Artesian Resources Corporation, through its subsidiaries, provides water, wastewater, and engineering services on the Delmarva Peninsula. It distributes and sells water to residential, commercial, industrial, governmental, municipal, and utility customers in the states of Delaware, Maryland, and Pennsylvania. The company also provides water for public and private fire protection to customers in its service territories. In addition, it designs and builds water and wastewater infrastructure; and provides contract water, wastewater, and engineering services. As of December 31, 2009, the company had approximately 76,900 metered customers and 730 wastewater customers, and served a population of approximately 276,000. It served customers through approximately 1,124 miles of transmission and distribution mains. The company was founded in 1905 and is headquartered in Newark, Delaware.

CH Energy Group powers New York state's Hudson Valley. Utility subsidiary Central Hudson Gas & Electric provides electricity to about 300,000 electric and 74,000 natural gas customers in eight counties located in Mid-Hudson River Valley, and delivers natural gas and electricity in a 2,600-square-mile service area that runs from New York City in the south, to Albany. Subsidiary CHEC oversees CH Energy Group's nonregulated businesses in the Northeast and Mid-Atlantic, including petroleum product distribution, alternative energy projects, and energy management services.

Cambridge Water distributes water to about 125,000 residential customers and business customers in the greater Cambridge area. Overall, the company serves a population of about 300,000. Cambridge Water maintains some 2,140 km of water mains and 34 storage towers and reservoirs. All the water supplied to customers is pumped from 25 underground sources. About 55% of water billed is charged by meter. The company offers its clients the delivery of emergency bottled water; customers pre-order water that Cambridge Water will deliver in the event of a major incident. The company is controlled by Cheung Kong Infrastructure Holdings.

Public Utility District No. 1 of Cowlitz County, Washington (or Cowlitz County Public Utility District), a Depression era institution that provides electric utility services to 47,400 customers (including 42,400 residential customers and 5,200 commercial clients) in its service territory. The municipal utility also serves more than 3,800 Longview-Kelso area water utility customers. Like 27 other PUDs in Washington state, Cowlitz County Public Utility District has the authority to offer electric, water, wastewater, and wholesale telecommunication service.

Ocean Power Technologies (OPT) is all about is the company, with offices in the US and UK, uses a proprietary system called PowerBouy to generate electricity using the mechanical energy produced when offshore waves move the anchored buoys up and down. OPT offers a buoy system that connects to power grids as well as an autonomous one that can be used in remote locations and for tsunami monitoring, oceanographic data collection, and offshore aquaculture. Customers include the US Navy, Spanish power producer Iberdrola, and Spanish energy firm TOTAL. It has a contract with Lockheed Martin to build a large power generation system off the west coast of the US.

Powerco is the second-largest distributor of electricity and gas in New Zealand (behind state-owned Genesis Energy). Powerco's network extends across the upper central and lower central North Island and services to 415,000 customers. Its infrastructure represents about 46% of the gas connections and 16% of the electricity connections in New Zealand. The company's Powerco Transmission Services unit is a leading provider of wind farm connections to New Zealand's national grid. Powerco is 58%-owned by investment firm Queensland Investment Corp. and 42% by Australia-based infrastructure group Babcock & Brown Infrastructure.

Ozocan can meet the ozone generator and purifier needs of its water and waste water clients. Ozocan (formerly Hankin Water Technologies) provides water-purification equipment for aquaculture, commercial aquariums, drinking-water treatment, industrial-waste treatment, and other uses. The company has also supplied ozone to laminating plants to speed up the application of polyethylene to paper. Ozone systems have been used to treat drinking water for decades, in both municipal and commercial bottling plants, and have been widely used in swimming pools since the 1950s. The company was established in 1954.

These electric cooperatives serve more than 750,000 residents, businesses, industries and farms in a 15,000 sq. ml. service area. It operates four electric power plants and a 1,450-mile trasmission system, and maintains the Tuttle Creek Reservoir in Southwest Indiana. Hoosier Energy is part of the Touchstone Energy network of electric cooperatives.Who's yer daddy? In terms of providing electricity, for many Indianans (and some residents of Illinois) that would be Hoosier Energy Rural Electric Cooperative, which provides wholesale electric power to 18 member distribution cooperatives in 48 central and southern Indiana counties, and 11 counties in southeastern Illinois.

Summerleaze has blown through a number of businesses -- aggregates, waste disposal, and renewable energy. The family-owned company, originally in the gravels/aggregates business, branched into using methane gas from the waste disposal landfills to make fuel. After acquiring renewable energy firm Thomas Graveson, it created Summerleaze RE-Generation, which has enough capacity (43 MW) to serve 70,000 houses from sites across the UK. Ennate Technology provides power generation equipment sales, maintenance, and hire services; its Green Hydrogen subsidiary supplies renewable hydrogen and oxygen for clients. Summerleaze also has a biogas unit, Summerleaze AnDigestion.

Suffolk County Water Authority provides water services to 375,600 homes and businesses (more than 1.2 million people) in New York's Suffolk County, on the eastern end of Long Island. The water authority's system (the largest water system in the nation operating entirely with groundwater) includes more than 5,500 miles of mains. The authority also runs the largest groundwater testing facility in the US. Suffolk County Water Authority is a public benefit corporation of the state of New York.

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