Northeast Utilities (NU) uses a little Yankee ingenuity (and a number of power generation plants) to keep its customers powered up. The largest utility in New England, NU supplies power to more than 2 million customers in Connecticut, New Hampshire, and Massachusetts through subsidiaries Connecticut Light and Power, Public Service Company of New Hampshire, and Western Massachusetts Electric. The company's power grid encompasses more than 3,100 circuit miles of overhead transmission lines and more than 32,800 pole miles of distribution lines. NU's Yankee Gas utility provides natural gas to 205,000 customers in Connecticut. In 2010 the company offered to buy regional rival NSTAR in for $4.2 billion.

Porvair wants to reign in pores. The company makes specialist porous filtration products out of ceramics, plastic, metal, and carbon for a variety of industries, including aerospace, aluminum, high-purity liquids, life sciences, and nuclear maintenance. The company's specialist laboratory filter systems are used by pharmaceutical and drug companies for diagnostic and testing kits, medical devices, and pharmaceutical production. Porvair also makes high performance bi-polar planes for fuel-cell manufacturers. The company operates in both the UK and US.

Zodiac Marine and Pool (formerly Polaris Pool Systems) wants your backyard retreat to be sparkly clean, and your maritime sector to have access to the best in liferafts and inflatable boats. The swimming pool and spa maintenance division manufactures a wide range of automatic pool cleaners, automated chlorinators, and related accessories. The marine division makes inlflatable boats for recreational use and for the military, as well as a toilets, grease separators, marine incinerators, and other environmental equipment for the marine sector. Zodiac Marine and Pool, a Carlyle Group company, has operations throughout the US, as well as in Australia and in Europe.

Clay Electric Cooperative covers a lot of ground in Florida. The utility distributes electricity to 14 counties in the northeastern part of the state, including the suburbs of Jacksonville and Gainesville. It delivers power to its 165,000 residential, commercial, and industrial members over more than 12,800 miles of transmission lines. The consumer-owned utility offers electronic funds transfer, average billing, and a seniors payment plan to residential customers, and backup diesel power generation and special rate plans to businesses. The consumer-owned utility has a stake in Seminole Electric Cooperative, which provides generation services to Clay Electric and nine other cooperatives.

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.

Fortis wields power. The group has holdings in 10 companies, primarily regulated electricity and gas distributors, serving about 2 million customers. Its Terasen unit is the major natural gas distribution utility in British Columbia and serves approximately 940,000 customers. Newfoundland Power utility distributes electricity to 240,000 people, while Maritime Electric serves customers on Prince Edward Island. FortisOntario serves parts of Ontario, and FortisAlberta distributes electricity to 480,000 customers in Alberta. FortisBC generates, transmits, and distributes electricity in southern British Columbia. Fortis Generation operates hydroelectric plants, and Fortis Properties runs hotels in Canada.

Corning Natural Gas Corporation distributes natural gas through its own distribution and transmission network to residential, commercial, industrial, and municipal customers in the Corning, New York area, as well as to two other gas utilities that service the Elmira and Bath, New York areas. As of September 30, 2009, it served approximately 14,500 customers through 400 miles of pipeline in the Corning and Hammondsport, New York areas. Corning Natural Gas Corporation company was founded in 1904 and is headquartered in Corning, New York.

Pepco Energy Services continues to sail right along. The company provides electricity and natural gas to residential, commercial, industrial, and governmental customers in deregulated areas (primarily the US eastern seaboard, Chicago, and Texas). The nonregulated energy supply company, a subsidiary of Pepco Holdings, offers services in energy management, energy-efficiency consulting, "green power" facilities development and construction, and equipment maintenance. It operates two power plants with a aggregate capacity of 790 MW. Pepco Energy Services also provides its customers the choice of sourcing power from green sources (from solar, wind, and biomass plants).

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.

Although South Central Power Company may sound like a power plant in Watts, Los Angeles, it is in fact a member-owned cooperative that provides electricity to consumers and businesses in southern Ohio. An affiliate of the nationwide Touchstone Energy Cooperative network, the electric cooperative provides power to more than 110,000 customers over more than 11,000 miles of power lines. In addition to distributing electricity, South Central Power also provides outdoor lighting, surge suppression products, security systems, water heater switches, and other energy-related services.

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