View Full Version : How much does it cost to run the lights?
Brian Hale
07-30-2005, 9:18 AM
.....is there a formula to figure out how it costs to have lights on?
Thanks
Brian :)
Dennis Peacock
07-30-2005, 10:46 AM
For me and my 1,200 sq ft shop with twelve 8' floresent lights, one 4' light, it runs me about $20 to $25 if I'm in the shop most every night of the week and Saturdays.
Ralph Barhorst
07-30-2005, 11:20 AM
.....is there a formula to figure out how it costs to have lights on?
There is a formula.
Count up the amount of wattage for the lights that are on.
example - 12 ea of 100 watt equals 1200 watts.
Look at your electric bill and determine the cost per kilowatt-hour. This is the cost to use 1000 watts for one hour.
(One kilowatt = 1000 watts)
The cost to operate the 12 lights would be 1200watts/1000 times the cost per kilowatt-hour.
If cost per kilowatt-hour is $0.10 then the cost of this example would be
1.2 X 0.10 = $0.12 per hour.
Brian Hale
07-30-2005, 1:38 PM
That's Exactly what i was looking for !!
Thanks a Bunch!
Brian :)
Randy Meijer
07-30-2005, 6:07 PM
As a "VERY" rough generality for folks who don't like much math, a 100 watt bulb costs about 1 penny per hour to run. In the summer they will cost you a little more because extra A/C will be required to remove the heat that they generate......offset in the winter by the reduced heating bill!!:D
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