CMS Energy Corporation is an energy provider whose primary operations are based in Michigan. Its business activities are organized into three divisions: Electric Utility, Gas Utility, and Enterprises. The Electric Utility division handles the entire process of electricity, from its generation, acquisition, and transmission, to its distribution and eventual sale. Power is generated from a diverse mix of sources, including coal, wind, natural gas, various renewable technologies, oil, and nuclear energy. This segment's robust electric distribution infrastructure features approximately 96,000 miles of various overhead and underground lines (including high-voltage circuits), alongside 1,093 substations and three battery storage facilities, ensuring efficient power delivery. The Gas Utility division is responsible for the acquisition, transmission, storage, distribution, and sale of natural gas. Its network encompasses nearly 2,400 miles of transmission lines, 15 gas storage facilities, over 28,000 miles of distribution mains, and 8 compressor stations. The Enterprises segment focuses on independent power generation and energy marketing, notably encompassing the development and operation of renewable energy projects. The corporation supplies electricity to 1.9 million customers and natural gas to 1.8 million customers, a base that spans residential households, commercial businesses, and a variety of industrial clients. Established in 1987, the company maintains its headquarters in Jackson, Michigan.