A kilowatt-hour (kWh) is a unit of energy that is equal to one kilowatt (1 kW) of power used for one hour. A kilowatt is a measure of power, and a kilowatt-hour is a measure of energy, which is the amount of power used over time.
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In layman's terms, a kWh of energy is equivalent to:
A 50-inch LED television has an energy consumption of approximately 0.016 kilowatt-hours (kWh) per hour of usage.
Most ovens have an energy consumption of around 2.3 kWh per hour of usage.
Electric dishwashers use around 2 kWh of energy per load.
An electric water heater typically uses between 380 to 500 kWh per month