DIY Solar. Love it. Just don’t let your homeowner’s association see it.

In other news, at the American Solar Energy Society conference in Cleveland last week, First Solar — the same First Solar that recently announced the sale of $1.28 billion worth of modules — gave a presentation in which they announced that based on current cost curves, they will be selling around $1.25/W in the 2010-2012 time frame.

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That, friends, is cheap solar. If the industry can continue to bring down installation costs commensurately — and that is done by developing local solar programs, creating local solar markets, and investing in local solar installers — then solar will be at grid parity in a lot of locales.

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