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Non-Tech : Alternative energy

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To: Stan who wrote (4713)	4/30/2008 1:52:53 PM
From: Feraldo	Read Replies (3) of 16955

I'm making an Excel sheet that should figure out when this is all paid off. So here are the variables I have come up with so far. Can anybody think of any others I need? Current cost per kwh electric Interest rate (assuming borrowing money) Down payment Electric cost inflation KWH used per month Avg sun hrs/day Watts per panel # of panels cost per panel Cost of grid tie kit Installation fees (what my friend and I would charge to install) Square meters of panel The idea is to see how long it would take to pay off the solar panels and have the customer make money on their investment. feraldo

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