NORESCO provides utility customers in the US with infrastructure development, design/build services, commissioning strategies, financing, and client-centered asset management services. The company develops and implements build/own/operate distributed generation, cogeneration, or combined heat and power projects; arranges, on a consulting basis, commodity electricity or gas supply; and provides firm contracting of energy supply. It also holds interests in independent power plants. Global leader in HVAC products and systems Carrier, a unit of UTC, owns NORESCO.

Energy Future Holdings (formerly TXU) has seen the future and it works -- powered by electricity. The company is the largest nonregulated retail electric provider in Texas (TXU Energy), with 2.1 million customers, and through its Luminant unit it has a generating capacity of more than 15,510 MW from its interests in nuclear and fossil-fueled power plants in the state. Energy Future Holdings has regulated power transmission and distribution operations through 80%-owned Oncor Electric Delivery. Oncor operates the largest regulated distribution and transmission system in Texas, providing power to more than 3.1 million electric delivery points over more than 117,000 miles of transmission and distribution lines.

Tennessee Gas Pipeline (Tennessee) is one of the several interstate pipelines that make up El Paso Corporation’s Pipeline Group. Tennessee is comprised of approximately 14,000 miles and 1.4mm certificated horsepower. The pipeline stretches from the Mexican border to Canada. Tapping supply regions in the Gulf of Mexico, Texas, Appalachia, and Canada, the Tennessee system serves markets across the Midwest and mid-Atlantic regions, including major metropolitan centers such as Chicago, New York, and Boston.Tennessee’s assets receive natural gas supplies from Canada, including Nova Scotia, and emerging liquefied natural gas (LNG) projects along the Gulf Coast and Eastern Seaboard, as well as emerging domestic supplies from several shale regions. Additionally, the company is poised for continued growth as new natural gas-fired power generation facilities are built to meet the increasing electricity demand along its pipeline route. Well connected, Tennessee has more than 100 interconnects with most major interstate and intrastate pipeline systems serving the Midwest, Northeast, mid-Atlantic, and southeastern United States. Tennessee is prepared to meet the demands of a growing market with the integrity and commitment to service that have made it one of the safest and most reliable pipelines in the United States.

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.

Calvalley Petroleum searches below the plateau for fuel for its customers. The company focuses on exploring for and producing oil and natural gas at Block 9 in the Republic of Yemen. The company, which has about 16 working wells (more than 50 have been drilled), produces some 5,000 barrels of oil each day. Its subsidiary Calvalley Petroleum (Cyprus) Ltd. is the operator of the property, which includes about 552,000 acres of land in the Sayun-Masila basin. Calvalley Petroleum has a net proved plus probable reserves of 7.8 billion barrels of oil equivalent.

Rappahannock Electric Cooperative (REC) keeps the power running smoothly. The consumer-owned cooperative provides electricity to homes, businesses, and industries in parts of 16 counties from the Blue Ridge Mountains to the mouth of the Rappahannock River in eastern Virginia. REC supplies power to 102,000 members over more than 12,000 miles of power line. Once rural in nature, the cooperative's territory has seen large pockets of suburban growth. REC offers surge protection, internet services, and home security plans to entice customers as competition from other suppliers arrives.

Geocon Group digs deep to make sure that its client have confidence in its geotechnical, environmental, geologic, material testing, and environmental contracting services. Projects range from geotechnical investigations to hazardous substance corrective action programs. The company operates throughout the western US and in Mexico. Geocon Group has worked on more than 10,000 projects for more than 2,500 clients. Its 11 offices are in California (Bakersfield, Sacramento, San Diego, San Bernadino, Murrieta, Livermore, and Los Angeles), as well as in Portland and Condon, Oregon, and Las Vegas and Carson City, Nevada.

Vattenfall, which provides power to 4.7 million retail customers in Belgium, Denmark, Finland, Germany, the Netherlands, Poland, Sweden, the UK. The Nordic region's largest utility group has about 33,000 MW of generating capacity in the region from interests in nuclear, hydroelectric, wind, and fossil-fueled power plants; it also markets wholesale energy and operates district heating facilities. State-owned Vattenfall is focusing on its growing its presence across Europe. In 2009 it acquired Belgium-based Nuon (renamed Business Group Benelux) in a $10.9 billion deal, boosting its position as a major European energy group

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.

Caithness Corp., which develops wind and other renewable power plants in the US under the Caithness Energy brand. Although the firm has focused on the development, acquisition, operation, and management of geothermal, hydroelectric, wind, and solar energy power projects, it also develops environmentally friendly fossil-fueled plants. Caithness is one of the largest producers of renewable energy in the US, and has developed more than 350 MW of geothermal projects, 160 MW of solar plants, and 440 MW produced by wind turbines. On the cleaner fossil fuel plant side it has also developed more than 2,000 MW of gas-turbine powered capacity.

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