What is a Kilowatt hour (kWh)?

A kilowatt hour (kWh) is a measure of how much energy is being used. It is the way we measure energy in the home.
1 kilowatt hour is the amount of energy it takes to run a 1,000 watt (or 1 kWh) appliance for 1 hour.

Think of the battery in an electric vehicle like a gas tank in a regular car. The bigger the tank, the more gas it can hold and the farther you can drive.
Your electric vehicle has a battery with a capacity that is defined in kWh, for instance 40kWh. This simply means that you can store up to 40 kWh of energy in your battery.

This also determines how much mileage you’ll get with a fully charged battery. For a 40 kWh battery it will range between 300 and 350 km.
Always check the information from your car manufacturer to get the latest information. 

kW stands for kilowatt, which is a measure of how much power an appliance needs to run. 
A kilowatt is 1,000 watts or 1 kW. 

So, 1 kWh is the amount of energy it takes to run a 1,000 watt (or 1kW) appliance for 1 hour.