Active Power, Inc., together with its subsidiaries, designs, manufactures, and markets critical power quality solutions. It provides various products that deliver continuous clean power, and protects customers from voltage fluctuations, such as surges and sags, and frequency fluctuations, as well as offer temporary power to bridge the gap between a power outage and the restoration of utility power. The company offers CleanSource UPS, a battery free uninterruptible power supply system (UPS) that integrates UPS electronics and flywheel energy storage system into one compact cabinet. Active Power, Inc. also provides CleanSource DC, which is a battery-free replacement option for lead-acid batteries for use in bridging power; CoolAir DC; CoolAir UPS; and GenSTART, which is a battery-free, starting modular system. It offers continuous power systems that comprise UPS system, switchgear, and a generator under the PowerHouse brand name. Active Power, Inc. also provides services, including engineering, installation, start-up, monitoring, and repair for its products. The company serves data centers, manufacturing, technology, broadcast and communications, financial, utilities, healthcare, government, and airport industries. It sells its products through direct sales employees, value added resellers, manufacturers representatives, distributors, strategic IT partners, and original equipment manufacturer partners in the United States, Europe, the Middle East, Africa, the Asia Pacific, and Latin America. The company was founded in 1992 and is headquartered in Austin, Texas.

Emera is an emerging force in a new energy era. Subsidiary Nova Scotia Power Inc. (NSPI) generates, transmits, and distributes more than 97% of the electricity in Nova Scotia, where it serves 486,000 residential, commercial, and industrial customers. Most of NSPI's more than 2,290 MW generating capacity is from fossil fuel plants. Emera has electric utility operations into the US through its Maine-based Bangor Hydro-Electric, which serves about 117,000 customers. It markets wholesale energy and provides asset management services. Emera owns Brunswick Pipeline (which ships LNGs), and has a minority stake in Maritimes & Northeast Pipeline (natural gas). It also has minority stakes in utilities in the Caribbean.

Energieversorgung Weser-Ems (EWE) is a German powerhouse. Operating through some 30 subsidiaries and associated companies, EWE is a multi-service energy company primarily involved in distributing natural gas and electricity. In the past few years, however, EWE has expanded its activities to include telecommunications and information technology. EWE is Germany's fifth-largest energy company, serving more than one million electricity customers and providing about 770,000 customers with natural gas. Subsidiary EWE NaturWatt sells electricity exclusively from renewable sources. In 2008, German electricity distributor EnBW agreed to buy 26% of EWE for just more than $3 billion.

City of Tacoma Department of Public Utilities was fated to fulfill the electric and water desires of the City of Destiny's dwellers. The municipal utility's Tacoma Power unit generates, transmits, and distributes electricity to more than 166,000 homes and businesses in Tacoma, Washington. Tacoma Water serves about 96,000 customers; the division's water supply comes from wells and the Green River Watershed. Tacoma Public Utilities also oversees Tacoma Rail, a freight-switching railroad with some 200 miles of track, and the Click! Network, a high-speed data network that uses fiber-optic cable.

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.

WPPI Energy (formerly Wisconsin Public Power) generates, purchases, and supplies wholesale electricity to 51 municipal distribution utilities, which in turn serve more than 192,000 homes and businesses in Wisconsin, Upper Michigan and Iowa. Founded as a political subdivision of the State of Wisconsin, the utility was formed by its member-owners (the municipalities) in 1980. WPPI Energy has interests in power plants that give it a capacity of more than 1,120 MW. It also engages in wholesale energy transactions with other regional utilities and energy marketers and is a major advocate of green energy power resources.

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.

Piedmont Natural Gas Company, Inc., an energy services company, distributes natural gas to residential, commercial, industrial, and power generation customers in portions of North Carolina, South Carolina, and Tennessee. It also operates various energy-related businesses, including unregulated retail natural gas marketing, interstate natural gas storage, and intrastate natural gas transportation. As of October 31, 2009, the company served 952,469 retail customers and 61,000 customers served by municipalities. Piedmont Natural Gas Company, Inc. was founded in 1949 and is headquartered in Charlotte, North Carolina.

RPG Enterprises has more than 20 companies that span energy, retail, manufacturing, technology, and entertainment. The company's primary operations include electricity generation and distribution (through CESC Limited and Noida Power) and utility and telecommunications infrastructure development, as well as carbon black production and tire manufacturing. Other operations include supermarkets (Spencer's Hypermarket), retail music and health and beauty stores, software, telecommunications, pharmaceuticals, and music recording businesses. RPG Enterprises is controlled by the Goenka family; the company was formed in 1979 to hold the family's diversified business interests.

Environmental, Safety & Health, Inc. (ES&H) will follow through. Serving US companies and government agencies, ES&H provides training and services for safety, health, environmental, and regulatory concerns. The company also offers general contractor services for construction, demolition, and remediation projects. Clients include corporations like Schering-Plough and Alcoa, as well as districts or regional divisions of government agencies like the FAA and US Army Corps of Engineers. Founded in 1997, ES&H is based in Tennessee and operates offices in Delaware and Louisiana.

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