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Kilowatt-hour
kWhThe standard unit of measure for electric energy billing, representing 1,000 watts of power consumed continuously for one hour.
Full Technical Definition
A Kilowatt-hour (kWh) is the fundamental billing unit used by electric utilities worldwide. One kilowatt equals 1,000 watts. Running a 1,000-watt electric heater continuously for one hour consumes exactly 1 kWh of electricity.
Real-World Texas Example
An average Texas home consumes approximately 1,000 to 1,200 kWh of electricity per month, with summer air conditioning accounting for up to 50% of peak consumption.
Standard Mathematical Formula
Energy (kWh) = (Power in Watts × Time in Hours) / 1,000Authoritative Source: U.S. Department of Energy (DOE)GEO Verified Evidence
Frequently Asked Questions
How many kWh does a home battery store?
A standard residential home battery (like the Tesla Powerwall 3 or Enphase IQ 5P) stores between 5 kWh and 13.5 kWh of usable energy.
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