Xcel Energy is a major U.S. electricity and natural gas company that provides a comprehensive portfolio of energy-related products   and services to 3.4 million electricity customers and 1.9 million natural gas customers through its regulated operating companies in eight Western and Midwestern states.   Xcel Energy is committed to reducing its impact on the environment by cutting emissions, promoting conservation and using more wind power and renewable energy. Xcel Energy is the No. 1 wind power provider in the United States.