Los Angeles Department of Water and Power (LADWP) keeps the movie cameras running and the swimming pools full. The largest municipally owned utility in the US, LADWP provides electricity to more than 1.4 million residential and business customers and water to 640,000 customers. The company has power plant interests that give it more than 7,220 MW of generating capacity; it also buys and sells wholesale power. Most of the city's water supply is transported through two aqueduct systems from the Sierra Nevada Mountains; other water sources include wells and local groundwater basins. Because LADWP is city-owned, its retail monopoly status was unaffected by utility deregulation in California.

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.

Summit Energy Services is a major provider of energy management and procurement services for industrial and commercial companies, and operates in 56 countries. A consolidator in a fragmented industry, the company's offerings include market intelligence reporting, need and competitive supply analysis, contract negotiation, utility bill auditing, risk advisory planning, and energy efficiency projects. It serves the automotive, healthcare, transportation, and food industries, as well as chemical, metal, paper, and plastic manufacturing companies, and municipal and state governments and hospitality and real estate management enterprises. Summit Energy Services has more than 650 clients.

Intermountain Power Agency facilities, which began operating in 1987, supply power to the 23 founding municipalities. IPA also sells power through contracts with 13 additional utilities in Utah and California. The IPA is operated by The Los Angeles Department of Water and Power.If you're into mountains (and who isn't?) Intermountain Power Agency (IPA) may well be the key to your access to power. IPA was formed in 1977 by 23 Utah municipal electric utilities to develop and operate the Intermountain Power Project (IPP), a two-unit coal-fired generation facility with a capacity of 1,700 MW, and two high-voltage transmission systems.

South Jersey Industries, Inc., through its subsidiaries, engages in the purchase, transmission, and sale of natural gas for residential, commercial, and industrial customers. It also sells natural gas and pipeline transportation capacity on a wholesale basis to various customers on the interstate pipeline system, as well as transports natural gas purchased directly from producers or suppliers to their customers. It also markets natural gas storage, commodity, and transportation assets for energy marketers, electric and gas utilities, and natural gas producers in the mid-Atlantic and southern regions of the United States. In addition, the company develops and operates energy-related projects, which provide cooling, heating, and emergency power. Further, it provides services for the acquisition and transportation of natural gas and electricity for retail end users; markets total energy management services; installs and services residential and light commercial HVAC systems; provides plumbing services; and services appliances, as well as offers meter reading services. As of December 31, 2009, South Jersey Industries, Inc. served 343,566 residential, commercial, and industrial customers primarily in southern New Jersey. South Jersey Industries, Inc. was founded in 1910 and is headquartered in Folsom, New Jersey.

Rutherford Electric Membership Corporation provides power to more than 67,000 members located in 10 counties (Burke, Catawba, Caldwell, Cleveland, Gaston, Lincoln, McDowell, Mitchell, Polk and Rutherford) in the Southwestern Piedmont region of North Carolina. The cooperative (which had a membership of only 394 in 1938, but grew rapidly after WWII) owns and maintains about 7,000 miles of power line. Rutherford Electric has total assets of more than $300 million. The cooperative is a member of the Touchstone Energy Cooperatives network.

Puerto Rico Electric Power Authority (PREPA) is prepared to serve an entire island nation. Founded in 1941, the government-owned utility is the sole electricity distributor for Puerto Rico, where it serves approximately 1.4 million residential and business customers. PREPA owns five primarily fossil-fueled power plants that give it nearly 5,800 MW of generating capacity, and it has more than 30,000 miles of transmission and distribution lines. In order to keep up with increasing demand, the Puerto Rican government has allowed independent power producers to build cogeneration plants on the island to sell power to PREPA.

Alpheus Environmental finds answers in a range of environmental-related services: water and wastewater treatment, operations and maintenance, infrastructure management and contracting, waste management and recycling, and technical support. A unit of water utility group AWG (formerly Anglian Water), it offers design, build, and project management services for blue-chip companies in the process industry. Services include installing water, gas, electricity, roads, and sewers on development sites. Customers include TOTAL, Whitbread, and the Derby City Council. Alpheus Environmental manages water management, waste minimization, and recycling sites across the UK.

Massive power resource, Massachusetts Municipal Wholesale Electric Company (MMWEC) provides power supply services to its members -- 23 of the state's 40 municipal utilities (28 utilities are also participants in MMWEC power supply projects). The power supplier has about 715 MW of generating capacity from interests in fossil-fueled and nuclear power plants in the northeastern US, and it negotiates bulk electricity purchases from other generators for its members. MMWEC is the operator and principal owner of the Stony Brook Energy Center, a 520 MW, combined-cycle intermediate and peaking generating station in Ludlow, Massachusetts.

Companhia de Saneamento de Minas Gerais provides water supply (for about 12 million people) and sewage treatment services in more than 600 municipalities in the country's state of Minas Gerais. Founded in 1963, COPASA serves customers such as private companies, government agencies, and individuals. The government of Minas Gerais established the company under the name Companhia Mineira de Água e Esgotos in order to enforce the sanitation policy for the state. COPASA receives payment for its services in the form a tariff, which takes into account customers' consumption ranges, as well as inflation.

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