2007-01-25 05:42:19 · 6 answers · asked by Snap 1 in Home & Garden ➔ Other - Home & Garden
You have to know the bulb's wattage 'A' and the rate you are paying for electricity 'B' (in cents per kilowatt-hour) from your electric bill.
Once you know these then:
'B' x 1KW/1000W x 'A' x 8 hrs
2007-01-25 05:53:46 · answer #1 · answered by lunatic 7 · 0⤊ 0⤋
What wattage of 'standard' bulb??
If its a 100watt - 100 x 8 = 800 watt/hours or 0.8kw/h @ appx 12p per kw/h = 0.8 x 0.12p = about 10 pence.
60watt bulb 60 x 8 = 480 watt/hr . or 0.48 x 0.12p = about 6 pence.
2007-01-25 14:50:14 · answer #2 · answered by jayktee96 7 · 0⤊ 0⤋
if your worried about how much a lightbulb costs to run then you must be a right tightwad
2007-01-29 11:03:02 · answer #3 · answered by chrispi 2 · 0⤊ 0⤋
Good question, is it a normal build or a energy saving build?
2007-01-25 13:50:20 · answer #4 · answered by lister_larger 3 · 0⤊ 0⤋
i think about 2 pence.
2007-01-25 14:46:58 · answer #5 · answered by Anonymous · 0⤊ 1⤋
How high is up ???
2007-01-26 07:51:53 · answer #6 · answered by Anonymous · 0⤊ 0⤋