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Increasing numbers of people are putting their roofs to work generating electricity. And that does not necessarily mean installing unsightly steel-and-glass solar energy modules.
Today you can get photovoltaic shingles (or tile, or slate) that will do the job and still look like a roof.
For instance, the National Institute of Standards and Technology has been testing various forms of photovoltaic roofing products for the past year on roofs in Maryland to calibrate their output. Brian Dougherty, project manager, said the test includes tile (popular in the Southwest), slate (popular in Europe) and shingle (popular everywhere). All of them have inactive areas where the roofer can drive nails and not short out any circuits.
Additionally, California and New Jersey offer tax credits that actually make solar power economically sensible, Maycock added.
Other states offer less juicy tax credits, and the Federal taxman offers one that caps out at $2,000.
Originally posted by citizen smith
It will only be when there is an economy-of-scale in manufacture of the units that the cost-price per unit will fall within the range of the average wallet