Blog
21 Mar 09
Jon P.
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Ponder these four realities when you consider a new solar technology:
- Start your due diligence on a 10 year old roof. It is an extremely hostile environment. When I go up there just about the only thing I see that is still in good shape is corrosion-proof metal and glass.
- Does anyone remember TV antenna and sattelite dish rotators? How long did that mechanism last?
- High efficiency wins except where space is virtually unlimited. Roof space is generally not sufficient to meet a building's load for any structure over one story high.
- Customers don't buy solar cells -- so it doesn't matter what they cost per watt. The only things that matters to the customer are the total installed cost per watt of the entire *system* and lifecycle energy output.
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