Calpine Corporation is helping meet the needs of an economy that demands more and cleaner sources of electricity. Founded in 1984, Calpine is a major U.S. power company, currently capable of delivering nearly 24,000 megawatts of clean, cost-effective, reliable, and fuel-efficient... more

Duke Energy Corporation (Duke Energy) is an energy company located in the Americas that provides its services through four business units. The Company’s business units are U.S. Franchised Electric and Gas, Commercial Power, International Energy and Duke Energy’s 50% interest in the... more

Petrobras (www.Petrobras.com) is among the world's largest integrated oil and gas companies, engaging in a broad range of activities, including exploration, development, and production of crude oil and natural gas; refining, transportation, and wholesale marketing of crude oil, natural... more

ALSTOM is the global specialist in energy and transport infrastructure. The Company serves the energy market through its activities in the fields of power generation, power transmission and distribution, power conversion and the transport market through its activities in rail and marine.... more

E.ON AG (E.ON) is an industrial group in Germany, primarily engaged in the energy business. The Company's operations are organized into separate market units: Central Europe, providing energy in the Netherlands, Hungary, Slovakia, the Czech Republic and Switzerland; Pan-European Gas,... more

Black Hills Corporation is a diversified energy company. The Company operates principally in the United States with two business groups: Utilities Group and Non-regulated energy Group. The Company’s Utilities group conducts business in two segments, such as electric utility and... more

About E.ON UK E.ON UK, the company that runs Powergen, is a leading energy company in the UK. Owned by E.ON AG, the world's largest investor-owned utility, E.ON UK is a leading energy supplier in the UK, and produces electricity from a portfolio of world-class power stations and a leading... more

Innogy plc, headquartered in Swindon, UK, is the principal business holding company of the Innogy Group, which is the UK part of the de-merged former National Power plc. Innogy plc is 100% owned by Innogy Holdings plc, which is the new overall Group holding company created at the time of... more

Northern Power is committed to the development of practical, real-world energy solutions to meet its customers' needs. The R&D team is charged with developing innovative products and capabilities to support Northern Power's mission and its growth. The R&D team works to fulfill Northern... more

Distributed Energy Systems provides our global customers with superior energy solutions in a dynamic and changing landscape. From our history of success with NorthWind® wind power products to the development of advanced power electronics and innovative energy systems, Distributed Energy... more

NGS is a wholly-owned subsidiary of Northeast Utilities (NYSE: NU). NU operates New England,s largest energy delivery system and is one of the Northeast,s leading competitive energy suppliers. We serve a wide variety of markets including fossil-fueled and hydro-electric plants, nuclear... more

Solar Systems is the world leader in high concentration solar photovoltaic applications.

Appropriate Energy, Inc. (AEI) is an integrated renewable energy resource company dedicated to engineering the most economical and sustainable power solutions for remote areas located anywhere in the world. AEI has designed and installed systems for villages, schools, clinics,... more