Define kilowatt-hour (kWh). What is its relation with joule? How can you calculate energy in kWh by a formula?

Kilowatt-Hour (kWh) A kilowatt-hour (kWh) is a unit of energy that is commonly used to measure electrical energy consumption. It represents the amount of energy consumed by a device with a power rating of 1 kilowatt (kW) operating for 1 hour. In simpler terms, 1 kWh is the energy used when a 1,000-watt device runs … Read more