SolarCity Installs Its First Thin-Film Solar Home

SolarCity, a solar installer and financier based in Foster City, Calif., has installed one of the country’s first thin-film solar projects on a residential roof.The company installed 2.4 kilowatts worth of First Solar cadmium-telluride panels on a home in San Mateo, Calif., last week, SolarCity’s director of product marketing, Ben Tarbell, told me. The project will be connected to the grid in January, when it can take advantage of the expanded federal tax credits that Congress approved in October.The system is expected to produce 3,348 kilowatt-hours annually, which is about 30.3 percent of the 11,040 kilowatt-hours the average household uses per year, according to the U.S. Energy Information Administration.

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