Alex George

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.

Part of Calpine Corp., Calpine Northbrook Energy LLC is a company that develops, owns, and operates independent power projects. The company is based in NorthBrook, IL. Calpine Northbrook Energy was acquired by Calpine Corp. from Wisconsin Energy Corp. on October 18, 2000 for $450 million. The company was founded by Michael P. Polsky.

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.

Sargent & Lundy LLC engages in the provision of engineering, construction management, and consulting services. It offers nuclear power, coal, oil and gas, environmental services, power transmission, renewable energy, energy business consulting, construction management and commissioning, operations, and maintenance support services. The company was founded by Frederick Sargent and Ayres Lundy in 1891 and is headquartered in Chicago, IL.

Stanton Wind Energy LLC operates a wind-power generating facility. It generates 120 MW of wind energy through 80 GE 1.5-megawatt SLE wind turbines. The company is headquartered in Chicago, IL.

Sky Gen Energy LLC engages in electricity generation. The private company is based in Northbrook, IL. The company was founded by Michael P. Polsky.