Enerchina Holdings focuses on offering a variety of energy and public utility services in about 40 cities in China. The company generates electrical power, as well as provides more than 400,000 tons of natural gas every year through Panva Gas Holdings. Panva also offers pipeline network construction, transportation, storage, and wholesale of natural gas. Enerchina Holdings serves more than 3 million customers. The company is researching and developing other clean energy sources, including different uses of coal. Chairman Ou Yaping owns about 52% of Enerchina Holdings.

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.

Touchstone Energy keeps in touch with the energy of its members. The organization is a national alliance of local, consumer-owned electric utility cooperatives providing service to more than 30 million customers through more than 660 affiliated cooperatives in 46 states. Touchstone Energy champions the cause of electric cooperatives nationwide through organizing branding events, media projects, and other public relations activities. The alliance runs television ads on various channels, including CNN, ESPN, TNT, The Weather Channel, TBS, and The Learning Channel. It also places print ads in national magazines and newspapers, including Reader's Digest and other major publications.

Through its subsidiaries, the province-owned company transmits and distributes electricity to 1.3 million residential and commercial customers (including municipal utilities) in Ontario. Its primary utility subsidiaries are Hydro One Networks (transmission and distribution) and Hydro One Brampton Networks (electricity distributor to urban areas). Hydro One Telecom markets the group's fiber-optic capacity (broadband) to businesses, and Hydro One Remote Communities supplies energy to more than 20 remote areas in Ontario.

TurboSonic Technologies has a snooty attitude towards soot. The company provides industrial customers with air-pollution control equipment and products designed to enhance the performance of industrial process equipment. Selling its products worldwide, the company serves clients in the food and beverage, forest products, mining, oil and gas, waste management, and other industries. The downturn in the global economy forced the company to take cost-cutting measures in 2010, including salary reductions and unpaid leaves of absence. Director Donald Spink, Sr., the father of CEO Edward Spink, owns 8% of TurboSonic Technologies.

American Electric Power Company, Inc. engages in the generation, transmission, and distribution of electric power. It generates electricity using coal and lignite, natural gas, nuclear, and hydroelectric energy. The company distributes electric power at wholesale to other electric utility companies, rural electric co-operatives, municipalities, and other market participants, as well as to retail customers in its service areas. It also operates nonregulated wind farms and barging operations, as well as provides various energy-related services. The company operates in the states of Arkansas, Indiana, Kentucky, Louisiana, Michigan, Ohio, Oklahoma, Tennessee, Texas, Virginia, and West Virginia. As of December 31, 2008, it owned or leased approximately 37,000 megawatts of power generation capacity. The company was founded in 1906 and is based in Columbus, Ohio.

Pinnacle West Capital is at the peak of the energy pyramid in Arizona. It is the holding company for the state's largest electric utility, Arizona Public Service (APS), which transmits and distributes electricity to 1.1 million residential, commercial, and industrial customers throughout most of the state. The utility also has more than 6,280 MW of generating capacity. Through APS and other subsidiaries, Pinnacle West markets wholesale and retail power in Arizona and the western US. The company also develops and manages real estate and invests in energy ventures.

Pennsylvania-American Water Company distributes water and provides wastewater services to a population of more than 2 million people in more than 370 communities across Pennsylvania. Pennsylvania-American Water also operates some 35 water treatment plants, seven wastewater facilities, and 9,900 miles of pipeline. The company's service territory covers some 35 Pennsylvania counties. Pennsylvania-American Water, the largest regulated water and wastewater service provider in Pennsylvania, is a subsidiary of the New Jersey-based American Water.

SCANA is cooking with (natural) gas and electricity all over South and North Carolina, and Georgia. The holding company serves 659,000 electricity customers and more than 1 million gas customers in the neighboring states through utilities South Carolina Electric & Gas (SCE&G), Public Service Company of North Carolina, and SCANA Energy (in Georgia). SCANA has an electric generating capacity of about 4,900 MW, derived from fossil-fueled power plants and hydroelectric and nuclear generation facilities. Unregulated operations include retail and wholesale energy marketing and trading, gas transportation, power plant management, fiber-optic telecommunications services, and appliance and HVAC maintenance.

Trojan Technologies wants to zap you. The company manufactures ultraviolet (UV) lighting systems for disinfecting wastewater and treating contaminated soil and groundwater. Trojan's wastewater treatment systems are used in about 4,000 municipalities in 50-plus countries. The company's UV light systems work by altering the DNA in microorganisms and are an alternative to traditional chlorine-based disinfection systems. Trojan also makes UV products that cleanse water used in industrial processes such as food production and electronics manufacturing. Other products include residential UV systems for drinking water. Danaher controls Trojan.

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