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What is the commercial unit of electrical energy ?
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Answer Posted / sanju
kW h
The SI unit joule is too small to express very large quantities of energy. Hence we use a bigger unit called kilowatt hour (kWh) to express energy.The kilowatt hour, or kilowatt-hour, (symbol kW•h, kW h or kWh) is a unit of energy equal to 1000 watt hours or 3.6 megajoules.[1][2] For constant power, energy in watt hours is the product of power in watts and time in hours. The kilowatt hour is most commonly known as a billing unit for energy delivered to consumers by electric utilities
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