Grist reports on red flags to watch for in door-to-door solar sales, including licensing issues, misleading claims, and system mismatches.

Demand for home solar has surged since Trump repealed a federal tax credit worth about $8,000 per household by the year’s end ...

First Solar, the biggest U.S.-based solar panel maker, beat expectations for third-quarter sales on Thursday, driven by robust demand for its products, sending its shares up more than 5% in extended ...

PHILADELPHIA — The solar power industry is booming and that growth helps the world meet its climate goals by replacing fossil fuels. But an emerging problem in the U.S. solar business that installs ...

One of the largest residential solar installers in the U.S. appears to be on the cusp of failing, the latest sign of the troubled industry’s struggles. SunPower, which is backed by French oil ...