The simple answer: A kilowatt (kW) is a measure of 1,000 watts of electrical power.
What’s the difference between kWh and kW?
Simply put, a kilowatt is the measurement of power while a kilowatt hour (kWh) is the length of time something can use a kW. One kilowatt hour is equal to one thousand watts sustained for one hour.
While that still sounds technical, let’s use a real example. If you take a 60-watt light bulb, it tells us that it sustains 60 watts of energy as it is used. That means the light bulb is about .06% of 1000 watts, which translates to .06kWh.