abbreviated to
kW-h, the kilowatt hour is the unit of energy sold by electric companies.
A kW-h is equivalent to the energy from 1 kilowatt over 1 hour.
So if 1
watt ==
1 Joule per
second, then 1 kilowatt ==
1000 joules per second.
1000 * 60 *60 == 1000 * 60
2 == 1000 * 3600 == 3600000
joules == 3.6
Megajoules (
MJ).
This is equivalent to the same amount of energy capable of transforming 1.19
kg (2.633 lbs) of
ice into water
vapor.
What a deal!
See also:
Space heaters are 100% efficient,
Power companies don't sell power