ReliOn relies on its ability to produce hydrogen fuel cells in order to make money. The company claims to be the world's leading developer and marketer of modular, cartridge-based, proton exchange membrane fuel cell technology. ReliOn markets a range of stationary fuel cells for emergency and back up power systems, uninterruptible power supplies, digital power needs and a range of off grid power requirements. The company has sold and installed more than 2 MW of products with private and public entities in the energy, telecommunications, and transportation segments. Investors include Avista, Enterprise Partners Venture Capital, and Wall Street Technology Partners.

Wahlco likes to keep it clean. It designs and manufactures air pollution control equipment, specializing in ammonia handling, flue gas conditioning, nitrogen oxide control equipment which it installs at power plants and other industrial facilities, including cement plants, oil and gas refineries, pulp and paper mills, and steel mills. Wahlco also makes products such as low-watt density heaters and specialty thermocouples for industrial applications. The company's systems and equipment can be found in more than 500 locations in more than 17 countries. Wahlco was founded by a small group of experts in 1972.

Deriving its name from an old Eskimo tribal word, Chugach Electric Association generates, transmits, distributes, and sells electricity in Alaska's railbelt region. This area extends from the coastal Chugach Mountains into central Alaska and includes the state's two largest cities (Anchorage and Fairbanks). The member-owned cooperative utility has 530 MW of generating capacity from its natural gas-fired and hydroelectric power plants. Serving 80,300 metered retail locations, Chugach Electric, the largest electric utility in Alaska, also sells wholesale power to other municipal and cooperative utilities in the region.

Global Water Resources (GWRI) took the phrase "Think globally, act locally" to heart. The company provides water, wastewater, and recycled water utility services to 14 utilities and more than 60,000 people in its service area around Phoenix. Its recycled water is treated and purified wastewater used for non-potable and outdoor purposes, sent through a separate system of pipes than drinking water. GWRI says its reclaimed water project saves up to 40% of drought-prone Arizona's scarce groundwater. The utility also extends water and wastewater infrastructure financing to regional developers and builders. The company was formed in 2003. Once privately held, GWRI went public in an IPO in late 2010.

Wolf Creek Nuclear Operating Corporation (WCNOC) helps to sate the energy hunger of the US public. The nuclear plant operator is in charge of the Wolf Creek Generating Station in Kansas, which houses a four-loop pressurized water reactor that generates about 1,200 MW of electricity (enough to power some 800,000 homes). WCNOC is joint venture between Westar Energy, which owns a 47% stake, Great Plains Energy (which through subsidiary Kansas City Power & Light owns 47%), and Kansas Electric Power Cooperative, 6%. Its job description is to operate, maintain, repair, and eventually decommission the Wolf Creek Generating Station.

Macao Water Supply Co. Ltd,the utility supplies its customers with water from the West River's Modaomen Channel in Zhuhai City. Because of the high salinity content in the water (especially in the winter and spring months), Macao Water Supply uses a system of holding tanks and purification stations. Founded in 1932, the company is a subsidiary of Sino-French Holdings (Hong Kong) Limited (a joint venture of France-based water utility Ondeo Services and Hong Kong-based NWS Holdings Limited). As part of an ongoing maintenance strategy the company has replaced or repaired all of the distribution network that was in place in 1982.

United Water is a part of global water player SUEZ Environnement, and is one of the largest water companies in the US. The company distributes water and provides wastewater services to about 7 million people, including residential, commercial, and industrial customers. United Water provides services through a number of utility subsidiaries and through its contracts with several municipalities. The company operates almost 250 municipal water systems and owns utilities in 20 states across the country.

Minnesota Power can keep both Vikings and Packers warm. The utility, an operating unit of ALLETE, provides electricity to about 144,000 customers in northeastern Minnesota and northwestern Wisconsin, as well as wholesale electricity to 16 municipal systems. Large industrial customers include Boise White Paper (a subsidiary of Boise Cascade) and Hibbing Taconite (a joint venture owned by ArcelorMittal, Cliffs, and US Steel). Its largest purchasing contract is with the Square Butte Electric Co-op in North Dakota -- Minnesota Power gets half of Square Butte's output -- but the company is attempting to transition from Square Butte's traditionally coal-generated energy to wind power.

San Jose Water, the primary subsidiary of SJW, provides water utility services to approximately 225,000 customers (about 1 million people) in California's Santa Clara County. To obtain its water supply, San Jose Water taps wells and surface sources and buys water from the Santa Clara Valley Water District. It also collects local mountain surface water from the watershed in the Santa Cruz Mountains, which is then treated at San Jose Water's two treatment plants. This local surface water accounts for about 7% of the water utility's total supply. Purchased water accounts for more than 40%.

In 1976 the cooperative changed its name from Colquitt County Rural Electric Company to Colquitt EMC. The utility is the largest EMC in south Georgia with some of the lowest electric rates in the state.There's no quit in the electric service to Colquitt and surrounding counties in Georgia, thanks to Colquitt Electric Membership Corporation (Colquitt EMC). The consumer-owned non-profit utility distributes electricity to more than 41,000 members in Berrien, Brooks, Colquitt, Cook, Lowndes, Tift, and Worth counties. Colquitt EMC distributes electricity via more than 8,020 miles of power line.

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