Pacific Northern Gas (PNG) provides natural gas in west-central and northeastern British Columbia. The utility serves more than 39,100 residential, commercial, and industrial customers over its transmission and distribution system. Its large industrial customers include timber company West Fraser and metals maven Rio Tinto Alcan. In 2008 these customers accounted for about 26% of PNG's annual total gas deliveries and more than 5% of its revenues. British Columbia Hydro and Power Authority (BC Hydro) is also a major customer. Most of PNG's customers buy gas directly from producers or suppliers but contract with PNG to have it pipelined to them. Pacific Northern Gas Ltd. entered the renewable power business in 2010.

Red El�ctrica de Espa�a (REE) owns and operates most of the country's power transmission grid. REE's system includes more than 34,300 kilometers of high-voltage transmission lines and more than 3,100 substation circuit bays. T-Online acquired REE's 10,000-kilometer fiber-optic network, which runs alongside the utility's power lines and is used to offer broadband telecom services, in 2005. However, REE's sister company Red El�ctrica Internacional, is contrtacted to continue maintenance of this network until 2016.

Western Area Power Administration is one of four power marketing agencies of the US Department of Energy, the enterprise operates 57 hydroelectric power plants and one fossil-fueled power generation facility with a combined generating capacity of 10,395 MW. It also manages and maintains more than 17,000 miles of transmission lines. Western Area Power Administration sells wholesale power to investor-owned, government-owned, and cooperative utilities, power marketers, federal agencies, native American tribes and other electricity users in 15 western states over a 1.3-million-sq.-mi. service area.

Constellation Energy Group, Inc., through its subsidiaries, supplies energy products and services in North America. The company operates in three segments: Merchant Energy, Regulated Electric, and Regulated Gas. The Merchant Energy segment owns, operates, and maintains fossil, nuclear, and renewable generating facilities, and holds interests in nuclear generating facilities, qualifying facilities, and power projects. It also provides operation and maintenance services, including testing and start-up, to owners of electric generating facilities. In addition, this segment offers products and services to meet the energy requirements of wholesale and retail customers, including distribution utilities, cooperatives, aggregators, and commercial, industrial, and governmental customers. As of December 31, 2009, it had a total generation capacity of 7,118 megawatts. The Regulated Electric segment purchases, transmits, distributes, and sells electricity in central Maryland. It maintained approximately 240 substations, 1,300 circuit miles of transmission lines, and 24,500 circuit miles of distribution lines. The Regulated Gas segment purchases, transports, and sells natural gas in central Maryland. Constellation Energy Group also designs, constructs, and operates renewable energy, heating, cooling, and cogeneration facilities; offers energy performance contracting and energy efficiency engineering services; provides home improvements, service electric and gas appliances, service heating, air conditioning, plumbing, electrical, and indoor air quality systems, as well as offers natural gas marketing to residential customers in central Maryland; and develops and deploys new nuclear plants in North America through its joint venture. The company was founded in 1906 and is based in Baltimore, Maryland.

Wheelabrator Technologies is on a roll. A subsidiary of solid-waste processing giant Waste Management, the company operates municipal-waste incinerators and trash-to-steam plants that convert 7 million tons of municipal solid waste annually into energy. Wheelabrator operates 16 waste-to-energy plants that burn solid waste to produce high-pressure steam; that steam turns turbines, generating more than 800 MW of electricity -- enough to power more than 900,000 homes. It also has five independent power producers (IPPs) that combust a combination of trash, waste wood, tires, coal, and gas to generate another 200 MW of electricity. Wheelabrator operates in the northeastern US, California, Florida, and Washington.

As Sgt. Joe Friday would say: "Just the facts, Ma'am." There are 88 cities in Los Angeles County, and Glendale Water & Power serves one of them. Glendale is the third-largest city in the county, with 200,000 people (about 100,000 foreign-born). Glendale has three hospitals, one health center, 30 parks, and six libraries. The utility generates, transmits, and distributes electricity to 88,000 residential, commercial, and industrial customers in Glendale. The city-owned utility also provides water to 32,500 customers. Glendale Water & Power purchases water from as far away as 500 miles.

United Air Specialists has ESP, and the company knows just when to cause static. The company's industrial air pollution control unit makes electrostatic precipitators (ESP) that electrify airborne particles and remove them from the air. United Air Specialists also makes commercial air-cleaning systems, including kitchen emissions systems. In addition, the company makes electrostatic fluid control and high-precision spraying equipment. The company's products are used in offices, hospitals, bars, schools, and industrial settings. United Air Specialists, founded in 1966, is part of the industrial and environmental filtration business unit of manufacturing group CLARCOR.

Rayburn Country Electric Cooperative (Rayburn Electric) operates in the old stomping grounds of the legendary Texas politician and former speaker of the US House of Representatives. Rayburn Electric is a power generation and transmission organization that supplies wholesale power to five rural distribution cooperatives operating in 16 counties in north central and northeastern Texas. The five distribution cooperatives (Fannin County Electric Coop, FEC Electric Coop, Grayson-Collin Electric Coop, Lamar County Electric Coop, and Trinity Valley Electric Coop) collectively own the company. In 2010 it acquired a 25% stake in a Texas power plant from Calpine for $215 million.

Alkane Energy pursues the arcane task of extracting methane gas from abandoned coal mines in the UK and Germany for the dual purposes of direct supply to industrial clients and for on-site power generation. A renewable energy company, Alkane aims to reduce greenhouse gas emissions, through the capturing of coalbed methane and its conversion to energy. The company designs, builds, and services containerized methane treatment plants and electricity generation facilities that use biogas, landfill gas, sewage gas, and coal mine methane. Alskane operates seven biogas-to-electricity sites in the UK and one in Germany.

Black Hills Power has been delivering energy for over 125 years. It was formed through the consolidation of several smaller electric suppliers in the Black Hills of South Dakota, Montana and Wyoming. Black Hills Power is an investor-owned utility and is part of the Black Hills Corporation family. The utility serves 63,500 customers in 20 communities located in Western South Dakota, Northern Wyoming, and Southeastern Montana.Our customers use 1,501,805,000 kilowatt hours (kWh) of electricity at an average price of $0.0714 per kWh. Cost containment efforts and customer load growth have provided our customers with stable residential electricity costs and our commercial electricity costs that are declining in real terms, and have remained stable for the last 11 years.

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