news room

CMP News

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

Corporate Communications - 

Release: Immediate  


Central Maine Power Begins Transmission Line Construction in Portland, Maine


AUGUSTA, Maine, February 6, 2013 — Central Maine Power Company (CMP), a subsidiary of Iberdrola USA, began work on a new electric transmission line between Portland and Westbrook, Maine. The $3 million project will replace an existing 3 ½-mile line between a substation near Morrill's Corner in Portland and another substation near Prides Corner in Westbrook. The work is part of a plan by the company to invest nearly $400 million in 2013 to expand and modernize its system.


“Some of this equipment has been in place since the 1920s,” said John Carroll, CMP spokesperson. “It has a long lifespan, but not infinite. The new line will ensure continued reliability and provide transmission system capacity to meet growing demand in this part of the city.”


The company will build the new line along the centerline of the existing corridor using slightly taller wood poles and higher capacity conductors. The line will continue to operate at 34,500 volts, although it is designed to operate at higher voltage if more capacity is needed in the future. Work began this week to clear tree growth back to the edges of the corridor and establish temporary access roads for construction vehicles. The existing transmission line will be taken out of service in early March at which time crews will begin removing the existing line to make way for new poles, conductors and guy wires. Once the construction is complete, CMP will stabilize any disturbed soils and restore the groundcover in the corridor. CMP expects to energize the new line and complete all work in the corridor by the end of May.


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