U.S. Solar Jumps 30% as Residential Installs Exceed 1 Gigawatt

Solar panel during construction in St. Ansgar, Iowa.

Photographer: Daniel Acker/Bloomberg

Demand for U.S. solar power increased 30 percent in 2014 as residential installations for the first time surpassed 1 gigawatt, according to the Solar Energy Industries Association and GTM Research.

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