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.
Fights over whether homeowners can sell excess solar power back to utilities are raging across the country. But Pennsylvania's recent decision on net metering could be a model compromise.
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.
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.
