Bloomberg
The top two US states for wind power installed their most turbines ever last year,
helping push up nationwide capacity growth to a seven-year high as tax benefits sent developers rushing projects into service.
Texas added almost 4 gigawatts and Iowa installed 1.7 gigawatts, expanding their lead in wind power capacity, according to a report from the American Wind Energy Association. That helped boost total US installations to 9.1 gigawatts last year, the most since the expiration of federal tax credits triggered a building boom in 2012.