render daily energy graphs

client/models/energy_datum.js

@@ -38,7 +38,7 @@ class EnergyDatum {
 
   update(data){
     var energy_datum = this,
-      house = power_datum.house;
+      house = energy_datum.house;
     if (data.day) data.day = moment.tz(data.day, house.data.timezone);
     extend(energy_datum.data, data);
   }

client/models/house.js

@@ -84,6 +84,7 @@ class House {
     if (date_range.length === 0) return house.getEnergyData({dates: [[opts.start_date, opts.end_date]]})
 
     query_ranges = MathUtil.minusRange([opts.start_date, opts.end_date], [min_date, max_date]);
+
     if (!query_ranges) return Promise.resolve(house.power_data);
 
     cache = ArrayUtil.selectMap(date_range, (datum_day)=>{