Xcel Energy, the multi-state US utility based in Minnesota, on Tuesday unveiled a proposal to add 1,230MW of new wind to its system in New Mexico and Texas, building on the 1,550MW wind expansion plan it laid out only last week for the Upper Midwest.

Coming on top of the 600MW Rush Creek project Xcel is about to begin building in Colorado, the investor-owned utility’s wind programme now includes plans for 3,380MW of new capacity by the time the full production tax credit disappears at the end of 2020.