CMS vs DUK

CMS Energy Corporation

CMS Energy Corporation operates as an energy company primarily in Michigan. The company operates through four segments: Electric Utility, Gas Utility, Enterprises, and EnerBank. The Electric Utility segment is involved in the generation, purchase, transmission, distribution, and sale of electricity. This segment generates electricity through coal, wind, gas, renewable energy, oil, and nuclear sources. Its distribution system comprises 205 miles of high-voltage distribution overhead lines; 4 miles of high-voltage distribution underground lines; 4,428 miles of high-voltage distribution overhead lines; 19 miles of high-voltage distribution underground lines; 77,833 miles of electric distribution overhead lines; 9,264 miles of underground distribution lines; 1,096 substations; and 2 battery facilities. The Gas Utility segment engages in the purchase, transmission, storage, distribution, and sale of natural gas, which includes 2,410 miles of transmission lines; 15 gas storage fields; 27,958 miles of distribution mains; and 8 compressor stations. The Enterprises segment is involved in the independent power production and marketing, including the development and operation of renewable generation. It owns interests in independent power plants totalling 1,838 megawatts. The EnterBank segment operates an industrial bank providing unsecured installment loans for financing home improvements. It serves 1.9 million electric and 1.8 million gas customers, including residential, commercial, and diversified industrial customers. CMS Energy Corporation was founded in 1987 and is headquartered in Jackson, Michigan.

Duke Energy Corporation (Holding Company)

Duke Energy Corporation, together with its subsidiaries, operates as an energy company in the United States. It operates through three segments: Electric Utilities and Infrastructure, Gas Utilities and Infrastructure, and Commercial Renewables. The Electric Utilities and Infrastructure segment generates, transmits, distributes, and sells electricity in the Carolinas, Florida, and the Midwest; and uses coal, hydroelectric, natural gas, oil, renewable sources, and nuclear fuel to generate electricity. It also engages in the wholesale of electricity to municipalities, electric cooperative utilities, and load-serving entities. This segment serves approximately 7.9 million retail electric customers in 6 states in the Southeast and Midwest regions of the United States covering a service territory of approximately 91,000 square miles; and owns approximately 50,807 megawatts (MW) of generation capacity. The Gas Utilities and Infrastructure segment distributes natural gas to residential, commercial, industrial, and power generation natural gas customers; and owns, operates, and invests in pipeline transmission and natural gas storage facilities. It has approximately 1.6 million customers, including 1.1 million customers in North Carolina, South Carolina, and Tennessee, as well as 541,000 customers in southwestern Ohio and northern Kentucky. The Commercial Renewables segment acquires, owns, develops, builds, and operates wind and solar renewable generation projects, including nonregulated renewable energy and energy storage services to utilities, electric cooperatives, municipalities, and commercial and industrial customers. It has 21 wind, 150 solar, and 2 battery storage facilities, as well as 11 fuel cell locations with a capacity of 2,282 MW across 19 states. The company was formerly known as Duke Energy Holding Corp. and changed its name to Duke Energy Corporation in April 2005. The company was incorporated in 2005 and is headquartered in Charlotte, North Carolina.