Question: is kwh a unit of energy?
Answer: A kilowatt hour (kWh) is a measure of how much energy you're using. ... It is simply a unit of measurement that equals the amount of energy you would use if you kept a 1,000 watt appliance running for an hour: So if you switched on a 100 watt light bulb, it would take 10 hours to rack up 1 kWh of energy.