Based in Minneapolis, Minnesota, Xcel Energy operates in eight Western and Midwestern states. Xcel has 3.3 million electricity customers and 1.8 million natural gas customers through its regulated operating companies: Northern States Power Company Minnesota, Northern States Power Company Wisconsin, Public Service Company of Colorado and Southwestern Public Service Company. Xcel Energy is the fourth-largest combination natural gas and electricity company in the US in terms of customer volume.
Xcel Energy is a major US electricity and natural gas company with annual revenues of $7.9 billion. It operates 15,339 MW of generating capacity, 850 MW of which is wind power, making it the nation's second largest supplier of wind power after FPL Energy with 3100 MW.