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345,000 Volt Transformer Set for Delivery to Lewiston Substation



AUGUSTA, Maine, May 18, 2012 — Central Maine Power Company (CMP), a subsidiary of Iberdrola USA, is set to take delivery of a 345,000 volt autotransformer for a substation in Lewiston, Maine as part of the company’s $1.4 billion Maine Power Reliability Program. The 285-ton autotransformer arrived by ship in Portland Harbor last Saturday May 12, and was carried by train to a rail siding in Greene, Maine on Wednesday. It will make the final, six-mile trip on U.S. Route 202 from Greene to the site of a $58-million substation on Larrabee Road in Lewiston.  On Saturday, May 19 starting at 6 a.m., a special heavy-haul trailer measuring nearly 180 feet in length will make the journey in about two hours. Drivers in the area have been warned to seek alternative routes to avoid delays on Saturday morning.


“The Larrabee Road Substation will supply a wide network of transmission lines in central Maine,” said Douglas Herling, CMP’s vice president for special projects. “We’re building a stronger, smarter grid to ensure long-term reliability and increased capacity in the transmission system and to provide better access to New England energy markets for renewable generation projects in the Maine.”


Central Maine Power Company’s MPRP is a $1.4 billion investment in Maine’s bulk power transmission system. The five-year project includes the construction of four new 345,000 volt substations, one 345,000 volt switchyard, upgrades to more than 40 existing substations, and the installation or rebuilding of nearly 440 miles of transmission line in 75 communities from Eliot to Orrington. The Larrabee Road Substation autotransformer, scheduled to go on line in late 2012, is among the largest units in the Central Maine Power system. Transformers are used to raise or lower voltage on electrical systems. The Larrabee Road autotransformer will step down transmission line voltage from 345,000 volts to 115,000 volts to power the grid serving Androscoggin, Franklin, Kennebec, Oxford, and Sagadahoc counties. The MPRP has provided a timely stimulus to the Maine economy, employing nearly 2,700 workers among contractors, consultants and suppliers, plus as many as 900 more jobs through indirect and induced employment spurred by the construction spending.


Iberdrola, USA is the U.S. subsidiary of Iberdrola, a global energy company based in Spain. The chairman of Iberdrola, Ignacio Galán visited the Lewiston site in early May during the final stages of preparation for the delivery of the autotransformer. With the support of Iberdrola and Iberdrola USA, CMP invested more than $500 million in its Maine facilities in 2011, and the company expects to invest about $470 million in 2012.

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About Central Maine Power Company (CMP): Central Maine Power Company, a subsidiary of Iberdrola USA, is Maine’s largest electricity transmission and distribution utility. The company delivers about 9 billion kilowatt hours of electricity annually to more than 600,000 homes and businesses, representing about 80% of Maine’s annual consumer sales of electricity. The company has been ranked #1 in customer satisfaction six times by J.D. Power and Associates. For more information, visit

About Iberdrola USA: Iberdrola USA, a subsidiary of global energy leader Iberdrola, S.A., is an energy services and delivery company serving more than 2.4 million customers in upstate New York and New England. For more information about Iberdrola USA, visit




Crew of the m/v Fairlift offloads the 285-ton, 345,000 volt autotransformer at the Sprague Company’s Portland Terminal, Portland, Maine. May 12, 2012





Ignacio Galán, Chairman of Iberdrola Group (left), tours the Larrabee Road substation in Lewiston, Maine

with CMP engineer William Sawyer, May 3, 2012.