@Override
 public int getTotalEnergyMeterValue() {
   List<CachedMeteringValue> cachedEnergyMeteringValues =
       digitalSTROMClient.getLatest(
           connMan.getSessionToken(), MeteringTypeEnum.energy, meters, MeteringUnitsEnum.Wh);
   if (cachedEnergyMeteringValues != null) {
     tempEnergyMeter = 0;
     for (CachedMeteringValue value : cachedEnergyMeteringValues) {
       tempEnergyMeter += value.getValue();
     }
     if (tempEnergyMeter != totalEnergyMeter) {
       totalEnergyMeter = tempEnergyMeter;
     }
   }
   return totalEnergyMeter;
 }
 @Override
 public int getTotalPowerConsumption() {
   List<CachedMeteringValue> cachedConsumptionMeteringValues =
       digitalSTROMClient.getLatest(
           connMan.getSessionToken(), MeteringTypeEnum.consumption, meters, MeteringUnitsEnum.W);
   if (cachedConsumptionMeteringValues != null) {
     tempConsumption = 0;
     for (CachedMeteringValue value : cachedConsumptionMeteringValues) {
       tempConsumption += value.getValue();
     }
     if (tempConsumption != totalPowerConsumption) {
       totalPowerConsumption = tempConsumption;
     }
   }
   return totalPowerConsumption;
 }