Ameren Missouri is a branch of the Ameren energy corporation based in Missouri that provides gas and solar energy to residential, business and community customers. The company serves over 1.2 million customers in Missouri, including 130,000 gas customers. The company also operates related generation services and a goods wholesale branch.
The Ameren company was created through the merger of the Union Electric Company and the Central Illinois Public Service Company, and is based in St. Louis. Its Missouri branch has a generating capacity of 10,200 megawatts and provides the Missouri region with 3,600 energy jobs. The corporation is heavily involved in dock and seawall regulation in and around the Lake of the Ozarks.