how many kilowatts needed for tesla
The bigger Powerwall has 10 kWh. Yes, this is a unit of energy and not power. It says that you could get a power of 10 kilowatts for 1 hour. You can convert this energy to Joules if you like â it would be 3.6 x 10 7 Joules (1 watt is a Joule/second).