news room

CMP News

Central Maine Power Company, 83 Edison Drive, Augusta, ME 04336 (207) 622-NEWS 

Corporate Communications - 

Release: Immediate  


CMP Energizes 345,000 Volt Substation in Lewiston, Maine
First major component of the $1.4 billion Maine Power Reliability Program set to come on line

AUGUSTA, Maine, December 20, 2012 — Central Maine Power Company (CMP), a subsidiary of Iberdrola USA,  energized the first major substation in the company’s $1.4 billion Maine Power Reliability Program. The $57-million Larrabee Road Substation is among the largest facilities in the Central Maine Power system, and the new 345,000 volt (345 kV) autotransformer is the first of four to be installed as part of the company’s upgrade to its bulk power system. The autotransformer will step down transmission line voltage from 345 kV to 115 kV to supply the electrical grid for communities in Androscoggin, Franklin, Kennebec, Oxford, and Sagadahoc counties.

“This substation is a significant enhancement to our bulk power grid in western Maine,” said Sara Burns, president and chief executive officer of Central Maine Power. “During two and a half years of construction, the MPRP has provided several thousand jobs when Maine’s economy has been struggling. With this substation coming on line, we’ve turned a corner, and we truly have the first piece of a stronger, smarter grid for Maine’s future.”

The Larrabee Road Substation will be the company’s first bulk power facility designed to International Electrotechnical Commission (IEC) 61850 standards for protection and control technology. The IEC-61850 Protection and Control technology will be integrated with the company’s system controls to provide a new level of operational awareness for the utility, opening the door for automation and predictive-based maintenance.

Central Maine Power Company’s MPRP is a $1.4 billion investment in Maine’s bulk power transmission system. The most significant upgrade in more than four decades, the MRPP will ensure continued grid reliability and improved access to the region’s bulk power system for the state’s growing renewable and non-renewable energy industries. The five-year project  includes the construction of four new substations with 345 kV autotransformers, one 345 kV switchyard, plus 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. Since the start of construction in 2010, 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.


Follow us on Twitter.







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