WEC Energy Group Incorporated provides regulated natural gas and electricity, and renewable and nonregulated energy services in the U.S.The company generates and distributes electricity from coal, natural gas, oil, hydroelectric, wind, solar, and biomass sources. It also provides electric transmission services, offers retail natural gas distribution services, transports natural gas, and generates, distributes, and sells steam. Known as Wisconsin Energy Corp. until 2015, WEC Energy was incorporated in 1981 and is headquartered in Milwaukee, WI.