The groups say preparations for construction of a commercial-scale wind turbine by the Ohio National Guard have already violated the Endangered Species Act.
Donald Trump has promised a renaissance for the coal industry. But analysts say the market forces causing the decline of coal and the rise of renewables may be difficult to stop.
Natural gas will be a chief energy export in Pennsylvania for years to come. But the state's vast and largely untapped wind resources could also add to the state's reputation as a major energy player.
Solar and wind power are generally only useful when the sun is shinning or the wind is blowing. But new battery technologies could help renewables become a full-time power source.
Democratic lawmakers have negotiated a five-year extension of federal wind and solar incentives designed to encourage more renewable energy production in the U.S.
