National Grid pulls the plug on a power line from Quebec that would run through Concord

The southern portion of the proposed Twin State Clean Energy Link, which would have used existing power lines to carry more electricity from  Quebec into New England. National Grid has cancelled the project for finance reasons.

The southern portion of the proposed Twin State Clean Energy Link, which would have used existing power lines to carry more electricity from Quebec into New England. National Grid has cancelled the project for finance reasons. National Grid—Courtesy

By DAVID BROOKS

Monitor staff

Published: 03-05-2024 11:53 AM

Modified: 03-05-2024 1:28 PM


Another proposal to bring large amounts of electricity from Quebec into New Hampshire, one that would have used existing power lines that cut through a corner of Concord, has died despite hefty support from the federal government.

National Grid said this week it would not go ahead with the Twin States Clean Energy Link, a 211-mile, $2 billion project that was going to carry 1,200 megawatts of electricity, equivalent to the output of Seabrook Station nuclear plant, from Quebec into the U.S. or the other way around as needed. The project was announced last year with support from Citizens Energy.

Twin State Clean Energy was one of three interstate transmission lines to enter into capacity contract negotiations with the Department of Energy last year. The $1.3 billion contract, made through the Bipartisan Infrastructure Law’s transmission facilitation program, saw the government committed to buying a percentage of the total capacity of the lines. This was designed to make it easier to lure other investors but apparently it wasn’t easy enough: National Grid announced Tuesday that it “has determined that the project is not viable at this time.”

The publication Commonwealth Beacon reported that the owners were unable to line up buyers for the rest of the transmission line’s power.

Twin States Link was much less controversial than Northern Pass, a similar-sized project through New Hampshire that was canceled in 2017 after years of debate, because much of its route would have involved relatively small expansion of existing towers and lines. That power corridor runs south from the town of Monroe on the Connecticut River through Salisbury, Webster and Hopkinton, cutting through a small section of northwest Concord, to a substation in Dunbarton. From there it goes south through Goffstown and Bedford. The new project would have ended at a new substation in Londonderry that would let the power feed into the New England grid.

For years the United States has tried to find ways to take advantage of hydropower produced in Canada. Hydro-Quebec, which owns massive hydropower dams in northern Quebec, has agreed to a 25-year contract to sell power for use in New York City via the under-construction Champlain Hudson Power Express, a 1,000-megawatt line that runs down the Hudson River valley.

Another similar power line, called New England Clean Energy Connect, being financed by Massachusetts electric ratepayers, is being built through Maine despite lots of opposition in that state.

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