Hvor meget energi kan der spares ved at bruge nøglekortstrømafbrydere?
How much energy can be saved by using key card power switches?
Ifølge denne effektberegning, hvis hotellet har 100 værelser, er den samlede effekt, der kan spares, ca.: 1300W=1.3KW. Hvis el-enheden er 0.1 US dollars, og hvert værelse kun behøver at spare 1 times strøm om dagen. Efter at have vedtaget den valgte nøglekortlyskontakt, vil hotellet årligt spare elomkostninger: 1.3 kilowatt × 100 værelser × 1 time/dag × 365 dage × 0.1 amerikanske dollars / pr. kilowatt-time = 4745 amerikanske dollars.
According to this power calculation, if the hotel has 100 rooms, The total power that can be saved is about: 1300W=1.3KW. If the electricity unit is 0.1 US dollars, and each room only needs to save 1 hour of electricity per day. After adopting the select key card light switch, the hotel will annually save electricity costs: 1.3 kilowatts × 100 rooms × 1 hour/day × 365 days × 0.1 US dollars / per kilowatt-hour = 4745 US dollars.