Transportadora de Gas Del Sur S.A. engages in the transportation of natural gas, as well as production and commercialization of natural gas liquids primarily in Argentina. It operates approximately 8627 km long pipeline system. Transportadora company transports its natural gas to distribution companies, industries, traders, producers, and power plant operators. The company’s production and commercialization activities are conducted at the Cerri Complex located near Bahia Blanca. Its natural gas liquid products comprise ethane, propane, butane, and natural gasoline. It also provides midstream services, which consist of gas treatment, gas compression, and wellhead gas gathering services; removal services for impurities from the natural gas stream; and pipeline construction, operation, and maintenance services. In addition, the company offers telecommunication services for telephone operators and other corporate users. Its telecommunication network includes a microwave's digital system with synchronous digital hierarchy technology. Transportadora company was founded in 1992 and is based in Buenos Aires, Argentina. Transportadora de Gas Del Sur S.A. is a subsidiary of Compania de Inversiones de Energia S.A.

China Three Gorges Project Corporation (CTGPC) is building the world's largest hydropower project -- the Three Gorges on the Yangtze River. Located near the Xilingxia gorge, a 185-meter-high project dam controls a drainage area of 1 million square km and an average annual runoff of 451 billion cubic meters. Construction on the massive project broke ground in 1994 and is expected to formally wrap up in late 2008. Subsidiary China Yangtze Power was set up in 2002 to manage two power plants, Gezhouba and Three Gorges. In 2009, in a major cash infusion, this unit paid its parent for the remaining 18 generators at the Three Gorges project.

National Fuel Gas Company, through its subsidiaries, operates as a diversified energy company primarily in the United States. The company operates through four segments: Utility, Pipeline and Storage, Exploration and Production, and Energy Marketing. The Utility segment sells natural gas or provides natural gas transportation services to approximately 727,000 customers in Buffalo, Niagara Falls, and Jamestown, New York; and Erie and Sharon, Pennsylvania. The Pipeline and Storage segment provides interstate natural gas transportation and storage services for affiliated and nonaffiliated companies through an integrated gas pipeline system; and 27 underground natural gas storage fields, as well as 4 other underground natural gas storage fields owned and operated jointly with other interstate gas pipeline companies. This segment also transports natural gas for industrial customers and power producers in New York State. It owns the Empire Pipeline, a 157-mile pipeline; and the Empire Connector, which is a 76-mile pipeline extension. The Exploration and Production segment engages in the exploration for, and the development and purchase of natural gas and oil reserves in California, in the Appalachian region of the United States, and in the Gulf Coast region of Texas and Louisiana. As of September 30, 2009, this segment had proved developed and undeveloped reserves of 46,587 thousand barrels of oil and 248,954 million cubic feet equivalent of natural gas. The Energy Marketing segment markets natural gas to industrial, wholesale, commercial, public authority, and residential customers primarily in western and central New York and northwestern Pennsylvania. National Fuel Gas company also develops and operates mid-range independent power production and landfill gas electric generation facilities. National Fuel Gas Company was founded in 1902 and is based in Williamsville, New York.

RPG Enterprises has more than 20 companies that span energy, retail, manufacturing, technology, and entertainment. The company's primary operations include electricity generation and distribution (through CESC Limited and Noida Power) and utility and telecommunications infrastructure development, as well as carbon black production and tire manufacturing. Other operations include supermarkets (Spencer's Hypermarket), retail music and health and beauty stores, software, telecommunications, pharmaceuticals, and music recording businesses. RPG Enterprises is controlled by the Goenka family; the company was formed in 1979 to hold the family's diversified business interests.

Scottish Water provides water and wastewater services to 5 million customers in 2.4 million homes. The company, which is the one of five largest water utilities in the UK, operates about 29,340 miles of water mains, 31,150 miles of sewers, 300 water treatment works, and more than 1,900 wastewater treatment works. The government-owned company, which is overseen by the Scottish Parliament, is focusing on upgrading its provision of clean drinking water, making its services more efficient and helping to improve the environment by protecting the watersheds that supply the company's water.

Sociedad General de Aguas de Barcelona, S.A. (Agbar) distributes water to more than 12 million people (almost 19 million during tourist season) and provides wastewater services for more than 6.2 million people. The company also has stakes in water businesses in Chile and the UK. Agbar has sold its solid-waste collection and treatment operations in order to focus on its core water business. Activities in Spain account for about 83% of the company's sales. Agbar is 66%-owned by Holding de Infraestructuras y Servicios Urbanos S.A.

Kenergy kens energy, as the Scots might say. Electric distribution cooperative Kenergy serves about 55,000 customers in 14 counties (Breckinridge, Caldwell, Crittenden, Daviess, Hancock, Henderson, Hopkins, Livingston, Lyon, McLean, Muhlenberg, Ohio, Union and Webster) in Western Kentucky. Kenergy serves its customer base of households, commercial enterprises, and industries via more than 6,700 miles of power lines. The customer-owned company is part of Touchstone Energy Cooperatives, a national alliance of more than 600 local, consumer-owned electric utility cooperatives.

Techem knows when the heat is on. The company is a leading European utility services firm (with operations in 20 countries) that monitors energy and water consumption in 8 million end-user households, primarily apartments and multi-family dwellings in Germany. It also offers its 690,000 clients additional services such as heat and water meter sales and rentals, heating system maintenance, and bill collection. Techem Energy Contracting builds and operates facilities for energy supply, and the company's IT division offers property management software.

Black Hills Power has been delivering energy for over 125 years. It was formed through the consolidation of several smaller electric suppliers in the Black Hills of South Dakota, Montana and Wyoming. Black Hills Power is an investor-owned utility and is part of the Black Hills Corporation family. The utility serves 63,500 customers in 20 communities located in Western South Dakota, Northern Wyoming, and Southeastern Montana.Our customers use 1,501,805,000 kilowatt hours (kWh) of electricity at an average price of $0.0714 per kWh. Cost containment efforts and customer load growth have provided our customers with stable residential electricity costs and our commercial electricity costs that are declining in real terms, and have remained stable for the last 11 years.

ThermoEnergy Corporation, a clean technologies company, develops municipal and industrial wastewater treatment systems, and carbon reducing clean energy technologies worldwide. The company's technologies include Zero Emission Boiler system, which converts fossil fuels and biomass into electricity without producing air emissions, as well as removes and captures carbon dioxide in liquid form for sequestration or beneficial reuse; and Controlled Atmosphere Separation Technology (CAST), R-CAST, and proprietary water technologies. Its technologies also comprise Ammonia Recovery Process technology that captures ammonia from dilute waste streams and converts it into ammonium sulfate; ThermoFuel Process, a renewable energy process, which converts digested or waste activated sewage sludge into an energy fuel that could be converted into electricity for use on-site or sold as a feedstock to third party industrial clients; and Enhanced Biogas Production process, which retrofits existing wastewater treatment plants to recover excess ammonia from the digesters. The company's wastewater treatment systems are used in the aerospace, food and beverage processing, metal finishing, pulp and paper, petrochemical, refining, microchip and circuit board manufacturing, heavy manufacturing, and municipal wastewater applications. Thermoenergy Corporation has a strategic alliance with Contego Systems LLC to provide solutions for airplane deicing. The company was founded in 1988 and is headquartered in Little Rock, Arkansas.

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