The Connecticut Light and Power Company
P.O. Box 270
Hartford, CT 06141-0270
(860) 947-2000

News Release

Contacts: Frank J. Poirot
Office: 860-665-3409
After Hours Phone: 800-286-2000

CL&P Energizes New Killingly Substation as Part of Strategy to Meet Regional Energy Needs

BERLIN, Connecticut, January 5, 2007 — The Connecticut Light and Power Company (CL&P), part of the Northeast Utilities System (NYSE: NU), today announced that on December 16, 2006, it energized a new electric substation in Killingly, Connecticut. This 345-kilovolt (kV)/115-kV substation will improve the flow of power into northeast Connecticut and provide customers with more reliable energy.

Completion of this project is another significant step in NU’s strategic business plan that focuses on improving regulated utility infrastructure to meet customers’ energy needs. Construction of CL&P’s Killingly substation began in November 2005 and was completed on time at a cost of $29 million, $3 million below budget.

“This new substation helps improve the reliability of the region’s power supply,” said Lee Olivier, NU Transmission Group president. “The Killingly substation makes a vital connection to the region’s existing transmission system, improving access to competitively priced power and ensuring a safe, secure and reliable delivery system to customers in the state of Connecticut and those in New England.”

CL&P energized its new Bethel-to-Norwalk (B/N) 345-kV transmission line in southwest Connecticut on October 12, 2006. One of the largest transmission projects recently completed in the country, the $340 million B/N project came in under budget by about $10 million and ahead of schedule by two months. The line allows an additional 600 megawatts of electricity to be delivered to southwest Connecticut and the region. The B/N project used state-of-the-art technology such as a gas-insulated system substation that reduced land space to meet site limitations. The company is also leading the industry in its application of underground transmission by installing the longest length of 345-kV solid underground cable in the United States.

The B/N project is the first of four major initiatives in southwest Connecticut that will resolve long-standing reliability challenges and will make our regional transmission grid more secure and efficient. In Connecticut, work is under way on the Middletown-to-Norwalk project, the Glenbrook Cables project and the Long Island Replacement Cable, all of which further extend the benefits of the 345-kV bulk power system into southwest Connecticut.

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The Connecticut Light and Power Company (CL&P) has been part of everyday life in Connecticut for more than 100 years, providing safe and reliable electric service to homes, neighborhoods and businesses. With more than 1.1 million customers in 149 cities and towns, CL&P is an active member in the communities it serves, offering programs in energy conservation, economic development and environmental education. CL&P is part of the Northeast Utilities System (NYSE: NU). For more information, please visit

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