Steve Dowdy

Calpine Corp. operates as power generation company, which engages in the ownership and operation of natural-gas fired and geothermal power plants. It sells power and related services to wholesale customers who include commercial and industrial end-users, state and regional wholesale market operators, and retail customers. The company was founded by Peter Cartwright in June 1984 and is headquartered in Houston, TX.

Invenergy LLC develops, owns, and operates power generation facilities. It offers financing, construction, ownership and operations, environment, and community engagement services. The firm develops and operates wind, solar, natural gas, combined heat and power generation, and energy storage projects. The company was founded by Michael Polsky in 2001 and is headquartered in Chicago, IL.

Mainstream Renewable Power Ltd. develops, finances, constructs, and operates renewable energy plants for global consumer brands like IKEA, utilities, and investment companies. It develops onshore and offshore wind and solar projects. The company was founded by Eddie O'Connor and Fintan Whelan in February 2008 and is headquartered in Dublin, Ireland.

Part of Invenergy LLC, Invenergy Services LLC develops and operates sustainable energy solutions. The company is based in Chicago, IL. The company was founded in 2005 by Michael P. Polsky, Jim Murphy, Mónica Carballeira. Michael P. Polsky has been the CEO since 2005.