SEMCO ENERGY is owned by energy investment firm Continental Energy Systems through its Cap Rock Holding unit. Alaska and Michigan have more in common than a cold climate. SEMCO ENERGY serves approximately 410,000 natural gas consumers in both states. The company's main subsidiary is utility SEMCO ENERGY Gas, which distributes gas to about 280,000 customers in 24 Michigan counties. SEMCO's ENSTAR Natural Gas unit distributes gas to about 130,000 customers in and around Anchorage, Alaska. The company's unregulated operations include propane distribution in Michigan and Wisconsin; pipeline and storage facility operation; and information technology outsourcing.

Power and Texas come together at the Texas Municipal Power Agency, which provides electricity generation and transmission services to four municipal utilities (Bryan, Denton, Garland, and Greenville). The joint powers agency, which was created in 1975 by its member cities, owns and operates the 462-MW Gibbons Creek power plant and related transmission assets. In the wake of the oil embargo the early 1970s, the Texas Legislature created joint powers agencies that could perform all the duties of utilities except sell power to non-members. Bryan, Denton, Garland, and Greenville then formed the Texas Municipal Power Agency and harnessed locally available lignite to fuel a power generation plant.

Missouri Gas Energy delivers natural gas in the "Show-Me" state. The utility, an operating unit of national natural gas power player Southern Union, distributes natural gas to more than 500,000 customers in 155 cities and towns located in central and western Missouri. Its territory stretches from St. Joseph in the north to Joplin and neighboring areas in the south, and from the Kansas border east to Ozark (near Springfield). Missouri Gas Energy has facilities in St. Joseph, Lees Summit, Warrensburg, Joplin, Republic, Neosho, and Monett. The Missouri Public Service Commission oversees Missouri Gas Energy's operations.

Clean water is the goal of H2O Innovation. For amusement parks, campgrounds, cities, schools, zoos, and other enterprises, H2O Innovation uses micro filtration, ultra filtration, nanofiltration, and reverse osmosis to create drinking water, as well as clean water for manufacturing and other purposes. H2O Innovations also treats wastewater, offers equipment for the maple syrup industry, and desalinates seawater and brackish water. In 2007 it became the first North American company to be listed on the Alternext (Euronext) Exchange in Paris. By 2008 the company had installed more than 400 systems in Canada, the US, and elsewhere.

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.

Tri-State Generation and Transmission Association supplies wholesale electricity to 44 rural distribution utilities that serve about 1.5 million customers (more than 599,300 meters) in Colorado, Nebraska, New Mexico, and Wyoming (New Mexico was a late addition to the association's service region). The member-owned cooperative has a generating capacity of 3,840 MW from its interests primarily in fossil-fueled power plants, and it operates 5,270 miles of transmission lines. Tri-State Generation and Transmission also purchases power and sells its excess supply to other utilities.

Southern Union Company, together with its subsidiaries, engages in the gathering, processing, transportation, storage, and distribution of natural gas in the United States. It operates in three segments: Transportation and Storage, Gathering and Processing, and Distribution. The Transportation and Storage segment engages in the interstate transportation and storage of natural gas in the Midwest and from the Gulf Coast to Florida. It also provides liquefied natural gas (LNG) terminalling and regasification services. The Gathering and Processing segment involves in gathering, treating, processing, and redelivering natural gas and natural gas liquids (NGLs) in Texas and New Mexico. It operates a network of approximately 5,500 miles of natural gas and NGL pipelines, 4 cryogenic processing plants with a combined capacity of 410 MMcf/d, and 5 natural gas treating plants with a combined capacity of 585 MMcf/d. The Distribution segment engages in the local distribution of natural gas in Missouri and Massachusetts. This segment serves approximately 550,000 residential, commercial, and industrial customers through local distribution systems consisting of 9,140 miles of mains, 6,185 miles of service lines, and 45 miles of transmission lines. Southern Union company was founded in 1932 and is based in Houston, Texas.

Hyflux Ltd., an investment holding company, provides integrated water management and environmental solutions. The company involves in the seawater desalination, raw water purification, wastewater cleaning, water recycling, water reclamation, and ultra pure water production for municipal and industrial clients, as well as provides home consumer filtration and purification products. It also designs, builds, and sells water treatment plants, seawater desalination plants, wastewater treatment plants, and water recycling plants under service concession arrangements. In addition, the company engages in the development of membrane applications in resource recovery, waste recycling, and energy reclamation, including applications, such as used oil recovery and recycling; development and commercialization of specialty materials, such as l-lactic acid from natural renewable resources; and separation, concentration, and purification treatments for manufacturing process streams. It has operations in Singapore, Southeast Asia, China, India, Algeria, the Middle East, and North Africa. Hyflux Ltd. has a joint venture agreement with Mitsui & Co. Ltd. to develop water projects in China. The company was formerly known as Hydrochem (S) Pte Ltd. Hyflux Ltd. was founded in 1989 and is headquartered in Singapore, Singapore.

Portsmouth Water Limited serves an area of the UK extending from South East Hampshire to West Sussex, and from the River Meon to the River Arun. Portsmouth Water supplies about 160 million liters of water per day. Its 301,200 customers include industries, government establishments, and commercial businesses, as well as a residential population of 657,000. The company operates a 3,270-km network of water mains and about 20 treatment works. About 85% of the company's supply comes from groundwater sources.

Global Water Resources (GWRI) took the phrase "Think globally, act locally" to heart. The company provides water, wastewater, and recycled water utility services to 14 utilities and more than 60,000 people in its service area around Phoenix. Its recycled water is treated and purified wastewater used for non-potable and outdoor purposes, sent through a separate system of pipes than drinking water. GWRI says its reclaimed water project saves up to 40% of drought-prone Arizona's scarce groundwater. The utility also extends water and wastewater infrastructure financing to regional developers and builders. The company was formed in 2003. Once privately held, GWRI went public in an IPO in late 2010.

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