The Watt-hour (Wh) is a unit of energy commonly used in the electrical industry to measure the amount of energy that an appliance consumes. It is equal to the power consumed by an appliance in one hour if it operates at a constant voltage and current.

The Milliwatt-hour (mWh) is a unit of energy commonly used in the electrical industry to measure the amount of energy that an appliance consumes. It is equal to one thousandth of a Watt-hour, or one thousandth of a Wh. The Kilowatt-hour (kWh) is a unit of energy commonly used in the electrical industry to measure the amount of energy that an appliance consumes. It is equal to 3,600 Wh or 3,600 Joules per hour. The Megawatt-hour (MWh) is a commonly used unit of energy in electric power generation that equals 3.6 megajoules. One watt-hour (Wh) equals 1 joule/second.One kilowatt-hour (kWh) equals 3,600 Wh.

Gigawatt-hour (GWh) is equal to one billion kWh.The Gigawatt-hour (GWh) is a commonly used unit of energy in electric power generation that equals 3.6 terajoules. One watt-hour (Wh) equals 1 joule/second.One kilowatt-hour (kWh) equals 3,600 Wh.