A kilowatt-hour (kWh) is a unit of energy equal to using 1 kilowatt of power for 1 hour. Utilities bill electricity usage in kWh, so it helps estimate operating costs for HVAC and water heating systems. Understanding kWh makes it easier to compare efficiency and track savings.
/ˈkɪloʊˌwɑːt ˈaʊər/
A kilowatt-hour (kWh) is a unit of energy equal to using 1 kilowatt of power for 1 hour. Utilities bill electricity usage in kWh, so it helps estimate operating costs for HVAC and water heating systems. Understanding kWh makes it easier to compare efficiency and track savings.
What does kWh measure?
It measures energy use over time and is how utilities bill electricity.
Source: The Cooling Company
kWh measures energy use over time and drives utility costs.
An air conditioner using 1.5 kW for 8 hours consumes 12 kWh of electricity.
Track kWh on utility bills to see the impact of HVAC upgrades and usage habits.
“Track kWh on utility bills to see the impact of HVAC upgrades and usage habits.”
Peak-rate pricing means the same kWh can cost more at certain times of day.
How do I reduce kWh usage?
Upgrade to efficient equipment, seal ducts, and optimize thermostat settings.
Is kWh the same as kW?
No. kW is power; kWh is energy over time.
Why does my kWh use spike in summer?
Cooling systems run longer and use more energy during hot weather.
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