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Megawatt-hours
Abbreviation/Symbol:
MWh
Unit of:
Energy and power
Worldwide use:
Widely used in electricity generation and distribution eg for billing business customers
Definition:
A megawatt hour is equivalent to a power of 1,000,000 Watts being applied for an hour
Origin:
The kilowatt hour was originally known in the UK as the Board of Trade unit. This term derives from the name of the board that regulated the electricity industry in the UK until 1942
Common references:
A 100W light bulb left on continually for a year (in a non-leap-year) generates .876MW
Usage context:
Megawatt hours are commonly used for measuring electrical power - particularly in electrical generation and transmission and commercial electricitysupply.