1000 watts is equal to **1 kilowatt** (kW).
The prefix "kilo-" comes from the metric system, where it denotes a factor of 1000. So, when we say 1 kilowatt (1 kW), we are referring to 1000 watts (W).
This unit is commonly used to measure the power consumption or generation of electrical devices, such as appliances, engines, and electrical generators. For example, a 1 kW electric heater consumes 1000 watts of electrical power when running.