Energy: Difference between revisions

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	Energy is ~~the~~ ''work done''. It is [[power]] × time.		Energy is ''work done''. It is [[power]] × time.

	Electrical energy is power (most commonly stated in watts) times a unit of time (most commonly one hour: watt-hours). 1,000 watt-hours equals one kilowatt-hour (kWh), which is the amount of power in watts transferred (or used) over 1 hour divided by 1,000. A MWh is equal to 1,000 kWh or 1,000,000 watt-hours. All other metric prefixes can also be applied, e.g., giga (G, billion), tera (T, trillion), and peta (P, quadrillion).		Electrical energy is power (most commonly stated in watts) times a unit of time (most commonly one hour: watt-hours). 1,000 watt-hours equals one kilowatt-hour (kWh), which is the amount of power in watts transferred (or used) over 1 hour divided by 1,000. A MWh is equal to 1,000 kWh or 1,000,000 watt-hours. All other metric prefixes can also be applied, e.g., giga (G, billion), tera (T, trillion), and peta (P, quadrillion).