The units are not interchangeable: a kilowatt is a unit of power, and a kilowatt-hour (one kilowatt applied for one hour) is a unit of energy. Example: A 100 watt bulb is, at any given time, using...
Kilowatt hour (KWH) is unit of energy. Kilowatt (KW) is unit of power. The KWH generated/consumed over a certain period (in hours) is the result of power integration over this time period.
You can't convert between units of power and units of energy. If you divide 1 kWh / 1 kW, you get an hour, which is a unit of time. Kilowatts is a unit of power; kilowatt-hours is a unit of energy.
These are three different type of units; the kilowatt hour is a measure of energy, kilowatt a measure of power and the amp a measure of current. or That is an easy one. If you plug a 100 watt bulb...