Solar shingles are nailed directly to a building’s roof, just like a typical roof shingle, and can therefore cover the entire rooftop. All of these shingles together can produce enough power to provide for a home’s electrical needs, granted there is enough sunshine. If more solar power is generated than the home requires, home owners can sell that unused solar power back to the electric utility for federal and state tax incentives. Although the installation and upkeep of these solar shingles is still quite expensive, the cost of producing this sun energy has fallen 95 percent since the 1970s and is continuing to drop. In the long run, solar energy saves a home owner on their electric bill, especially with those who reside in sunnier locations.
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