Quote:
Originally Posted by solarguy
There's talk of .36 a watt solar panels on the horizon.
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Looks like about $1/ Watt right now.
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Astronergy CHSM 6610P 255-watt solar panel
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I am in zone 5.
4 hours of solar energy / day average. 2 hours in the winter.
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Solar Insolation Map
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I would need $12,000 in panels to charge 80 miles into a car during the winter. Versus $7 in gas. Or $3.80 from the grid. 250 round trips per year would be 12.5 years for pay back. Might be able to reduce my electric bill from surplus production on the better days and in the peak of summer. $200 per year? 10 year payback.
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Youch! A top of the line grid tie charge controller brings the 12.7kWh system to $20,000 with no batteries.
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http://www.wholesalesolar.com/system...m.html#Racking
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