|
1966 - 912 - SOLD
Join Date: May 2008
Location: oak grove, OREGON
Posts: 3,193
|
ok here it is..... watts X time X cost(per kwh) / 1000
this gives you the cost of any one item for a given amount of time used. a 60watt lamp on for 18 hours( average waking hours of a teenager) is 7 cents @ 6.5 cents per kwh.
|