United Utilities Group PLC, through its subsidiaries, engages in the ownership, operation, and maintenance of water and wastewater networks in the United Kingdom and internationally. It supplies water covering a population of approximately 7 million people, and 2.9 million households and business premises; and involves in the collection and treatment of wastewater through a network of 43,419 kilometers of sewers. The company also operates electricity distribution network, and high voltage networks for businesses; and gas distribution network, as well as pipes and the equipment used to pump, condition, and store gas. In addition, United Utilities Group PLC provides consulting services and project management services; property management services; multi-utility metering operations and metering installation services; technical and management services; and asset management services. The company was formerly known as United Utilities Newco Limited and changed its name to United Utilities Group PLC in April 2008. United Utilities Group PLC was founded in 1989 and is headquartered in Warrington, the United Kingdom.

Aqua-Pure Ventures has developed a patented wastewater distillation process used in wastewater recycling. Primarily used for industrial applications, Aqua-Pure's Clear Solutions system provides evaporation technology that can easily mix with other wastewater-treatment methods. Among its many uses, Clear Solutions may be applied for treating medical wastewater and for seawater desalination. In North America Aqua-Pure distributes the Salsnes Filter, used by municipalities and industrial companies for treating wastewater. This technology, developed by the Salsnes company in Norway, can be installed in new plants or mixed with technology already in use.

Ohio Pure Water distributes a wide range of water purification and treatment equipment to customers throughout the US. Its products include chlorination systems, water softeners, water filters, reverse-osmosis equipment, UV sterilizers, and drinking water systems. Other equipment includes flexible hose units, float switches and valves, PVC air injectors, and mineral tanks and parts. The company conducts most of its sales through its Web site. Ohio Pure Water was founded in 1996 by president C. K. Moore, a former maintenance superintendent for the State of Ohio.

Suffolk County Water Authority provides water services to 375,600 homes and businesses (more than 1.2 million people) in New York's Suffolk County, on the eastern end of Long Island. The water authority's system (the largest water system in the nation operating entirely with groundwater) includes more than 5,500 miles of mains. The authority also runs the largest groundwater testing facility in the US. Suffolk County Water Authority is a public benefit corporation of the state of New York.

E.ON AG, a power and gas company, engages in the power generation, energy trading, and gas supply businesses. The company generates electricity from coal, natural gas and oil, nuclear, water, wind, solar, and bio energy; and involves in the exploration and production of gas in the North Sea. It also engages in the storage and transportation of gas, including liquefying natural gas; carbon sourcing; and distribution of power and gas. In addition, the company buys and sells primarily electricity, natural gas, oil, coal, biomass, freight, and carbon allowances; and generates and distributes heat. It serves residential, business, industrial, regional and municipal utilities, and local public authorities. As of December 31, 2009, the company had approximately 73 giga watts of installed capacity for power generation; 33,000 kilometers (km) of power transmission networks; a 1 million km power distribution system, as well as approximately 11,600 km of gas transport pipelines, and a 100,000 km gas distribution system. It has operations primarily in Europe, Russia, and North America. The company was founded in 1929 and is headquartered in Dusseldorf, Germany.

Red El�ctrica de Espa�a (REE) owns and operates most of the country's power transmission grid. REE's system includes more than 34,300 kilometers of high-voltage transmission lines and more than 3,100 substation circuit bays. T-Online acquired REE's 10,000-kilometer fiber-optic network, which runs alongside the utility's power lines and is used to offer broadband telecom services, in 2005. However, REE's sister company Red El�ctrica Internacional, is contrtacted to continue maintenance of this network until 2016.

STP Nuclear Operating Company (STPNOC) is pulling out all the stops to make sure that the lights burn brightly in the Lone Star State. The company manages the South Texas Project Electric Generating Station on a 12,220-acre site near Bay City, Texas. The nuclear power plant's two reactors, which went into operation in 1988 and in 1989, produce about 2,700 MW of electricity and serve 2 million homes in Texas. The company is jointly owned by NRG Energy (44%), CPS Energy (40%), and Austin Energy (16%). STPNOC accounts for about 7.5% of the power consumed in Texas.

GenOn Energy, Inc. operates as a generator of wholesale electricity in the United States. Its portfolio of power generation facilities include baseload, intermediate, and peaking units using coal, natural gas, and oil to generate electricity. The company owns, contracts, or operates approximately 49 power generation stations with generation capacity of 24,599 megawatts. The company was formerly known as Mirant Corporation and changed its name to GenOn Energy, Inc. on December 4, 2010. The company is based in Houston, Texas.

DTE Energy Company, together with its subsidiaries, operates as an electric and natural gas utility company in Michigan. It also involves in non-utility operations. The company’s Energy Utility segment engages in the generation, purchase, distribution, and sale of electricity in southeastern Michigan. It generates electricity from various fuels, including coal, as well as from nuclear and hydro facilitates. As of December 31, 2009, this segment owned and operated approximately 677 distribution substations and approximately 423,600 line transformers; and supplied electricity to 2.1 million residential, commercial, and industrial customers in southeastern Michigan. The company’s Gas Utility segment engages in the purchase, storage, transmission, distribution, and sale of natural gas in Michigan. As of December 31, 2009, this segment’s distribution system included approximately 19,000 miles of distribution mains, 1,177,000 service lines, and 1,312,000 active meters. It also owned approximately 2,100 miles of transmission lines that deliver natural gas; and supplied natural gas to approximately 1.2 million residential, commercial, and industrial customers throughout Michigan, as well as to approximately 17,000 customers in Adrian, Michigan. The company’s non-utility operations include natural gas pipelines and storage; unconventional gas exploration, development, and production; power and industrial projects, and coal transportation and marketing; and energy marketing and trading operations. Its customers include electric utilities, merchant power producers, integrated steel mills, and industrial companies. DTE Energy Company was founded in 1995 and is based in Detroit, Michigan.

Thermal Energy International ledgers are in the black. The company focuses on providing air pollution control, renewable energy, and waste heat recovery and other energy conservation products, primarily under the Flu-Ace and Dry-Rex names. It also offers complementary engineering services. Thermal Energy International is also developing a product that targets ozone generation, THERMALOZOMAX. Customers include auto manufacturers; coal-fired utilities; food makers; hospitals; primary metal, pulp and paper processors; and sewage-treatment facilities.

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