Hardware now accounts for about 20% of U.S. residential system prices, leaving permitting and interconnection as major cost drivers.

PITTSBURGH (KDKA) — The family of a Pittsburgh-area man battling cancer got a free solar system that he hopes will help his family with their energy bills. Working on a Sunday in below-freezing ...

Maricela Santacruz and her family never really considered investing in a rooftop solar system at their home in the southeastern San Diego neighborhood of Lomita, thinking it was too expensive — ...