In this July 28, 2015, photo, electricians Adam Hall, right, and Steven Gabert, install solar panels on a roof for Arizona Public Service company in Goodyear, Ariz. Traditional power companies are getting into small-scale solar energy and competing for space. The emerging competition comes as utilities and smaller solar installers fight over the future of the U.S. energy system. (Matt York/Associated Press)
ALBUQUERQUE, N.M. — Traditional power companies are getting into small-scale solar energy and competing for space on your rooftop.
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