how do I figure the cost of watts?
Can you help me figure this out. I know it should be fairly simple but I just don't seem to get it. Lets say I have a Kill A Watt. I plug something into that Kill A Watt and it reads 55 watts. How ...
Forum Discussion
horsepuller wrote:
Residential electricity customers are charged for energy, not power. Unit of power used is kilowatts, that is watts/1000. The electric company bills for kilowatt hours (kilowatts X hours used). Since watts are a unit of power, which is energy/time, watts X time causes time to cancel, giving energy.
So to calculate your electricity charges: (per 30 day month)
55 watt load/1000 = .055 kilowatts load
.055 kilowatt X 24 hours/day X 30 days = 39.6 kilowatt hours
39.6 kilowatt hours X $0.20/ kilowatt hour = $7.92
Hope this makes sense.
X2 and the units of energy are the Joule...
:B
