A kilowatt (kW) is a measure of power, which is the rate at which something uses energy. It is equal to 1,000 watts. Kilowatts are used to measure the power consumption of electric appliances. For example, a 1,000-watt appliance consumes 1 kW of power.

On the other hand, a kilowatt-hour (kWh) is a measure of energy, which is the capacity to do work. It measures the amount of energy that an appliance or device needs to run for one hour. For example, if you clean your floors with a 1,000-watt vacuum cleaner for one hour, you consume 1 kWh of energy. Your kilowatt-hour consumption factors in how many watts your appliances use and how often you use them.

The difference between kW and kWh is that kW reflects the rate of electricity you use, and kWh indicates the amount of electricity you use. To calculate kWh, you multiply the power consumption in kW by the number of hours the appliance is used. For example, if you charge your electric vehicle with a 22 kW car charger for one hour, you will consume 22 kWh of energy.

In summary, a kilowatt is a measure of power, while a kilowatt-hour is a measure of energy. Kilowatts are used to measure the power consumption of electric appliances, while kilowatt-hours are used to measure the amount of energy an appliance uses over time.