Wind briefly powered more than 50 percent of electric demand on Feb. 12, the 14-state Southwest Power Pool (SPP) said, for the first time on any North American power grid.

SPP coordinates the flow of electricity on the high voltage power lines from Montana and North Dakota to New Mexico, Texas and Louisiana.

Wind power in the SPP region has grown significantly to over 16,000 MW currently from less than 400 megawatts in the early 2000s and is expected to continue growing. One megawatt can power about 1,000 homes.

Climate Central