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Kilowatt (kW)

A unit of power, used for EV motor output and charging speed. 1 kW is about 1.34 HP.

A kilowatt measures power, the rate at which energy flows. EV spec sheets use it twice: for motor output, where 1 kW equals about 1.34 horsepower, and for charging speed, where more kW means a faster fill.

A 150 kW motor is roughly a 200 horsepower engine. On the charging side, a home Level 2 unit delivers 7 to 11 kW while highway fast chargers deliver 150 to 350 kW.