Winter Chills Green Energy

Winter weather is cooling newfound enthusiasm for renewable energy, the New York Times reports. Solar panels get snowed up or suffer from lack of sunlight on short winter days, and biodiesel sometimes congeals in cold weather. Wintry weather is a plus for wind power, but turbines can get iced up and some observers say they hurl chunks of ice as they turn.

Green energy doesn't provide enough of the nation's power for the seasonal variations to be a problem yet, and the nascent renewable energy industry is working on ways to avoid the worst impacts of ice snow. Owners of solar panels say that clearing the snow off has become another winter chore—but one that's sometimes rewarded with lots of power from brilliant winter sunshine.
(More winter stories.)