kilowatt hour is the unit of?
Kilowatt-hour definition. Kilowatt-hour is an energy unit (symbol kWh or kW⋅h). One kilowatt-hour is defined as the energy consumed by power consumption of 1kW during 1 hour 1 kWh = 1kW ⋅ 1h. One kilowatt-hour is equal to 3.6⋅10 6 joules 1 kWh = 3.6⋅10 6 J. The energy E in kilowatt-hour (kWh) is equal to the power P in kilowatts (kW) times the time t in hours (h). E (kWh) = P (kW) ⋅ t (h)