CMS Energy 

CMS Energy Corporation (CMS) operates as a significant utility provider with its primary services concentrated in Michigan. The company's business is structured into three main divisions: Electric Utility, Gas Utility, and Enterprises. The Electric Utility segment encompasses the full spectrum of electricity operations, from generating power using a variety of sources—including coal, wind, natural gas, renewable energies, oil, and nuclear—to its subsequent purchase, transmission, distribution, and sale to customers. Its extensive electrical grid is supported by approximately 4,636 miles of high-voltage overhead distribution lines, 23 miles of high-voltage underground distribution lines, an additional 82,474 miles of electric overhead distribution lines, and 9,395 miles of underground distribution lines. This vast network also includes 1,093 substations and 3 battery storage facilities. The Gas Utility division is responsible for procuring, transmitting, storing, distributing, and selling natural gas. This segment's infrastructure features 2,392 miles of transmission pipelines, 15 natural gas storage fields, 28,065 miles of distribution mains, and 8 compressor stations. The Enterprises segment specializes in independent power generation and energy marketing, particularly focusing on the development and operation of renewable energy projects. CMS Energy serves a considerable customer base, providing electricity to 1.9 million clients and natural gas to 1.8 million clients, spanning residential, commercial, and diverse industrial sectors. The company was established in 1987 and its corporate headquarters are situated in Jackson, Michigan.