REC Solar helps you say "So long!" to fossil fuel dependence. The company designs and installs solar electric systems for residential and small commercial customers in six states -- Arizona, California, Colorado, Hawaii, New Jersey, and Oregon. REC Solar has installed more than 3,200 power systems since being founded in 1997. Its systems range from simple rooftop panel displays for residential customers to industrial solar electric systems for Costco. REC Solar uses solar panels manufactured by Kyocera, Mitsubishi, Sanyo, and Sharp, and components by Satcon, SMA Solar Technology, and Xantrex. Investment group Mainstream Energy owns both REC Solar and AEE Solar.

China Power International Development Limited (China Power) is one of five national power generating groups that construct and operate large power plants in China. The company is a subsidiary of CPI Holding, and is ultimately controlled by China Power Investment Group (CPI Group). China Power owns five high-capacity coal-fired power plants, including the Pingwei Power Plant and the Yaomeng Power Plant. It also has stakes in power plants in Changshu and Shanghai. The company has an installed capacity of more than 9,000 MW. China Power also manages three other power plants, which have a total installed capacity of about 1,300 MW.

Otter Tail covers a swath of businesses, from electric services and food-ingredient processing to manufacturing equipment, plastics, and health services. Its electric utility and energy activities are subsidiaries of Otter Tail, and its subsidiary Varistar holds Otter Tail's other interests. The electric utility has been the company's core effort since Otter Tail's start in 1907; it keeps the lights on for 129,000-plus residential, commercial, and industrial customers in Minnesota and the Dakotas. Otter Tail also makes PVC pipes, wind towers, metal parts, and processes potato flakes, as well as offers diagnostic medical equipment, and construction and trucking services.

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.

Duke Energy Indiana (formerly PSI Energy) brings a spark to the Hoosier state. One of Indiana's largest utilities, Duke Energy subsidiary Duke Energy Indiana transmits and distributes electricity to 69 of the state's 92 counties (approximately 780,000 customers). The utility also owns power plants (more than 6,730 MW of primarily fossil-fueled capacity), which are operated by its parent's merchant energy division. Duke Energy Indiana's service area covers about 22,000 sq. miles with an estimated population of 2.4 million. The company operates about 31,000 miles of distribution lines and a 5,400-mile transmission system. In 2010 Duke Energy Indiana appointed company veteran Doug Esamann as president.

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.

NorthWestern, once a holding company for several energy-related businesses, is now blowing in one direction only -- providing power and gas through regulated utilites. Through its NorthWestern Energy subsidiary, the company provides electricity and natural gas to about 661,000 customers in Montana, Nebraska, and South Dakota. In Montana it delivers electricity to approximately 335,000 customers in 187 communities and surrounding rural areas, 15 rural electric cooperatives, and in Wyoming to the Yellowstone National Park. NorthWestern delivers gas to 180,100 Montana customers. In Nebraska and South Dakota it sells natural gas to 85,5100 customers.

Lincoln Electric System (LES) takes care of all of the power needs for residents and businesses in Lincoln, Nebraska. The company generates, purchases, transmits, and distributes electricity for approximately 128,130 residential, commercial, and industrial customers in Lincoln and surrounding communities. LES has interests in fossil-fueled power plants and wind energy facilities; the utility also purchases power through contracts with other generation utilities, such as the Nebraska Public Power District and the Western Area Power Administration, and it markets power to wholesale customers.

Caithness region might well serve as an inspiration for Caithness Corp., which develops wind and other renewable power plants in the US under the Caithness Energy brand. Although the firm has focused on the development, acquisition, operation, and management of geothermal, hydroelectric, wind, and solar energy power projects, it also develops environmentally friendly fossil-fueled plants. Caithness is one of the largest producers of renewable energy in the US, and has developed more than 350 MW of geothermal projects, 160 MW of solar plants, and 440 MW produced by wind turbines. On the cleaner fossil fuel plant side it has also developed more than 2,000 MW of gas-turbine powered capacity.

The Intermountain Gas Company story began in 1950 when Nat and Myrtis Campbell read a newspaper article that piqued their interest in the natural gas industry. Intermountain Gas Company was incorporated that year. After five years of hard work laying the foundation for a new public utility company, Intermountain Gas Company received certification from the Idaho Public Utilities Commission on December 10, 1955. Then, on December 31, 1955, we connected our first five customers. Since then, Intermountain Gas Company has grown along with Idaho. Today, Intermountain Gas Company is a natural gas distribution company serving approximately 305,000 residential, commercial, and industrial customers in 74 communities in southern Idaho. Intermountain is a subsidiary of MDU Resources Group, Inc., a multidemensional natural resources enterprise traded on the New York Stock Exchange as "MDU", www.mdu.com.

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