Definition: Electric power
The amount of energy produced per second; the rate at which electric energy is transferred; commonly expressed in megawatts (MW).
- Electric power is the rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per second.Electric power is usually produced by electric generators, but can also be supplied by sources such as electric batteries. It is usually supplied to businesses and homes by the electric power industry through an electric power grid. Electric power is usually sold by the kilowatt hour (3.6 MJ) which is the product of power in kilowatts multiplied by running time in hours. Electric utilities measure power using an electricity meter, which keeps a running total of the electric energy delivered to a customer.Electrical power provides a low entropy form of energy and can be converted into motion or other forms of energy with high efficiency.
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