What is a Kilowatt Hour?

Kilowatt hours (KWh) is the measurement used that shows hom much energy a home or building uses.  On your electricity bill you will see the monthly KWh used for the period multiplied by the rate that you are being charged to determine the bill amount.

KWh defined is a unit of energy using 1 KW of power for a period of 1 hour.  Energy equal power multiplied by time.  If you turn on the lights in a room that has 10 1 KW light bulbs for 5 hours, then you have consumed 50 KWh.