China’s clean energy boom is saddled with a major challenge: what to do with all its old wind and solar equipment. The country, which is the world leader in renewable energy capacity, has built solar ...

Three years ago, a massive spinning blade flew off a towering turbine at Portland General Electric’s flagship wind farm in Sherman County, bringing scrutiny to the many maintenance problems, safety ...

Federal agencies are delaying approvals for renewable energy projects on both federal land and private property at a time when electricity demand is going up. By Brad Plumer and Rebecca F. Elliott A ...