watt-hour
Kilowatt-hour's smaller sibling
A watt-hour is a unit of energy equal to one watt of power sustained for one hour.
It measures total energy consumption rather than instantaneous power: The battery stores 500 watt-hours.
Electric bills typically use kilowatt-hours (1,000 watt-hours).
A 100-watt bulb burning for 10 hours uses 1,000 watt-hours.
SI energy quantity
- calorieUnit of thermal energy
- kilocalorieUnit of food energy
- foot-poundUnit of work
- thermLarge energy unit
kilojoule · megajoule · erg · meter reading · unit · quantification
Act of employing something
- billingCharging for services rendered
- meteringControlled measurement of quantity
- appliancesPowered household equipment
- householdDomestic unit of residents
tariff · utilities · heating · cooling · lighting · refrigeration · charging · air-conditioning
Portable electricity storage
- capacityMaximum amount containable
- powerbankMobile charging device
- rechargeableAble to regain power
- cellBasic unit of life
discharge · lithium-ion · lead-acid · deep cycle · reserve · backup · UPS · energy density
Of the star
- windAir current outdoors
- hydroWater combining form
- renewableCapable of restoration
- photovoltaicLight-to-electricity converting
turbine · generator · inverter · grid · geothermal · biomass · green · sustainable
joule
SI energy quantity
- calorieUnit of thermal energy
- kilocalorieUnit of food energy
- foot-poundUnit of work
therm · kilojoule · megajoule · erg · meter reading · unit · quantification
usage
Act of employing something
- billingCharging for services rendered
- meteringControlled measurement of quantity
- appliancesPowered household equipment
household · tariff · utilities · heating · cooling · lighting · refrigeration · charging · air-conditioning · electronics
battery
Portable electricity storage
- capacityMaximum amount containable
- powerbankMobile charging device
- rechargeableAble to regain power
cell · discharge · lithium-ion · lead-acid · deep cycle · reserve · backup · UPS · energy density · runtime
solar
Of the star
photovoltaic · turbine · generator · inverter · grid · geothermal · biomass · green · sustainable · power plant
- unitsunit, angstrom, yard, meter, base units
- Electrical Unitsampere, volt, coulomb, ohm, farad
- batteriesrechargeable battery, AAAA, D cell, car battery, lithium-ion battery
watt-hourwatt
Unit measuring power
kilowatt · megawatt · power draw · power · electrical load