NRG Energy, Inc. operates as a wholesale power generation company primarily in the United States. It engages in the ownership, development, construction, and operation of power generation facilities; and trading of energy, capacity, and related products, as well as engages in transacting and trading of fuel and transportation services. The company also has locations in Australia and Germany. As of December 31, 2006, the company's power generation assets consisted of approximately 10,470 megawatt ...

Endesa, S.A., an electricity company, together with its subsidiaries, engages in the generation and distribution of electricity primarily in Spain, Portugal, southern European region, Latin America, and north Africa. It produces electricity from coal, nuclear, hydroelectric, fuel oil, and gas. The company also involves in the renewable energies and cogeneration, and distribution and supply of natural gas. As of December 31, 2006, Endesa served electricity to approximately 22.7 million residentia ...