CMS Energy Corporation’s business strategy is focused primarily on its principal subsidiary, Consumers Energy Company, Michigan’s largest electric and natural gas utility, serving 6.7 million of the state’s 10 million residents. With our subsidiary, CMS Enterprises Company, we are also engaged in independent power generation in several states. Our business also includes EnerBank® USA, which specializes in providing unsecured home improvement payment option programs for homeowners through nationwide dealer networks.

Consumers Energy provides electric service to 1.8 million customers in 62 of Michigan’s Lower Peninsula counties. Among the largest cities served are Battle Creek, Bay City, Cadillac, Flint, Grand Rapids, Jackson, Kalamazoo, Midland, Muskegon and Saginaw.

In addition to the generating plants that produce the majority of electricity for customers, Consumers Energy is a leader in developing renewable energy in Michigan. Its Green Generation™ initiative is the largest renewable energy program in Michigan.

Consumers Energy provides natural gas service for heating and other uses to nearly 1.8 million customers in 54 of the 68 counties in Michigan's Lower Peninsula. It serves an area that spans 13,000 square miles and includes 215 cities and villages. Among the largest areas served are Bay City, Flint, Jackson, Kalamazoo, Lansing, Macomb, Midland, Royal Oak, Saginaw and Livonia. More than one-half of the utility's gas customers are in metro Detroit.

The company has one of the largest underground natural gas storage capacities in the country.  This allows the company to economically purchase and store gas during warm months, for eventual use in the winter heating season.