don't request sum, only change

Author: Tommatheussen

src/energy/index.ts

@@ -378,11 +378,9 @@ const getEnergyData = async (hass: HomeAssistant, prefs: EnergyPreferences, star
   };
 
   const _energyStats: Statistics | Promise<Statistics> = energyStatIds.length
-    ? fetchStatistics(hass!, startMinHour, end, energyStatIds, period, energyUnits, ['sum'])
     ? fetchStatistics(hass!, startMinHour, end, energyStatIds, period, energyUnits, ['change'])
     : {};
   const _waterStats: Statistics | Promise<Statistics> = waterStatIds.length
-    ? fetchStatistics(hass!, startMinHour, end, waterStatIds, period, waterUnits, ['sum'])
     ? fetchStatistics(hass!, startMinHour, end, waterStatIds, period, waterUnits, ['change'])
     : {};