By 2017, more than half of U.S. states could have rooftop solar that's as cheap as local electricity rates.Rooftop solar costs are falling
Since 2007, the cost of installing an average-sized rooftop solar system has nearly halved. In fact, after accounting for tax credits, rebates, and other support, in leading states a 5 kilowatt system could cost homeowners less than $10,000.
Many homeowners have the option of leasing, potentially paying nothing for installation and instead paying ongoing monthly fees.
Solar is increasingly affordable everywhere read more>>>
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