Maine Approves 800-MW Wind Farm, 111-Mile Transmission Line
The Maine Public Utilities Commission approved an 800-MW onshore wind project and a 111-mile transmission line on Aug. 26, ENR reports, setting up years of construction work across northern New England.
Market Impact
Clearway Energy Group will develop the wind project in Aroostook County, Maine’s largest to date, while utility Avangrid builds the 1,200-MW transmission line running from Haynesville to Pittsfield to connect the power into the regional grid. Maine will purchase about 600 MW of the output, with the remainder feeding into the New England grid shared by Connecticut, Massachusetts, Rhode Island and Vermont, according to commission spokesperson Susan Faloon.
The commission did not disclose final project costs but previously projected $1.8 billion over 30 years. States will share transmission line costs based on value provided, with Maine capped at no more than 11% of the total. Commissioner Patrick Scully called the interstate cost-sharing arrangement a potential “model for other regions,” while Commissioner Carrie Gilbert acknowledged coordinating “different procurement processes and legislative schedules” across five states will be difficult. Gov. Janet Mills said the projects will “create thousands of jobs and new economic opportunities in rural communities.” Not everyone is on board: Maine Rep. Reagan Paul raised concerns about higher costs for ratepayers, while House Speaker Ryan Facteau cited a projected $387 million in customer savings.
What It Means for Subcontractors
- Contractors have not yet been named for either the generation or transmission project, and project specifics remain unfinalized, per commission spokesperson Susan Faloon. Firms should watch for procurement announcements as engineering, environmental review and permitting proceed.
- The 111-mile line from Haynesville to Pittsfield will rely heavily on existing power corridors and rights-of-way, according to Avangrid spokesperson Jon Breed, which could shape the scope of clearing, foundation and line work versus new-corridor construction.
- Expect demand for civil, electrical and transmission-line trades, including tower foundation work, substation construction at the Pittsfield interconnection point, and turbine foundation and erection work in Aroostook County once contracts are let.
- The project still needs federal environmental impact review and FERC approval for the transmission line, so firms bidding on packages should track the New England States Committee on Electricity’s work toward a voluntary interstate agreement before assuming firm timelines.
- Cost-sharing among Maine, Connecticut, Massachusetts, Rhode Island and Vermont is still being finalized, with Maine capped at 11% of transmission costs. This unresolved allocation could affect funding timing and contract sequencing, so subcontractors should treat construction schedules as tentative until the interstate agreement is submitted to FERC.
