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.

Centrais Eletricas Brasileiras S.A. – Eletrobras primarily engages in the generation, distribution, transmission, and commercialization of electric power; and construction and operation of nuclear power plants in Brazil. The company also assists Brazil's Ministry of Mining and Energy in designing the country's policy for the energy sector; provides guarantees and acquires debentures of companies and holders of public electric power services; grants loans and guarantees for technical and scientific research institutions; promotes and supports research in the power sector in connection with the generation, transmission, and distribution of electric power, as well as studies involving the exploitation of watershed for various purposes; contributes to the education of technical staff and qualified workers required by the Brazilian electric power sector through specialized training programs or assists national educational institutions or provides scholarships or signs agreements with foreign institutions that promote the development of specialized technical personnel; and co- operates technically and administratively with companies in which it holds interests, and with the agency of the Ministry of Mining and Energy. In addition, it manages incentive program for alternative sources of electric power, a program of the federal government that aims to enhance the diversification of the Brazilian energy model and search for regional solutions based on renewable electric power sources produced by independent agents. The company is headquartered in Rio de Janeiro, Brazil.

United Utilities Group PLC, through its subsidiaries, engages in the ownership, operation, and maintenance of water and wastewater networks in the United Kingdom and internationally. It supplies water covering a population of approximately 7 million people, and 2.9 million households and business premises; and involves in the collection and treatment of wastewater through a network of 43,419 kilometers of sewers. The company also operates electricity distribution network, and high voltage networks for businesses; and gas distribution network, as well as pipes and the equipment used to pump, condition, and store gas. In addition, United Utilities Group PLC provides consulting services and project management services; property management services; multi-utility metering operations and metering installation services; technical and management services; and asset management services. The company was formerly known as United Utilities Newco Limited and changed its name to United Utilities Group PLC in April 2008. United Utilities Group PLC was founded in 1989 and is headquartered in Warrington, the United Kingdom.

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.

Dairyland Power Cooperative provides its customers with lots of juice in the land of lactose. The firm provides electricity generation (about 1,420 MW of generating capacity) and transmission services for 25 member distribution cooperatives and 16 municipal utilities in five states (including Wisconsin). The member cooperatives and municipal utilities in turn distribute electricity to almost 252,900 consumers. Dairyland Power generates more than 1,100 MW of capacity from its coal-fired power plants; it also operates 3,150 miles of transmission lines and 280 substations.

LifeSource Water Systems uses is customer satisfaction. The water treatment product company manufactures and distributes water filtration equipment to residential, commercial, and industrial customers. LifeSource Water Systems' system uses an activated carbon filter rather than salts or chemicals. Its Beotron branded systems have earned the Gold Seal certification issued by the Water Quality Association. The company operates primarily in California; it also maintains outlets in Idaho and Nevada. LifeSource Water Systems was founded in 1984.

NSTAR is looking to outshine its rivals through the efficiency of its regulated electric and natural gas sales, distribution, and transmission operations. The utility holding company transmits and distributes electricity to almost 1.2 million homes and businesses through NSTAR Electric and serves some 300,000 natural gas customers in Massachusetts through NSTAR Gas. The company also markets wholesale electricity, and operates liquefied natural gas (LNG) processing and storage facilities. Its NSTAR Communications unit owns about 240 miles of fiber optic network. In 2010 the company agreed to be acquired by Northeast Utilities for about $4.2 billion.

Better PLC, or Better Place as it goes by, wants people to imagine a world free of oil. The startup, which was founded in 2007 on $200 million of venture capital, is teaming with automakers, battery manufacturers, energy companies, and governments to help make electric cars more viable worldwide. As an alternative to traditional gas stations, the company is attempting to build and operate an electric recharge grid to power electric car battery recharging stations, which drivers pay to access (much as phone users pay to access a mobile network). Better Place has begun work with partners in Australia, China, Denmark, Israel, Japan,and the US on this sustainable model. The company was founded by CEO Shai Agassi.

Renegy Holdings (formerly Catalytica Energy Systems) was formed in the 2007 merger of Catalytica with the renewable energy divisions of NZ Legacy, a land and energy development firm. Among other ventures, Renegy has built a biomass power generation plant near Snowflake, Arizona, that came online in 2008. The company has long-term power purchasing agreements in place with Arizona Public Service and Salt River Project to buy biomass electricity from the Snowflake White Mountain Power plant. To save costs, in 2009 Renegy delisted its stock from the NASDAQ exchange.

Power and light give a lot of independence to people, and City of Independence Power & Light Department (commonly referred to as Independence Power & Light) makes sure that citizens of Independence, Missouri, have all the power and light they need. The municipal electric utility company generates, purchases, transmits, and distributes reliable and affordable electricity to more than 50,000 customers. The utility, which maintains 12 generating units, 13 major substations, and more than 650 miles of power lines, serves the entire City of Independence, with the exception of Lake City Arsenal.

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