Casper, Wyo. • Utility Rocky Mountain Power intends to expand in four Wyoming counties, growing its wind development in the state by 60 percent.

The Casper Star-Tribune reports that the Salt Lake City-based utility on Tuesday said it’s pushing wind development and transmission in Wyoming ahead of a 2020 deadline in order to take advantage of federal tax credits.

The largest wind farm will be a 500 megawatt project in Carbon and Albany counties. A 250 megawatt facility will also be built in Carbon County, while a 400 megawatt project is coming to Converse County and a 161 megawatt farm to Uinta County.