Terranext focuses its earthbound geotechnical engineering expertise on the next project, as well as the one it is currently working on. An affiliate of engineering group BE&K, Terranext provides environmental engineering and consulting services to industrial, commercial, and government customers through half a dozen offices (in Alabama, Arizona, Colorado, Georgia, Kansas, and New Jersey). The company's services include air quality management, cultural, and natural resource conservation, energy reduction engineering, pollution prevention, water management, and site investigation and remediation. Since 1985 the woman-owned business has conducted more than 3,000 environmental projects.

Ormat Technologies is on an environmentally safe power trip, building geothermal as well as recovered energy power plants. Geothermal technology extracts hot water or steam that is vaporized and used to drive turbines. The fluid is then cooled and recycled back through the process, making it a clean and renewable energy source. Recovered energy utilizes heat produced in other industrial processes. The company, set up by Israel-based Ormat Industries, also sells power units for both types of plants, and sells fossil fuel powered turbo-generators with a capacity of between 400 watts and 4,000 watts. Ormat operates power plants (with a total of 518 MW of power) in Guatemala (2), Kenya, Nicaragua, and the US (10).

Southwest Gas Corporation engages in the purchase, distribution, and transportation of natural gas in portions of Arizona, Nevada, and California. As of December 31, 2009, Southwest Gas Corporation purchased and distributed, or transported natural gas to approximately 1,824,000 residential, commercial, and industrial customers. It also operates as an underground piping contractor that provides utility companies with trenching and installation, replacement, and maintenance services for energy distribution systems. Southwest Gas Corporation was founded in 1931 and is headquartered in Las Vegas, Nevada.

Southern Californians soak up the sun, and the energy. The latter is where Southern California Public Power Authority comes in. The power authority generates and transmits electricity for 10 municipal distribution utilities and one irrigation district in southwestern California. Members include the municipal utilities of the cities Anaheim, Burbank, Colton, Glendale, Los Angeles, Pasadena, and Riverside. The authority has interests in three power plants and three transmission projects in the western US. It is constructing a fourth generation project. Southern California Public Power Authority also provides legislative representation and cost efficiency services to its members.

This Springfield is not Homer Simpson's hometown, or Abe Lincoln's. City Utilities of Springfield, Missouri supplies electricity, natural gas, and water for residents and businesses in the southwestern Missouri town. The utility, which has about 1,970 miles of power lines and 1,300 miles of natural gas mains, serves about 106,560 electric customers, more than 82,220 natural gas customers, and more than 76,600 water customers. It also operates the municipal bus system, which has 25 regular street buses and five demand/response buses. City Utilities of Springfield has a service region of 320 sq. ml. and serves a base population of 229,000.

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.

Egad, EGAT, that's a lot of juice. The state-owned Electricity Generating Authority of Thailand (EGAT) produces more than 15,000 MW of electricity and buys another 10,600 MW from independent power producers. EGAT not only generates or buys most of the nation's power, it holds a monopoly on transmission to the distributors (Metropolitan Electricity Authority and Provincial Electricity Authority). The utility operates hydroelectric, thermal, and alternative power plants, and provides engineering, maintenance, and other energy-related services. EGAT has also announced plans to expand into telecommunications and natural gas, and to acquire coal mining assets in Indonesia.

American Water Works Company, Inc. provides water and wastewater services to residential, commercial, and industrial customers in the United States and Canada. As of December 31, 2009, the company served approximately 16 million people with drinking water, wastewater, and other water-related services in 35 states and two Canadian provinces. It owned approximately 80 surface water treatment plants, 600 groundwater treatment plants, 1,200 groundwater wells, 50 wastewater treatment facilities, 1,200 treated water storage facilities, 1,200 pumping stations and 100 dams, and 49,000 miles of mains and collection pipes. American Water Works Company also enters into public/private partnerships, including operation and maintenance contracts; and design, build, and operate contracts for the provision of services to water and wastewater facilities for municipalities and the United States military. In addition, the company designs, builds, and operates smaller-scale water and wastewater treatment plants for real estate developers, industrial companies, and new or expanding communities; and provides services to domestic homeowners to protect against the cost of repairing broken or leaking pipes inside and outside their homes. Further, it provides granular activated carbon for water purification, and involves in the management and disposal of biosolids and wastewater by-products for municipal and industrial customers. The company was founded in 1886 and is based in Voorhees, New Jersey.

Dalkia doesn't balk when it comes to managing its clients' energy needs. The company's services include electricity, water, and natural gas procurement, energy efficiency consulting, electrical and mechanical contracting, building management control, and outsourced facilities maintenance. It installs onsite power generation, HVAC (heating, ventilation, and air conditioning), water treatment, fire protection, and lighting systems. The company serves manufacturers, offices, schools, hospitals, and other businesses. Its Sterience subsidiary sterilizes surgical instruments for hospitals.

Although The Peoples Natural Gas Company brings the power of natural gas to the people of the Keystone state. The company, which operates as Dominion Peoples, serves about 359,000 commercial, industrial, residential, and transportation natural gas customers in 16 counties in southwestern Pennsylvania. By purchasing methane gas in Pennsylvania, the company keeps costs down by eliminating out-of-state transportation expenses. The gas utility was a division of Dominion Delivery, the gas and electric distribution and retail energy marketing unit of Dominion Resources. In 2010 Dominion Resources sold Peoples Natural Gas to a unit of investment firm SteelRiver Infrastructure.

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