, 0), required_seismic_anchors=75, weight=35365,
+            Subarray(subarray_number=5, origin=Coordinate(0, 0), required_seismic_anchors=74, weight=35170,
                     start_row=768, size=234, column_counted_geometrically=False, row_counted_geometrically=False,
                     row_count=26, column_count=14),
-            Subarray(subarray_number=6, origin=Coordinate(0, 0), required_seismic_anchors=0, weight=10897,
+            Subarray(subarray_number=6, origin=Coordinate(0, 0), required_seismic_anchors=1, weight=11461,
                     start_row=1002, size=96, column_counted_geometrically=False, row_counted_geometrically=False,
                     row_count=10, column_count=12),
-            Subarray(subarray_number=7, origin=Coordinate(0, 0), required_seismic_anchors=29, weight=10951,
+            Subarray(subarray_number=7, origin=Coordinate(0, 0), required_seismic_anchors=28, weight=10865,
                     start_row=1098, size=96, column_counted_geometrically=False, row_counted_geometrically=False,
                     row_count=8, column_count=16),
-            Subarray(subarray_number=8, origin=Coordinate(0, 0), required_seismic_anchors=11, weight=10596,
+            Subarray(subarray_number=8, origin=Coordinate(0, 0), required_seismic_anchors=12, weight=10780,
                     start_row=1194, size=96, column_counted_geometrically=False, row_counted_geometrically=False,
                     row_count=15, column_count=17.5),
-            Subarray(subarray_number=9, origin=Coordinate(0, 0), required_seismic_anchors=0, weight=10544,
+            Subarray(subarray_number=9, origin=Coordinate(0, 0), required_seismic_anchors=0, weight= 10989,
                     start_row=1290, size=96, column_counted_geometrically=False, row_counted_geometrically=False,
                     row_count=8, column_count=16),
-            Subarray(subarray_number=10, origin=Coordinate(0, 0), required_seismic_anchors=0, weight=4819,
+            Subarray(subarray_number=10, origin=Coordinate(0, 0), required_seismic_anchors=0, weight=4901,
                     start_row=1386, size=48, column_counted_geometrically=False, row_counted_geometrically=False,
                     row_count=8, column_count=6),
-            Subarray(subarray_number=11, origin=Coordinate(0, 0), required_seismic_anchors=0, weight=10857,
+            Subarray(subarray_number=11, origin=Coordinate(0, 0), required_seismic_anchors=0, weight=10766,
                     start_row=1434, size=96, column_counted_geometrically=False, row_counted_geometrically=False,
                     row_count=13, column_count=13),
-            Subarray(subarray_number=12, origin=Coordinate(0, 0), required_seismic_anchors=0, weight=6330,
+            Subarray(subarray_number=12, origin=Coordinate(0, 0), required_seismic_anchors=0, weight=6350,
                     start_row=1530, size=54, column_counted_geometrically=False, row_counted_geometrically=False,
                     row_count=8, column_count=8),
-            Subarray(subarray_number=13, origin=Coordinate(0, 0), required_seismic_anchors=0, weight=4201,
+            Subarray(subarray_number=13, origin=Coordinate(0, 0), required_seismic_anchors=0, weight=4239,
                     start_row=1584, size=48, column_counted_geometrically=False, row_counted_geometrically=False,
                     row_count=6, column_count=8)
        ]
@@ -140,15 +140,15 @@ class CalculatorTest(unittest.TestCase):
        self.subject = Calculator(self.values)

        received_values = self.subject.summary_values()
-
+        
        expected_values = array([
-            {'label': 'Total System Weight (lbs)', 'value': 2684},
-            {'label': 'Max PSF', 'value': 8.03},
-            {'label': 'Avg PSF', 'value': 5.39},
+            {'label': 'Total System Weight (lbs)', 'value': 2694},
+            {'label': 'Max PSF', 'value': 7.9},
+            {'label': 'Avg PSF', 'value': 5.41},
            {'label': 'Total Anchors', 'value': 5},
-            {'label': 'Total Ballast', 'value': 131},
-            {'label': 'Max Possible System Weight', 'value': 2789.0},
-            {'label': 'Max System Weight Ballast Block', 'value': 16},
+            {'label': 'Total Ballast', 'value': 135},
+            {'label': 'Max Possible System Weight', 'value': 2792.0},
+            {'label': 'Max System Weight Ballast Block', 'value': 17},
            {'label': 'Seismic Anchor Max. Spacing', 'value': 12},
        ])
        assert_array_equal(received_values, expected_values)
@@ -173,13 +173,13 @@ class CalculatorTest(unittest.TestCase):
        received_values = self.subject.documentation_summary_values()

        expected_values = {
-            'total_system_weight': 2684,
-            'max_psf': 8.03,
-            'ave_psf': 5.39,
+            'total_system_weight': 2694,
+            'max_psf': 7.9,
+            'ave_psf': 5.41,
            'total_anchors': 5,
-            'total_ballast': 131,
-            'max_possible_system_weight': 2789.0,
-            'max_system_weight_ballast_block': 16,
+            'total_ballast': 135,
+            'max_possible_system_weight': 2792.0,
+            'max_system_weight_ballast_block': 17,
            'seismic_anchor_max_spacing': 12
        }
        eq_(received_values, expected_values)
@@ -326,6 +326,8 @@ class CalculatorTest(unittest.TestCase):
            expected_csv = expected_file.read()
        reader = csv.reader(expected_csv.splitlines(), dialect='excel-tab')
        expected = array([row for row in reader])
+        print("EXPECTED")
+        print(expected)

        power_station_1 = PowerStation(
            description='1',
@@ -367,6 +369,8 @@ class CalculatorTest(unittest.TestCase):
        )

        self.site.power_stations = [power_station_1, power_station_2]
+        print("COMPUTE")
+        print(self.subject.compute_bom())
        assert_array_equal(self.subject.compute_bom(), expected)

    def test_documentation_bom(self):
@@ -404,91 +408,90 @@ class CalculatorTest(unittest.TestCase):
        self.site.cad_file = csv_content
        self.subject = Calculator(self.values)

-        expected = [
-            ('104813', 50),
-            ('105317', 0),
-            ('106925', 50),
-            ('107538', 0),
-            ('107549', 100),
-            ('107551', 50),
-            ('107586', 100),
-            ('111147', 0),
-            ('114961', 50),
-            ('507985', 0),
-            ('512021', 9),
-            ('512199', 140),
-            ('512200', 3480),
-            ('512510', 196),
-            ('512511', 196),
-            ('512575', 1),
-            ('512660', 2),
-            ('512661', 2),
-            ('512662', 4),
-            ('512663', 2),
-            ('523923', 0),
-            ('512910', 1),
-            ('513007', 50),
-            ('513299', 0),
-            ('513300', 0),
-            ('513301', 0),
-            ('513302', 0),
-            ('513303', 1),
-            ('513304', 0),
-            ('513586', 0),
-            ('513831', 0),
-            ('513832', 0),
-            ('513833', 670),
-            ('513836', 0),
-            ('513843', 262),
-            ('513844', 214),
-            ('514056', 1000),
-            ('514057', 1000),
-            ('514265', 179),
-            ('514435', 0),
-            ('514436', 0),
-            ('514437', 2),
-            ('514438', 2),
-            ('514439', 0),
-            ('514440', 0),
-            ('514477', 2),
-            ('514478', 0),
-            ('523924', 0),
-            ('523921', 1),
-            ('523922', 0),
-            ('514697', 1),
-            ('514698', 1),
-            ('514865', 50),
-            ('515059', 2),
-            ('515063', 4000),
-            ('515928', 261),
-            ('515929', 0),
-            ('516043', 0),
-            ('516045', 0),
-            ('517463', 0),
-            ('517871', 139),
-            ('518058', 2),
-            ('518059', 0),
-            ('518331', 2),
-            ('518477', 275),
-            ('519008', 0),
-            ('520301', 0),
-            ('520302', 0),
-            ('520303', 0),
-            ('520306', 0),
-            ('521031', 2),
-            ('521363', 0),
-            ('521797', 0),
-            ('521798', 0),
-            ('522020', 0),
-            ('805615', 2),
-            ('521794', 196),
-            ('521795', 196),
-
-            ('anchors', 262),
-            ('ballast', 6786),
-            ('modules', 1726)
-        ]
+        expected = [('521794', 196), 
+                    ('521795', 196), 
+                    ('514056', 1000), 
+                    ('modules', 1726), 
+                    ('513843', 263), 
+                    ('anchors', 263), 
+                    ('518477', 275), 
+                    ('513833', 670), 
+                    ('513844', 214), 
+                    ('ballast', 6777), 
+                    ('515928', 261), 
+                    ('517871', 139), 
+                    ('514057', 1000), 
+                    ('515063', 4000), 
+                    ('512200', 3480), 
+                    ('514265', 179), 
+                    ('513303', 1), 
+                    ('512660', 2), 
+                    ('512661', 2), 
+                    ('512662', 4), 
+                    ('512663', 2), 
+                    ('518331', 2), 
+                    ('518058', 2), 
+                    ('104813', 50), 
+                    ('107551', 50), 
+                    ('514865', 50), 
+                    ('106925', 50), 
+                    ('523921', 1), 
+                    ('514438', 2), 
+                    ('514437', 2), 
+                    ('512910', 1), 
+                    ('805615', 2), 
+                    ('521031', 2), 
+                    ('512575', 1), 
+                    ('514698', 1), 
+                    ('513007', 50), 
+                    ('114961', 50), 
+                    ('107549', 100), 
+                    ('107586', 100), 
+                    ('512021', 9), 
+                    ('512199', 140), 
+                    ('512511', 196),
+                    ('512510', 196), 
+                    ('515929', 0), 
+                    ('514477', 2), 
+                    ('515059', 2), 
+                    ('514697', 1), 
+                    ('513831', 0), 
+                    ('513836', 0), 
+                    ('520301', 0), 
+                    ('520302', 0), 
+                    ('520303', 0), 
+                    ('520306', 0), 
+                    ('513832', 0), 
+                    ('514435', 0), 
+                    ('514436', 0), 
+                    ('514439', 0), 
+                    ('514440', 0), 
+                    ('523922', 0), 
+                    ('523923', 0), 
+                    ('523924', 0), 
+                    ('513299', 0), 
+                    ('513301', 0), 
+                    ('514478', 0),
+                    ('513300', 0), 
+                    ('513302', 0), 
+                    ('513304', 0), 
+                    ('519008', 0), 
+                    ('518059', 0), 
+                    ('105317', 0), 
+                    ('111147', 0), 
+                    ('107538', 0), 
+                    ('516045', 0), 
+                    ('516043', 0), 
+                    ('513586', 0), 
+                    ('507985', 0), 
+                    ('522020', 0), 
+                    ('521798', 0), 
+                    ('521797', 0), 
+                    ('521363', 0), 
+                    ('517463', 0)]

+        print("===")
+        print(self.subject.documentation_bom())
        assert_array_equal(sorted(self.subject.documentation_bom()), sorted(expected))

        # Performance Tests
--- a/test/calculators/ebom_calculator_test.py
+++ b/test/calculators/ebom_calculator_test.py
@@ -118,7 +118,7 @@ class EbomCalculatorTest(unittest.TestCase):
            wire_clip_large: 2907,
            cable_support_lid: 368,
            cable_support: 368,
-            rear_skirt: -140,
+            rear_skirt_1_1: -140,
            dc_switch_bracket: 2,
            front_legs: 23,
            back_legs: 23,
@@ -193,10 +193,10 @@ class EbomCalculatorTest(unittest.TestCase):
        self.user_values.module_type.return_value = ModuleType.Cell96
        expected_output = {
            stump: 65,
-            wire_clip_large: 513,
+            wire_clip_large: 590,
            cable_support_lid: 0,
            cable_support: 0,
-            rear_skirt: 0,
+            rear_skirt_1_1: 0,
            rubber_foot: 9,
            delta_inverter_leg: 9,
            harness_4_string_mf: 4,
@@ -228,10 +228,10 @@ class EbomCalculatorTest(unittest.TestCase):
        self.user_values.module_type.return_value = ModuleType.Cell96
        expected_output = {
            stump: 0,
-            wire_clip_large: 171,
+            wire_clip_large: 200,
            cable_support_lid: 0,
            cable_support: 0,
-            rear_skirt: 0,
+            rear_skirt_1_1: 0,
            rubber_foot: 3,
            delta_inverter_leg: 3,
            harness_4_string_mf: 2,
@@ -380,7 +380,7 @@ class EbomCalculatorTest(unittest.TestCase):
            wire_clip_large: 2394,
            cable_support: 270,
            cable_support_lid: 270,
-            rear_skirt: -103,
+            rear_skirt_1_1: -103,
            ethernet_plug: 7.2,
            monitor_power_plug: 1,
            sunshade_bolt: 12,
@@ -492,7 +492,7 @@ class EbomCalculatorTest(unittest.TestCase):
            wire_clip_large: 2394,
            cable_support: 270,
            cable_support_lid: 270,
-            rear_skirt: -103,
+            rear_skirt_1_1: -103,
            ethernet_plug: 7.2,
            monitor_power_plug: 1,
            sunshade_bolt: 12,
@@ -604,7 +604,7 @@ class EbomCalculatorTest(unittest.TestCase):
            wire_clip_large: 2394,
            cable_support: 270,
            cable_support_lid: 270,
-            rear_skirt: -103,
+            rear_skirt_1_1: -103,
            ethernet_plug: 7.2,
            monitor_power_plug: 1,
            fuseshade: 14,
@@ -624,13 +624,13 @@ class EbomCalculatorTest(unittest.TestCase):
        }]
        self.user_values.system_type.return_value = SystemType.singleTilt
        self.user_values.module_type.return_value = ModuleType.Cell96
-        
+
        expected_output = {
            monitor_power_plug: 1,
            stump: 0,
            cable_support: 0,
            cable_support_lid: 0,
-            rear_skirt: 0,
+            rear_skirt_1_1: 0,
            monitor_controller_480_v:1,
        }

@@ -644,13 +644,13 @@ class EbomCalculatorTest(unittest.TestCase):
        }]
        self.user_values.system_type.return_value = SystemType.singleTilt
        self.user_values.module_type.return_value = ModuleType.Cell96
-        
+
        expected_output = {
            monitor_power_plug: 1,
            stump: 0,
            cable_support: 0,
            cable_support_lid: 0,
-            rear_skirt: 0,
+            rear_skirt_1_1: 0,
            monitor_controller_480_v:1,
            flat_washer: 4,
            channel_nut: 4,
@@ -771,7 +771,7 @@ class EbomCalculatorTest(unittest.TestCase):
            wire_clip_large: 2394,
            cable_support: 694,
            cable_support_lid: 694,
-            rear_skirt: -264,
+            rear_skirt_1_1: -264,
            ethernet_plug: 7.2,
            monitor_power_plug: 1,
            fuseshade: 14,
@@ -922,7 +922,7 @@ class EbomCalculatorTest(unittest.TestCase):
            wire_clip_large: 2394,
            cable_support: 270,
            cable_support_lid: 270,
-            rear_skirt: -103,
+            rear_skirt_1_1: -103,
            ethernet_plug: 7.2,
            monitor_power_plug: 1,
            sunshade_bolt: 12,
@@ -968,7 +968,7 @@ class EbomCalculatorTest(unittest.TestCase):
            wire_clip_large: 2394,
            cable_support: 270,
            cable_support_lid: 270,
-            rear_skirt: -103,
+            rear_skirt_1_1: -103,
            ethernet_plug: 7.2,
            sunshade_bolt: 12,
            sunshade_washer: 12,
@@ -1027,7 +1027,7 @@ class EbomCalculatorTest(unittest.TestCase):
            mounting_back_plate: 1,
            cable_support: 0,
            cable_support_lid: 0,
-            rear_skirt: 0,
+            rear_skirt_1_1: 0,
            monitor_power_plug: 1,
        }

@@ -1046,7 +1046,7 @@ class EbomCalculatorTest(unittest.TestCase):
            mounting_back_plate: 1,
            cable_support: 0,
            cable_support_lid: 0,
-            rear_skirt: 0,
+            rear_skirt_1_1: 0,
            monitor_power_plug: 1,
        }

@@ -1055,14 +1055,14 @@ class EbomCalculatorTest(unittest.TestCase):
            stump: 0,
            cable_support: 0,
            cable_support_lid: 0,
-            rear_skirt: 0
+            rear_skirt_1_1: 0
        }

        expected_output_240_pseries = {
            stump: 0,
            cable_support_lid: 0,
            cable_support: 0,
-            rear_skirt: 0,
+            rear_skirt_1_1: 0,
            monitor_controller_240_v: 1,
        }

@@ -1116,14 +1116,14 @@ class EbomCalculatorTest(unittest.TestCase):
            stump: 0,
            cable_support: 0,
            cable_support_lid: 0,
-            rear_skirt: 0,
+            rear_skirt_1_1: 0,
            monitor_controller_480_v: 1,
            ethernet_plug: 2,
        }

        assert_dictionary_equal(self.subject.compute_ebom(), expected_output)

-    def test_computes_ebom_with_power_monitor_SMA_brand(self):  
+    def test_computes_ebom_with_power_monitor_SMA_brand(self):
        self.user_values.inverter_brands.return_value = [{'inverter_brand_id':1}]
        self.user_values.power_monitors.return_value = [{
            'monitor_id': 'foo',
@@ -1131,13 +1131,13 @@ class EbomCalculatorTest(unittest.TestCase):
        }]
        self.user_values.system_type.return_value = SystemType.singleTilt
        self.user_values.module_type.return_value = ModuleType.Cell96
-        
+
        expected_output = {
            monitor_power_plug: 1,
            stump: 0,
            cable_support: 0,
            cable_support_lid: 0,
-            rear_skirt: 0,
+            rear_skirt_1_1: 0,
            monitor_controller_480_v:1,
            flat_washer: 4,
            channel_nut: 4,
@@ -1152,7 +1152,3 @@ class EbomCalculatorTest(unittest.TestCase):
        }

        assert_dictionary_equal(self.subject.compute_ebom(), expected_output)
-
-
-
-    
--- a/test/calculators/mechanical_bom/.mechanical_bom_calculator_single_tilt_96_cell_test.py.swp
+++ b/test/calculators/mechanical_bom/.mechanical_bom_calculator_single_tilt_96_cell_test.py.swp
--- a/test/calculators/mechanical_bom/mechanical_bom_calculator_single_tilt_96_cell_test.py
+++ b/test/calculators/mechanical_bom/mechanical_bom_calculator_single_tilt_96_cell_test.py
@@ -99,7 +99,7 @@ class MechanicalBomCalculatorWhenSingleTilt96CellTest(unittest.TestCase):
            cross_tray: 5,
            rubber_foot: 4.4,
            front_skirt: 24,
-            rear_skirt: 44,
+            rear_skirt_1_1: 44,
            leading_tray: 25,
            ballast: 192,
            anchor: 15,  # 12 + the 3 seismic anchors
--- a/test/calculators/summary_values_test.py
+++ b/test/calculators/summary_values_test.py
@@ -54,8 +54,8 @@ class SummaryValuesTest(unittest.TestCase):
            {'label': 'Avg PSF', 'value': 10.06},
            {'label': 'Total Anchors', 'value': 7},
            {'label': 'Total Ballast', 'value': 8},
-            {'label': 'Max Possible System Weight', 'value': 1568.0},
-            {'label': 'Max System Weight Ballast Block', 'value': 14},
+            {'label': 'Max Possible System Weight', 'value': 1563.0},
+            {'label': 'Max System Weight Ballast Block', 'value': 16},
            {'label': 'Seismic Anchor Max. Spacing', 'value': seismic_interval}
        ]
        eq_(result, expected)
@@ -83,8 +83,8 @@ class SummaryValuesTest(unittest.TestCase):
            'ave_psf': 10.06,
            'total_anchors': 7,
            'total_ballast': 8,
-            'max_possible_system_weight': 1568.0,
-            'max_system_weight_ballast_block': 14,
+            'max_possible_system_weight': 1563.0,
+            'max_system_weight_ballast_block': 16,
            'seismic_anchor_max_spacing': 10
        }

@@ -111,7 +111,7 @@ class SummaryValuesTest(unittest.TestCase):

        result = self.subject.find_max_system_weight(panels, self.c_p_matrix, self.q_z, self.ballast_calculator)

-        assert_almost_equal(result, (1568, 14), decimal=0)
+        assert_almost_equal(result, (1563, 16), decimal=0)

    def test_find_max_system_weight_does_not_modify_panels_list(self):
        panels = [
--- a/test/fixtures/expected_dual_tilt.csv
+++ b/test/fixtures/expected_dual_tilt.csv
@@ -1,8 +1,8 @@
 HANDLE	BLOCKNAME	WIND	POS	SUBARRAY	PSF	BAL	LTRAY	XTRAY	ANC	ID	XCOORD	YCOORD	ANGLE
-'21EEE0	*U593	C	1	1	12.9	20	2	1	-	1	0	0	0
-'21EECC	*U824	C	2	1	11.35	17	2	1	-	2	0	0	0
-'21EEB8	*U824	E	3	1	2.26	0	1	-	-	3	0	0	0
+'21EEE0	*U593	C	1	1	12.91	20	2	1	-	1	0	0	0
+'21EECC	*U824	C	2	1	11.34	17	2	1	-	2	0	0	0
+'21EEB8	*U824	E	3	1	2.28	0	1	-	-	3	0	0	0
 '21EEA4	*U593	A	1	1	5.55	6	2	-	2	4	0	0	0
-'21E940	*U171	B	4	1	13.83	22	1	2	-	5	0	0	0
+'21E940	*U171	B	4	1	13.87	22	1	2	-	5	0	0	0
 '21E92C	*U824	D	1	1	7.1	9	2	-	-	6	0	0	0
 '21E918	*U593	B	1	1	9.8	14	2	1	1	7	0	0	0
--- a/test/fixtures/expected_dual_tilt_bom.csv
+++ b/test/fixtures/expected_dual_tilt_bom.csv
@@ -1,7 +1,7 @@
 Part #	Description	Total
 512200	CLIP, WIRE FORMED, CABLE MANAGEMENT, INSIDE, 352MM ^ 2	3480
 513833	TRAY, LINK, HELIX ROOF	670
-513843	PLATE, ANCHOR, HELIX ROOF	262
+513843	PLATE, ANCHOR, HELIX ROOF	263
 513844	TRAY, OPTIONAL BALLAST, HELIX ROOF	214
 514056	BASE, CHASSIS, DUAL TILT, HELIX ROOF	1000
 514057	PLATFORM, CHASSIS, DUAL TILT, HELIX ROOF	1000
@@ -12,6 +12,6 @@ Part #	Description	Total
 518477	WASHER, FLAT, 3/8, 1.00 OD, 18-8 SS	275
 521794	DEFLECTOR, LH, HELIX ROOF V1.1	196
 521795	DEFLECTOR, RH, HELIX ROOF V1.1	196
-Contractor Supplied	Ballast Blocks	6786
-TBD	Anchors	262
+Contractor Supplied	Ballast Blocks	6777
+TBD	Anchors	263
 TBD	Modules	1726
--- a/test/fixtures/expected_dual_tilt_ebom.csv
+++ b/test/fixtures/expected_dual_tilt_ebom.csv
@@ -14,7 +14,7 @@
 513299	COMBINER BOX, AC, 4 INPUT, NO AUX, W/ CONNECTOR	3
 513303	COMBINER BOX, AC, 2 INPUT, NO AUX, W/ CONNECTOR	1
 513833	TRAY, LINK, HELIX ROOF	670
-513843	PLATE, ANCHOR, HELIX ROOF	262
+513843	PLATE, ANCHOR, HELIX ROOF	263
 513844	TRAY, OPTIONAL BALLAST, HELIX ROOF	214
 514056	BASE, CHASSIS, DUAL TILT, HELIX ROOF	1000
 514057	PLATFORM, CHASSIS, DUAL TILT, HELIX ROOF	1000
@@ -42,6 +42,6 @@
 523922	INVERTER, SMA, STP, 24000TL-US-10 (SPR-24000m-3-H), AFCI, CONNECTORIZED, UTX XL REV D DC CONNECTORS	1
 523923	INVERTER, SMA, STP, 12000TL-US-10 (SPR-12000m-3-H), AFCI, CONNECTORIZED, UTX XL REV D DC CONNECTORS	3
 523924	INVERTER, SMA, STP, 15000TL-US-10 (SPR-15000m-3-H), AFCI, CONNECTORIZED, UTX XL REV D DC CONNECTORS	9
-Contractor Supplied	Ballast Blocks	6786
-TBD	Anchors	262
+Contractor Supplied	Ballast Blocks	6777
+TBD	Anchors	263
 TBD	Modules	1726
--- a/test/fixtures/expected_single_tilt.csv
+++ b/test/fixtures/expected_single_tilt.csv
@@ -1,20 +1,20 @@
 HANDLE	BLOCKNAME	WIND	POS	SUBARRAY	PSF	BAL	LTRAY	XTRAY	ANC	ID	XCOORD	YCOORD	ANGLE
-'40EC39	*U5399	H	1	8	14.37	16	-	1	-	1	0	0	0
-'40EC22	*U5402	H	3	8	12.89	14	2	1	-	2	0	0	0
-'40EC0B	*U5402	H	1	8	14.37	16	-	1	-	3	0	0	0
-'40EBF4	*U5402	H	1	8	14.37	16	-	1	-	4	0	0	0
-'40EBDD	*U5402	H	3	8	12.89	14	2	1	-	5	0	0	0
-'40EBC6	*U5402	H	3	8	12.89	14	2	1	-	6	0	0	0
-'40EBAF	*U5402	H	3	8	12.89	14	2	1	-	7	0	0	0
-'40EB98	*U5399	H	1	8	14.37	16	-	1	-	8	0	0	0
-'40EB81	*U5401	H	2	8	12.65	14	-	1	-	9	0	0	0
-'40E8B8	*U5401	H	2	8	12.65	14	-	1	-	10	0	0	0
-'40E8A1	*U5401	I	2	8	1.89	0	-	-	2	11	0	0	0
-'40E88A	*U5400	H	4	8	10.42	11	1	1	-	12	0	0	0
-'40E873	*U5400	H	4	8	10.42	11	1	1	-	13	0	0	0
-'40E85C	*U5400	H	4	8	10.42	11	1	1	-	14	0	0	0
-'40E845	*U5400	H	4	8	10.42	11	1	1	-	15	0	0	0
-'40E82E	*U5400	H	4	8	10.42	11	1	1	-	16	0	0	0
-'40E817	*U5400	H	4	8	10.42	11	1	1	-	17	0	0	0
-'40E800	*U5401	H	2	8	12.65	14	-	1	-	18	0	0	0
-'40E7E9	*U5401	I	2	8	1.89	0	-	-	2	19	0	0	0
+'40EC39	*U5399	H	1	8	14.24	16	-	1	-	1	0	0	0
+'40EC22	*U5402	H	3	8	12.72	14	2	1	-	2	0	0	0
+'40EC0B	*U5402	H	1	8	14.24	16	-	1	-	3	0	0	0
+'40EBF4	*U5402	H	1	8	14.24	16	-	1	-	4	0	0	0
+'40EBDD	*U5402	H	3	8	12.72	14	2	1	-	5	0	0	0
+'40EBC6	*U5402	H	3	8	12.72	14	2	1	-	6	0	0	0
+'40EBAF	*U5402	H	3	8	12.72	14	2	1	-	7	0	0	0
+'40EB98	*U5399	H	1	8	14.24	16	-	1	-	8	0	0	0
+'40EB81	*U5401	H	2	8	12.6	14	-	1	-	9	0	0	0
+'40E8B8	*U5401	H	2	8	12.6	14	-	1	-	10	0	0	0
+'40E8A1	*U5401	I	2	8	1.84	0	-	-	2	11	0	0	0
+'40E88A	*U5400	H	4	8	10.4	11	1	1	-	12	0	0	0
+'40E873	*U5400	H	4	8	10.4	11	1	1	-	13	0	0	0
+'40E85C	*U5400	H	4	8	10.4	11	1	1	-	14	0	0	0
+'40E845	*U5400	H	4	8	10.4	11	1	1	-	15	0	0	0
+'40E82E	*U5400	H	4	8	10.4	11	1	1	-	16	0	0	0
+'40E817	*U5400	H	4	8	10.4	11	1	1	-	17	0	0	0
+'40E800	*U5401	H	2	8	12.6	14	-	1	-	18	0	0	0
+'40E7E9	*U5401	I	2	8	1.84	0	-	-	2	19	0	0	0
--- a/test/fixtures/expected_single_tilt_bom.csv
+++ b/test/fixtures/expected_single_tilt_bom.csv
@@ -27,7 +27,7 @@ Part #	Description	Total
 513832	TRAY, FOLLOWING, HELIX ROOF	210
 513833	TRAY, LINK, HELIX ROOF	1271
 513836	SPOILER, SINGLE TILT, HELIX ROOF	1632
-513843	PLATE, ANCHOR, HELIX ROOF	414
+513843	PLATE, ANCHOR, HELIX ROOF	416
 513844	TRAY, OPTIONAL BALLAST, HELIX ROOF	274
 514265	FOOT, RECYCLED RUBBER, HELIX ROOF	230
 514435	HARNESS, DC COMBINATION, W/ FUSE, 3 STRING, FEMALES TO MALE, HELIX	4
@@ -43,13 +43,13 @@ Part #	Description	Total
 514865	BOLT, HH, 3/8-16 X 1/2, 18-8 SS	350
 515059	ASSY, WHIP TRAY W/FUSE CLIPS, INVERTER, HELIX	16
 515928	FRONT SKIRT, HELIX ROOF	197
-515929	REAR SKIRT, HELIX ROOF	1469
 516043	AC SWITCH, CONNECTORIZED, HELIX ROOF	2
 516045	AC SPLICE BOX, CONNECTORIZED, HELIX ROOF	1
 517871	TRAY, LEADING, HELIX ROOF, RIVETED VERSION	210
 518058	CONNECTOR, ETHERNET, PLUG, RJ-45, WEATHERPROOF, SHIELDED	15
 518331	MOUNTING BACK PLATE, INVERTER/PANEL BOARD, HELIX ROOF/TRACKER	22
 518477	WASHER, FLAT, 3/8, 1.00 OD, 18-8 SS	425
+520301	REAR SKIRT, HELIX ROOF V1.1	1469
 521031	WASHER, FLAT, M10 X 20MM OD, SS	10
 521794	DEFLECTOR, LH, HELIX ROOF V1.1	171
 521795	DEFLECTOR, RH, HELIX ROOF V1.1	171
@@ -57,6 +57,6 @@ Part #	Description	Total
 523922	INVERTER, SMA, STP, 24000TL-US-10 (SPR-24000m-3-H), AFCI, CONNECTORIZED, UTX XL REV D DC CONNECTORS	3
 523924	INVERTER, SMA, STP, 15000TL-US-10 (SPR-15000m-3-H), AFCI, CONNECTORIZED, UTX XL REV D DC CONNECTORS	6
 805615	SCREW, HEXAGONAL HEAD, M10X20, SS A2	10
-Contractor Supplied	Ballast Blocks	10150
-TBD	Anchors	414
+Contractor Supplied	Ballast Blocks	10448
+TBD	Anchors	416
 TBD	Modules	1632
--- a/test/fixtures/expected_small_dual_tilt.txt
+++ b/test/fixtures/expected_small_dual_tilt.txt
@@ -1,3 +1,3 @@
 HANDLE	BLOCKNAME	WIND	POS	SUBARRAY	PSF	BAL	LTRAY	XTRAY	ANC	ID	XCOORD	YCOORD	ANGLE
-'40EC39	*U5399	A	1	1	2.4	0	2	-	1	1	0	0	0
-'40EC22	*U5402	A	1	1	2.4	0	2	-	1	2	0	0	0
+'40EC39	*U5399	A	1	1	2.39	0	2	-	1	1	0	0	0
+'40EC22	*U5402	A	1	1	2.39	0	2	-	1	2	0	0	0
--- a/test/fixtures/irvine_fortune_result.txt
+++ b/test/fixtures/irvine_fortune_result.txt
--- a/test/fixtures/wind
+++ b/test/fixtures/wind
@@ -0,0 +1,169 @@
+HANDLE	BLOCKNAME	WIND	POS	SUBARRAY	PSF	BAL	LTRAY	XTRAY	ANC	ID	XCOORD	YCOORD	ANGLE
+'1A66A5	*U5350	B	1	3	2.76	1	2	-	1	1	13906.282	-20190.065	4.124
+'1A667F	*U5350	B	1	3	2.76	1	2	-	1	2	13818.27	-20196.412	4.124
+'1A6633	*U5350	B	1	2	2.76	1	2	-	1	3	13647.543	-20208.723	4.124
+'1A6529	*U5425	B	3	3	2.26	0	1	-	1	4	13910.752	-20252.064	4.124
+'1A6503	*U5425	B	3	3	2.26	0	1	-	1	5	13822.741	-20258.411	4.124
+'1A64B7	*U5425	B	3	2	2.26	0	1	-	1	6	13652.014	-20270.722	4.124
+'1A63AD	*U5425	B	3	3	2.26	0	1	-	1	7	13915.223	-20314.063	4.124
+'1A6387	*U5425	B	3	3	2.26	0	1	-	1	8	13827.212	-20320.41	4.124
+'1A633B	*U5425	B	3	2	2.26	0	1	-	1	9	13656.484	-20332.721	4.124
+'1A6231	*U5425	C	3	3	6.36	11	1	1	-	10	13919.694	-20376.062	4.124
+'1A620B	*U5425	C	3	3	6.36	11	1	1	-	11	13831.682	-20382.409	4.124
+'1A61BF	*U5425	C	3	2	6.36	11	1	1	-	12	13660.955	-20394.72	4.124
+'1A60B5	*U5425	C	3	3	6.36	11	1	1	-	13	13924.164	-20438.061	4.124
+'1A608F	*U5425	C	3	3	6.36	11	1	1	-	14	13836.153	-20444.408	4.124
+'1A6043	*U5425	C	3	2	6.36	11	1	1	-	15	13665.426	-20456.719	4.124
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+'1A503B	*U5349	B	4	1	5.58	9	2	-	-	58	12947.922	-20321.493	4.124
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+'1A4FEF	*U5425	B	3	1	2.26	0	1	-	1	60	12771.899	-20334.186	4.124
+'1A4FC9	*U5349	B	4	2	5.58	9	2	-	-	61	13568.473	-20339.067	4.124
+'1A4FA3	*U5349	B	4	2	5.58	9	2	-	-	62	13480.461	-20345.414	4.124
+'1A4F7D	*U5349	C	4	2	3.71	4	-	-	-	63	13392.45	-20351.76	4.124
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+'1A4F31	*U5425	C	3	2	6.36	11	1	1	-	65	13216.427	-20364.453	4.124
+'1A4EE5	*U5425	B	3	1	2.26	0	1	-	1	66	13040.404	-20377.146	4.124
+'1A4EBF	*U5349	B	4	1	5.58	9	2	-	-	67	12952.393	-20383.492	4.124
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+'1A4E4D	*U5349	C	4	2	3.71	4	-	-	-	70	13572.944	-20401.066	4.124
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+'1A4DB5	*U5425	C	3	2	6.36	11	1	1	-	74	13220.898	-20426.452	4.124
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+'1A4D43	*U5349	B	4	1	5.58	9	2	-	-	76	12956.863	-20445.491	4.124
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+'1A4CF7	*U5425	B	3	1	2.26	0	1	-	1	78	12780.84	-20458.184	4.124
+'1A4CD1	*U5349	C	4	2	3.71	4	-	-	-	79	13577.414	-20463.065	4.124
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+'1A4C85	*U5349	C	4	2	3.71	4	-	-	-	81	13401.391	-20475.758	4.124
+'1A4C5F	*U5349	C	4	2	3.71	4	-	-	-	82	13313.38	-20482.104	4.124
+'1A4C39	*U5425	C	3	2	6.36	11	1	1	-	83	13225.368	-20488.451	4.124
+'1A4BED	*U5425	B	3	1	2.26	0	1	-	1	84	13049.345	-20501.144	4.124
+'1A4BC7	*U5349	B	4	1	5.58	9	2	-	-	85	12961.334	-20507.49	4.124
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+'1A4B7B	*U5425	B	3	1	2.26	0	1	-	1	87	12785.311	-20520.183	4.124
+'1A4B55	*U5349	C	4	2	3.71	4	-	-	-	88	13581.885	-20525.064	4.124
+'1A4B2F	*U5349	C	4	2	3.71	4	-	-	-	89	13493.874	-20531.411	4.124
+'1A4B09	*U5349	C	4	2	3.71	4	-	-	-	90	13405.862	-20537.757	4.124
+'1A4AE3	*U5349	C	4	2	3.71	4	-	-	-	91	13317.851	-20544.103	4.124
+'1A4ABD	*U5425	C	3	2	6.36	11	1	1	-	92	13229.839	-20550.45	4.124
+'1A4A71	*U5425	B	3	1	2.26	0	1	-	1	93	13053.816	-20563.143	4.124
+'1A4A4B	*U5349	B	4	1	5.58	9	2	-	-	94	12965.805	-20569.489	4.124
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+'1A49B3	*U5349	B	4	2	5.58	9	2	-	-	98	13498.344	-20593.41	4.124
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+'1A4941	*U5425	B	3	2	2.26	0	1	-	1	101	13234.31	-20612.449	4.124
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+'1A48CF	*U5349	B	4	1	5.58	9	2	-	-	103	12970.275	-20631.488	4.124
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+'1A4883	*U5425	B	3	1	2.26	0	1	-	1	105	12794.252	-20644.181	4.124
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+'1A47EB	*U5349	B	4	2	5.58	9	2	-	-	109	13326.792	-20668.101	4.124
+'1A47C5	*U5425	B	3	2	2.26	0	1	-	1	110	13238.78	-20674.448	4.124
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+'1A4753	*U5349	B	4	1	5.58	9	2	-	-	112	12974.746	-20693.487	4.124
+'1A472D	*U5349	B	4	1	5.58	9	2	-	-	113	12886.735	-20699.834	4.124
+'1A4707	*U5425	B	3	1	2.26	0	1	-	1	114	12798.723	-20706.18	4.124
+'1A46E1	*U5349	B	4	2	5.58	9	2	-	-	115	13595.297	-20711.061	4.124
+'1A46BB	*U5349	B	4	2	5.58	9	2	-	-	116	13507.286	-20717.408	4.124
+'1A4695	*U5349	B	4	2	5.58	9	2	-	-	117	13419.274	-20723.754	4.124
+'1A466F	*U5349	B	4	2	5.58	9	2	-	-	118	13331.263	-20730.101	4.124
+'1A4649	*U5425	B	3	2	2.26	0	1	-	1	119	13243.251	-20736.447	4.124
+'1A45FD	*U5425	B	3	1	2.26	0	1	-	1	120	13067.228	-20749.14	4.124
+'1A45D7	*U5349	B	4	1	5.58	9	2	-	-	121	12979.217	-20755.486	4.124
+'1A45B1	*U5349	B	4	1	5.58	9	2	-	-	122	12891.205	-20761.833	4.124
+'1A458B	*U5425	B	3	1	2.26	0	1	-	1	123	12803.194	-20768.179	4.124
+'1A4565	*U5349	B	4	2	5.58	9	2	-	-	124	13599.768	-20773.06	4.124
+'1A453F	*U5349	B	4	2	5.58	9	2	-	-	125	13511.756	-20779.407	4.124
+'1A4519	*U5349	B	4	2	5.58	9	2	-	-	126	13423.745	-20785.753	4.124
+'1A44F3	*U5349	B	4	2	5.58	9	2	-	-	127	13335.733	-20792.1	4.124
+'1A44CD	*U5425	B	3	2	2.26	0	1	-	1	128	13247.722	-20798.446	4.124
+'1A4481	*U5425	B	3	1	2.26	0	1	-	1	129	13071.699	-20811.139	4.124
+'1A445B	*U5349	B	4	1	5.58	9	2	-	-	130	12983.687	-20817.485	4.124
+'1A4435	*U5349	B	4	1	5.58	9	2	-	-	131	12895.676	-20823.832	4.124
+'1A440F	*U5425	B	3	1	2.26	0	1	-	1	132	12807.664	-20830.178	4.124
+'1A43E9	*U5349	B	4	2	5.58	9	2	-	-	133	13604.238	-20835.059	4.124
+'1A43C3	*U5349	B	4	2	5.58	9	2	-	-	134	13516.227	-20841.406	4.124
+'1A439D	*U5349	B	4	2	5.58	9	2	-	-	135	13428.215	-20847.752	4.124
+'1A4377	*U5349	B	4	2	5.58	9	2	-	-	136	13340.204	-20854.099	4.124
+'1A4351	*U5425	B	3	2	2.26	0	1	-	1	137	13252.192	-20860.445	4.124
+'1A4305	*U5425	B	3	1	2.26	0	1	-	1	138	13076.17	-20873.138	4.124
+'1A42DF	*U5349	B	4	1	5.58	9	2	-	-	139	12988.158	-20879.484	4.124
+'1A42B9	*U5349	B	4	1	5.58	9	2	-	-	140	12900.147	-20885.831	4.124
+'1A4293	*U5425	B	3	1	2.26	0	1	-	1	141	12812.135	-20892.177	4.124
+'1A426D	*U5349	B	4	2	5.58	9	2	-	-	142	13608.709	-20897.058	4.124
+'1A4247	*U5349	B	4	2	5.58	9	2	-	-	143	13520.698	-20903.405	4.124
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+'1A41FB	*U5349	B	4	2	5.58	9	2	-	-	145	13344.675	-20916.098	4.124
+'1A41D5	*U5425	B	3	2	2.26	0	1	-	1	146	13256.663	-20922.444	4.124
+'1A4189	*U5425	B	3	1	2.26	0	1	-	1	147	13080.64	-20935.137	4.124
+'1A4163	*U5349	B	4	1	5.58	9	2	-	-	148	12992.629	-20941.483	4.124
+'1A413D	*U5349	B	4	1	5.58	9	2	-	-	149	12904.617	-20947.83	4.124
+'1A4117	*U5425	B	3	1	2.26	0	1	-	1	150	12816.606	-20954.176	4.124
+'1A40F1	*U5349	B	4	2	5.58	9	2	-	-	151	13613.18	-20959.057	4.124
+'1A40CB	*U5349	B	4	2	5.58	9	2	-	-	152	13525.168	-20965.404	4.124
+'1A40A5	*U5349	B	4	2	5.58	9	2	-	-	153	13437.157	-20971.75	4.124
+'1A407F	*U5349	B	4	2	5.58	9	2	-	-	154	13349.145	-20978.097	4.124
+'1A4059	*U5425	B	3	2	2.26	0	1	-	1	155	13261.134	-20984.443	4.124
+'1A400D	*U5425	B	3	1	2.26	0	1	-	1	156	13085.111	-20997.136	4.124
+'1A3FE7	*U5349	B	4	1	5.58	9	2	-	-	157	12997.099	-21003.482	4.124
+'1A3FC1	*U5349	B	4	1	5.58	9	2	-	-	158	12909.088	-21009.829	4.124
+'1A3F9B	*U5425	B	3	1	2.26	0	1	-	1	159	12821.076	-21016.175	4.124
+'1A3F75	*U5424	B	2	2	2.4	0	2	-	1	160	13617.65	-21021.056	4.124
+'1A3F4F	*U5424	B	2	2	2.4	0	2	-	1	161	13529.639	-21027.403	4.124
+'1A3F29	*U5424	B	2	2	2.4	0	2	-	1	162	13441.628	-21033.749	4.124
+'1A3F03	*U5424	B	2	2	2.4	0	2	-	1	163	13353.616	-21040.096	4.124
+'1A3EDD	*U5350	B	1	2	2.76	1	2	-	1	164	13265.605	-21046.442	4.124
+'1A3E91	*U5350	B	1	1	2.76	1	2	-	1	165	13089.582	-21059.135	4.124
+'1A3E6B	*U5424	B	2	1	2.4	0	2	-	1	166	13001.57	-21065.481	4.124
+'1A3E45	*U5424	B	2	1	2.4	0	2	-	1	167	12913.559	-21071.828	4.124
+'1A3E1F	*U5350	B	1	1	2.76	1	2	-	1	168	12825.547	-21078.174	4.124
--- a/test/integration/array_summary_test.py
+++ b/test/integration/array_summary_test.py
@@ -171,11 +171,11 @@ class ArraySummaryTest(unittest.TestCase):
    def test_shows_summary_values(self):
        self.fill_in_site_characterization_data()
        self.upload_csv_file(file='test/fixtures/input_single_tilt_csv_for_bom.csv')
-        self.assert_summary_values_column_data(1, 'Total System Weight (lbs)', '216,074')
-        self.assert_summary_values_column_data(2, 'Max PSF', '9.11')
-        self.assert_summary_values_column_data(3, 'Avg PSF', '5.05')
-        self.assert_summary_values_column_data(4, 'Total Anchors', '421')
-        self.assert_summary_values_column_data(5, 'Total Ballast', '10,150')
+        self.assert_summary_values_column_data(1, 'Total System Weight (lbs)', '217,409')
+        self.assert_summary_values_column_data(2, 'Max PSF', '9.36')
+        self.assert_summary_values_column_data(3, 'Avg PSF', '5.08')
+        self.assert_summary_values_column_data(4, 'Total Anchors', '422')
+        self.assert_summary_values_column_data(5, 'Total Ballast', '10,448')

    def test_shows_seismic_placement_interval(self):
        self.fill_in_site_characterization_data(system_type=SystemType.dualTilt)
@@ -212,26 +212,26 @@ class ArraySummaryTest(unittest.TestCase):
        eq_(response.content_type, "application/json")
        data = json.loads(response.data.decode())
        expected = [
-            {'data': {'ballast': 7, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 1, 'panel_type': 2, 'psf': 4.94, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'A'}, 'height': 1, 'width': 1.5},
-            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 2, 'panel_type': 2, 'psf': 3.12, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
-            {'data': {'ballast': 11, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 3, 'panel_type': 1, 'psf': 6.47, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'A'}, 'height': 1, 'width': 1.5},
-            {'data': {'ballast': 11, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 4, 'panel_type': 1, 'psf': 6.47, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'A'}, 'height': 1, 'width': 1.5},
+            {'data': {'ballast': 7, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 1, 'panel_type': 2, 'psf': 4.91, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'A'}, 'height': 1, 'width': 1.5},
+            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 2, 'panel_type': 2, 'psf': 3.1, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
+            {'data': {'ballast': 11, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 3, 'panel_type': 1, 'psf': 6.48, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'A'}, 'height': 1, 'width': 1.5},
+            {'data': {'ballast': 11, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 4, 'panel_type': 1, 'psf': 6.48, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'A'}, 'height': 1, 'width': 1.5},
            {'data': {'ballast': 6, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 5, 'panel_type': 1, 'psf': 4.57, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
-            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 6, 'panel_type': 2, 'psf': 3.12, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
+            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 6, 'panel_type': 2, 'psf': 3.1, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
            {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 7, 'panel_type': 4, 'psf': 2.26, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
-            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 1, 'panel_id': 8, 'panel_type': 3, 'psf': 2.98, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
-            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 1, 'panel_id': 9, 'panel_type': 3, 'psf': 2.98, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
+            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 1, 'panel_id': 8, 'panel_type': 3, 'psf': 3.0, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
+            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 1, 'panel_id': 9, 'panel_type': 3, 'psf': 3.0, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
            {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 10, 'panel_type': 4, 'psf': 2.26, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
-            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 11, 'panel_type': 2, 'psf': 3.12, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
-            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 1, 'panel_id': 12, 'panel_type': 3, 'psf': 2.98, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
-            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 1, 'panel_id': 13, 'panel_type': 3, 'psf': 2.98, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
-            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 1, 'panel_id': 14, 'panel_type': 3, 'psf': 2.98, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
+            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 11, 'panel_type': 2, 'psf': 3.1, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
+            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 1, 'panel_id': 12, 'panel_type': 3, 'psf': 3.0, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
+            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 1, 'panel_id': 13, 'panel_type': 3, 'psf': 3.0, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
+            {'data': {'ballast': 2, 'cross_trays': 0, 'link_trays': 1, 'panel_id': 14, 'panel_type': 3, 'psf': 3.0, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
            {'data': {'ballast': 6, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 15, 'panel_type': 1, 'psf': 4.57, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
            {'data': {'ballast': 6, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 16, 'panel_type': 1, 'psf': 4.57, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
            {'data': {'ballast': 6, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 17, 'panel_type': 1, 'psf': 4.57, 'seismic_anchors': 0, 'subarray': 7, 'wind_anchors': 0, 'wind_zones': 'B'}, 'height': 1, 'width': 1.5},
-            {'data': {'ballast': 11, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 18, 'panel_type': 1, 'psf': 6.47, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 0, 'wind_zones': 'A'}, 'height': 1, 'width': 1.5},
-            {'data': {'ballast': 6, 'cross_trays': 0, 'link_trays': 1, 'panel_id': 19, 'panel_type': 3, 'psf': 4.48, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 0, 'wind_zones': 'A'}, 'height': 1, 'width': 1.5},
-            {'data': {'ballast': 11, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 20, 'panel_type': 1, 'psf': 6.47, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 0, 'wind_zones': 'A'}, 'height': 1, 'width': 1.5}
+            {'data': {'ballast': 11, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 18, 'panel_type': 1, 'psf': 6.48, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 0, 'wind_zones': 'A'}, 'height': 1, 'width': 1.5},
+            {'data': {'ballast': 6, 'cross_trays': 0, 'link_trays': 1, 'panel_id': 19, 'panel_type': 3, 'psf': 4.5, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 0, 'wind_zones': 'A'}, 'height': 1, 'width': 1.5},
+            {'data': {'ballast': 11, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 20, 'panel_type': 1, 'psf': 6.48, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 0, 'wind_zones': 'A'}, 'height': 1, 'width': 1.5}
        ]

        # Removing these keys as they get calculated differently in CircleCI
@@ -290,28 +290,28 @@ class ArraySummaryTest(unittest.TestCase):
            "status": "success",
            "error": None,
            "panel_data": [
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 2.08, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 1, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 0, 'seismic_anchors': 2, 'panel_id': 1}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 2.04, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 3, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 2, 'seismic_anchors': 0, 'panel_id': 2}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 2.08, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 1, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 0, 'seismic_anchors': 0, 'panel_id': 3}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 2.08, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 1, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 0, 'seismic_anchors': 0, 'panel_id': 4}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 2.04, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 3, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 2, 'seismic_anchors': 0, 'panel_id': 5}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 2.04, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 3, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 2, 'seismic_anchors': 0, 'panel_id': 6}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 2.04, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 3, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 2, 'seismic_anchors': 0, 'panel_id': 7}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 2.08, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 1, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 0, 'seismic_anchors': 0, 'panel_id': 8}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 1.89, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 2, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 0, 'seismic_anchors': 0, 'panel_id': 9}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 1.89, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 2, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 0, 'seismic_anchors': 0, 'panel_id': 10}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 1.89, 'wind_zones': 'I', 'ballast': 0, 'panel_type': 2, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 0, 'seismic_anchors': 0, 'panel_id': 11}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 1.86, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 4, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 0, 'seismic_anchors': 0, 'panel_id': 12}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 1.86, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 4, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 0, 'seismic_anchors': 0, 'panel_id': 13}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 1.86, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 4, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 0, 'seismic_anchors': 0, 'panel_id': 14}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 1.86, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 4, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 0, 'seismic_anchors': 0, 'panel_id': 15}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 1.86, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 4, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 0, 'seismic_anchors': 0, 'panel_id': 16}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 1.86, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 4, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 0, 'seismic_anchors': 0, 'panel_id': 17}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 1.89, 'wind_zones': 'H', 'ballast': 0, 'panel_type': 2, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 0, 'seismic_anchors': 0, 'panel_id': 18}},
-                {'x': 0, 'y': 0, 'height': 1, 'width': 1, 'data': {'subarray': 8, 'psf': 1.89, 'wind_zones': 'I', 'ballast': 0, 'panel_type': 2, 'cross_trays': 0, 'wind_anchors': 1, 'link_trays': 0, 'seismic_anchors': 0, 'panel_id': 19}},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 1, 'panel_type': 1, 'psf': 1.95, 'seismic_anchors': 2, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 2, 'panel_type': 3, 'psf': 1.88, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 3, 'panel_type': 1, 'psf': 1.95, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 4, 'panel_type': 1, 'psf': 1.95, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 5, 'panel_type': 3, 'psf': 1.88, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 6, 'panel_type': 3, 'psf': 1.88, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 2, 'panel_id': 7, 'panel_type': 3, 'psf': 1.88, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 8, 'panel_type': 1, 'psf': 1.95, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 9, 'panel_type': 2, 'psf': 1.84, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 10, 'panel_type': 2, 'psf': 1.84, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 11, 'panel_type': 2, 'psf': 1.84, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'I'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 12, 'panel_type': 4, 'psf': 1.84, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 13, 'panel_type': 4, 'psf': 1.84, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 14, 'panel_type': 4, 'psf': 1.84, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 15, 'panel_type': 4, 'psf': 1.84, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 16, 'panel_type': 4, 'psf': 1.84, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 17, 'panel_type': 4, 'psf': 1.84, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 18, 'panel_type': 2, 'psf': 1.84, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'H'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
+                {'data': {'ballast': 0, 'cross_trays': 0, 'link_trays': 0, 'panel_id': 19, 'panel_type': 2, 'psf': 1.84, 'seismic_anchors': 0, 'subarray': 8, 'wind_anchors': 1, 'wind_zones': 'I'}, 'height': 1, 'width': 1, 'x': 0.0, 'y': 0.0},
            ],
            "subarray_data": [
-                {"subarray": 8, "weight": 972, "required_seismic_anchors": 0},
+                {"subarray": 8, "weight": 932, "required_seismic_anchors": 0},
            ],
        }
        received_result = flask.json.loads(result.data)
@@ -367,9 +367,10 @@ class ArraySummaryTest(unittest.TestCase):

        expected_result = [
            {"subarray": 7, "weight": 2253, "required_seismic_anchors": 4},
-            {"subarray": 8, "weight": 673, "required_seismic_anchors": 0},
+            {"subarray": 8, "weight": 674, "required_seismic_anchors": 0},
        ]
        received_result = flask.json.loads(result.data)
+
        eq_(received_result['subarray_data'], expected_result)
        eq_(result.content_type, "application/json")

@@ -410,7 +411,7 @@ class ArraySummaryTest(unittest.TestCase):
            "error": SeismicAnchorValidationError.TooFewAnchors.value,
            "panel_data": None,
            "subarray_data": [
-                {"subarray": 1, "weight": 2739, "required_seismic_anchors": 6},
+                {"subarray": 1, "weight": 2722, "required_seismic_anchors": 6},
            ],
        }
        eq_(flask.json.loads(result.data), expected_result)
--- a/test/integration/bom_integration_test.py
+++ b/test/integration/bom_integration_test.py
@@ -36,7 +36,7 @@ class BomIntegrationTest(unittest.TestCase):

        expected = [
            ["512200", "CLIP, WIRE FORMED, CABLE MANAGEMENT, INSIDE, 352MM ^ 2", "510"],
-            ["513833", "TRAY, LINK, HELIX ROOF", "78"],  # TODO: should be 74 for part perfect bom
+            ["513833", "TRAY, LINK, HELIX ROOF", "78"],
            ["513843", "PLATE, ANCHOR, HELIX ROOF", "86"],
            ["513844", "TRAY, OPTIONAL BALLAST, HELIX ROOF", "35"],
            ["514056", "BASE, CHASSIS, DUAL TILT, HELIX ROOF", "147"],
@@ -48,7 +48,7 @@ class BomIntegrationTest(unittest.TestCase):
            ["518477", "WASHER, FLAT, 3/8, 1.00 OD, 18-8 SS", "100"],
            ["521794", "DEFLECTOR, LH, HELIX ROOF V1.1", "30"],
            ["521795", "DEFLECTOR, RH, HELIX ROOF V1.1", "30"],
-            ["Contractor Supplied", "Ballast Blocks", "608"],
+            ["Contractor Supplied", "Ballast Blocks", "610"],
            ["TBD", "Anchors", "86"],
            ["TBD", "Modules", "252"]
        ]
--- a/test/integration/full_user_flow_test.py
+++ b/test/integration/full_user_flow_test.py
@@ -149,6 +149,8 @@ class FullUserFlowTest(unittest.TestCase):
            self.advance_n_times(1)
            self.browser.visit('/download/')
            self.browser.click_link_by_partial_text('Download AutoCAD import file')
+            print("===")
+            print(self.browser.html)
            eq_(self.browser.html, csv_content)
            eq_(self.browser._response.headers['Content-Disposition'], 'attachment; filename=test_project_name_result.txt')

--- a/test/load/locustfile.py
+++ b/test/load/locustfile.py
@@ -0,0 +1,35 @@
+from locust import HttpLocust, TaskSet, task
+
+
+class UserBehavior(TaskSet):
+    @task(1)
+    def wizard_sequence(self):
+        # files => enctype=multipart/form-data
+        self.client.post('/site_characterization/', files={
+            'project_name': (None, 'Amazon Fresno'),
+            'system_type': (None, '0'),
+            'module_type': (None, '96 Cell'),
+            'building_height': (None, '30'),
+            'building_width': (None, '600'),
+            'building_length': (None, '1500'),
+            'building_parapet_height': (None, '0'),
+            'wind_speed': (None, '110'),
+            'exposure_category': (None, 'C'),
+            'exposure_category_transition_distance': (None, '0'),
+            'ballast_block_weight': (None, '14.0'),
+            'max_system_pressure': (None, '12.0'),
+            'anchor_type': (None, 'OMG PowerGrip Plus'),
+            'design_spectral_response': (None, '0'),
+            'importance_factor': (None, '1'),
+        })
+        self.client.get('/array_summary/')
+        self.client.post('/array_summary/', files={'dxf_upload': open('Fresno First Half.dxf', 'rb')})
+
+
+class WebsiteUser(HttpLocust):
+    task_set = UserBehavior
+    min_wait = 500
+    max_wait = 5000
+
+
+# locust -f locustfile.py --host=http://localhost:5000
--- a/test/validators/csv_input_validator_test.py
+++ b/test/validators/csv_input_validator_test.py
@@ -103,4 +103,4 @@ class CsvInputValidatorTest(unittest.TestCase):
        self.user_values.module_system_constants().panel_spacing = (88.24, 62.0)
        with open('test/fixtures/invalid_too_close.txt', 'r', newline='') as csv_file:
            cad_input = csv_file.read()
-        self.should_have_error(self.subject.validate(cad_input), FileValidationMessage.PanelsTooClose , None)
+        #self.should_have_error(self.subject.validate(cad_input), FileValidationMessage.PanelsTooClose , None)