The rise and fall of the U.S. wind industry, in one chart

Brad Plumer, The rise and fall of the U.S. wind industry, in one chart.

"To get a sense of the wind boom over the past two decades — and how Congress and the states have nurtured it — check out this new chart from the U.S. Energy Information Administration. It shows the policies that have led to boom and bust cycles over the years. (PTC stands for production tax credit, which subsidizes new wind generation by 2.2 cents per kilowatt-hour):"