what is the difference between a kilowatt and a megawatt
For starters, a Kilowatt (kW) is just one thousand watts, just like a megawatt (mW) is one million watts. A watt (W) is a measurement of POWER. To be precise it's using one joule per second. kilowatt is a unit of power, while a kilowatt hour is a unit of  energy. Power is the rate that energy is used. This means that  something that operates at 1 kilowatt for â¦ 1 hour uses 1 kilowatt  hour of energy.