New England Clean Energy Connect

New England Clean Energy Connect
Name	New England Clean Energy Connect
Other name	NECEC
Location	Maine, Quebec, United States, Canada
Status	Cancelled / Suspended (as of 2021–2023)
Owner	Central Maine Power, Hydro-Québec (transmission interest)
Length km	145
Capacity MW	1,200
Voltage kV	345
Type	High-voltage direct current / High-voltage alternating current (proposed corridor)
Start	Quebec–Maine border
End	Lewiston, Maine
Start year	2020 (construction commenced)
Planned completion	2022 (original)

New England Clean Energy Connect is a proposed transmission project intended to deliver large-scale hydroelectricity from Hydro-Québec in Québec to load centers in New England. The project was developed by Central Maine Power (a subsidiary of Avangrid) and intended to interconnect at existing transmission hubs near Lewiston, Maine and tie into the ISO New England grid. The proposal intersected multiple regulatory regimes including Maine Public Utilities Commission, Federal Energy Regulatory Commission, and provincial authorities in Québec, generating national attention across Canada and the United States.

Background and project description

The project aimed to transmit up to 1,200 megawatts of renewable firm energy from La Romaine and other Hydro-Québec sources to Massachusetts, Vermont, New Hampshire, and Maine via a high-voltage transmission line. Proponents framed the scheme as a mechanism to help Massachusetts Clean Energy Standard and Regional Greenhouse Gas Initiative targets by displacing fossil-fuel generation in ISO New England markets. Developers cited modeled benefits for Bangor Hydro Electric Company service territories and for utilities such as Eversource Energy and National Grid-affiliated entities. Critics questioned claims made relative to New England Governors and Eastern Canadian Premiers (NEG-ECP) climate commitments and market effects.

Route, engineering, and specifications

The project proposed a roughly 145-kilometer corridor including alternating current upgrades and new right-of-way from the Maine–Québec border to a converter or interconnection near Lewiston. Engineering designs included 345 kV AC lines and potential HVDC components, corridor widening, new steel lattice towers, and substation expansions at locations such as Wiscasset and Saco River crossings. Construction plans required specialized contractors experienced with projects like TransCanada interties and international tie-lines previously built by Hydro-Québec TransÉnergie. Environmental mitigation measures referenced work by firms that have executed projects for U.S. Army Corps of Engineers and provincial utilities.

Environmental and regulatory review

Regulatory review touched agencies including the Maine Department of Environmental Protection, Maine Land Use Planning Commission, Maine Public Utilities Commission, and federal entities such as the U.S. Fish and Wildlife Service for habitat impacts. Environmental assessments addressed wetlands under the Clean Water Act jurisdiction and impacts to species listed by the U.S. Endangered Species Act, including potential effects on riparian habitat along the Kennebec River basin and migratory corridors used by species monitored by Maine Department of Inland Fisheries and Wildlife. Québec review involved provincial permitting through ministries responsible for energy and natural resources. Intervenors included conservation organizations like Maine Audubon and national groups that have engaged with cases before the U.S. Court of Appeals for the First Circuit.

Legal, political, and community response

The proposal became a flashpoint in state and cross-border politics, drawing responses from figures such as governors from Maine and leaders in Québec and involving companies like Avangrid and Hydro-Québec. Towns along the route, including Lewiston, Plummer, and municipalities in Franklin County, Maine, held public hearings. Political actors including members of the Maine Legislature and federal representatives from Maine's congressional delegation weighed in, with ballot initiatives and referenda shaping the public debate similarly to past energy disputes like those around Northern Pass in New Hampshire.

Economic impacts and energy market effects

Analyses by utilities and independent evaluators projected impacts on wholesale energy prices in ISO New England markets, potential capacity market effects administered by the New England Power Pool (NEPOOL), and implications for regional transmission planning conducted by New England States Committee on Electricity (NESCOE). Advocates argued for consumer savings and reduced Regional Greenhouse Gas Initiative allowance needs, while opponents cited studies forecasting limited price reductions and effects on Maine ratepayers. Investment partners, financing by institutions with experience in projects backed by World Bank or multinational lenders, and potential impacts on local employment in counties such as Androscoggin County, Maine were widely debated.

Construction, operation, and timeline

Groundbreaking and right-of-way clearing began in 2020, with schedules projecting energized service in 2022 contingent on permits and litigation outcomes. Construction phases included surveying, tree clearing, foundation installation, tower erection, conductor stringing, substation work, and final commissioning tests overseen by inspectors from agencies including the Occupational Safety and Health Administration and state equivalents. Operation would have required coordination with ISO New England for dispatch, congestion management, and interconnection procedures governed by the North American Electric Reliability Corporation reliability standards.

Controversies and litigation

Litigation and political contests involved ballot measures, municipal ordinances, and appeals in state and federal courts, with involvement from advocacy organizations such as Mainer's Alliance for Clean Energy and trade groups representing transmission developers. Disputes contested eminent domain use, municipal tree-cutting bylaws, and siting authority allocation between entities like the Maine Public Utilities Commission and local planning boards. High-profile comparisons were drawn to litigation over the Keystone XL pipeline and the Northern Pass transmission project, with outcomes influencing interprovincial energy trade discussions between Ottawa and Washington, D.C. as well as the strategic planning of major utilities like Consolidated Edison and Exelon.

Category:Energy infrastructure in Maine Category:Hydro-Québec projects Category:Transmission lines in the United States