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Con Edison Transmission’s Maine Power Express Project Moves Forward in New England

Con Edison Transmission’s Maine Power Express project has achieved a significant project development milestone.

Maine Power Express has secured a key regulatory approval this week as ISO New England officially determined that the clean energy project can reliably interconnect with the regional electric grid in Boston, MA. By approving the project’s I.3.9 application, ISO New England determined Maine Power Express will not have a significant, adverse effect on the reliability or operating characteristics of the regional grid and its participants. All energy projects must secure this approval in order to be connected to the New England grid.

Maine Power Express is a proposed transmission line that will carry 1,040 megawatts of clean, reliable power underground and undersea from Northern Maine to Boston Massachusetts. Maine Power Express is competing in the Massachusetts Clean Energy RFP that is offering 20 year Power Purchase Agreements (PPAs) for renewable energy and associated transmission.

The approved I.3.9 by ISO New England puts Maine Power Express as only one of four projects of the proposed eight transmission proposals that have achieved this significant milestone.

Con Edison Transmission has obtained exclusive rights to develop Maine Power Express and is expected to be the owner and operator of the project. Con Edison Transmission has received significant interest from renewable and non-renewable generators in potential use of Maine Power Express for transmission transport.


Maine Power Express: Maine Power Express, LLC (MPX, LLC) is a Joint Venture between Loring Holdings, LLC, National Resources Energy, LLC, and Transmission Developers, Inc. MPX, LLC has assembled an expert team of development and strategic partners to design, engineer, permit, finance, construct and operate the MPX Project. For more information, visit:

Con Edison Transmission, Inc.: Con Edison Transmission, Inc. (CET) is a subsidiary of Consolidated Edison, Inc. [NYSE: ED], one of the nation’s largest investor-owned energy companies, with approximately $12 billion in annual revenues and $49 billion in assets. CET invests in electric and gas transmission projects. For additional information, visit:


MPX – Ryan Gahagan, (207) 551-3131,

Con Edison – Michael Clendenin, (212) 460-4111,

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