Watt Solar
February 1st, 2009
How much money will I save with a 150 watt solar panel?
I'm trying to figure out how to calculate how much money I will save each month, to figure out if it is a good idea to get a solar panel now or wait until until next year.
Say I have a 150 watt panel, I get 5.5 hours of peak sunlight, and I pay 5.8 cents per KWH.
What is the equation to figure out how much that will be?
150 watt x 5.5 hours x 365days/year x 1kw/1000w = 301kWhr/year
301kWhr/year x $0.058 = $17.47/year
Hope that helps!
(5.8 cents per KWH is an awesome price! Where do you live?)
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