Kilovolt-Ampere (kVa)A unit of apparent power, equal to 1,000 volt-amperes; the mathematical product of the volts and amperes in an electrical circuit.
Kilowatt (kW)A standard unit of electrical power equal to one thousand watts, or to the energy consumption at a rate of 1000 Joules per second.
Kilowatt hour (kWh)A measure of energy equivalent to the expenditure of one kilowatt for one hour. For example, 1 kWh will light a 100-watt light bulb for 10 hours.
Kinetic EnergyEnergy available as a result of motion that varies directly in proportion to an object's mass and the square of its velocity.