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New England seeks to tap Canadian hydropower

A 300-mile power cable would be buried on land in Maine and then run across the Atlantic Ocean floor to Greater Boston under a proposal to tap Canada’s plentiful hydropower to meet the needs of power-hungry southern New England.

The so-called “Green Line” is one of several proposals across Maine, New Hampshire and Vermont aimed at fulfilling a goal by New England governors to tap up to 3,600 megawatts of renewable energy, lower electricity costs and offset losses as aging power plants go offline. It is expected to cost more than $1 billion.

“Our projects are in response to a really unusual moment in time, the six governors of New England coming together and indicating that they want to support bringing additional electrical infrastructure into New England for the sake of bringing clean energy into New England,” Ed Krapels of Anbaric, one of the Green Line partners, told the Associated Press.

After a bitter winter that saw big spikes in natural gas prices, the six states have come together to ensure a more reliable – and greener – power supply that can help stabilize prices in the region.

“It’s pretty huge,” Chris Recchia, the commissioner of the Vermont Department of Public Service, said of the states working so closely together. “To my knowledge it hasn’t been done before.”

In the next few months, the governors are expected to issue requests for proposals for 1,200 to 3,600 megawatts of transmission capacity that could carry wind and hydroelectric power from the northern reaches and Canada. They are working to ensure the region has a reliable supply of natural gas to avoid future repeats of this winter’s extreme price spikes.

Many of the proposals have been talked about in utility circles for some time, but came into sharper focus after January’s spike in natural gas prices. Those hikes significantly increased power costs for New England electric rate payers, highlighting the need for alternative power sources such as hydro and wind, as well as reliable sources of natural gas.

“The level of urgency has probably increased as a result of the events in January,” said Tom Dunn, the president of VELCO, which manages the transmission grid in Vermont, a potential path to southern New England for Canadian hydropower. “I think the concern is that this stuff takes a long time to permit and build. This situation is going to be with us for a number of years.”

Patrick Woodcock, the governor’s energy chief in Maine, said something has to change because the region’s energy rates are sky-high and there are consequences of relying too heavily on fossil fuels.

“There are a lot of costs to inaction,” he said.

Massachusetts and Connecticut are driving the push to bring clean hydropower from Canada to help the states meet their clean-energy goals. But the other four states, Vermont, New Hampshire, Rhode Island and Maine, agreed through the New England States Committee on Electricity, made up of state utility officials from the six states. They have agreed to share the costs because they would benefit from the overall reduction of energy costs, although the details of how that would be done remain to be worked out.

The Green Line is one of two such proposals in Maine, with a construction team including Maine-based Cianbro, Mass.-based Anbaric Holding LLC of Massachusetts and Powerbridge of Connecticut. Their proposal is unusual in that it proposes a construction hybrid of burying cable underground – possibly along railroad tracks – in Maine and then running cable under the ocean to Greater Boston – a total distance of about 300 miles.

Halifax, Nova Scotia-based Emera is leading a similar proposal, to bring up to 1,100 megawatts of energy across Maine, in a project dubbed the Northeast Energy Link. Other proposals include the Northern Pass through New Hampshire, a proposal to run cables under Vermont’s Lake Champlain and a smaller Anbaric proposal to bring New York power into the New England power grid in northwestern Vermont, also under a portion of Lake Champlain.

Anbaric, experienced in laying underwater power lines between New Jersey and New York, says the use of submarine cables is the most efficient method of transporting energy in terms of siting and permitting. The Green Line proposal is set up to tap both wind energy from northern Maine and hydropower from Quebec, New Brunswick and Labrador.

Legacy Comments5

Ratepayer subsidies are not necessary or fair. Blackstone's transmission affiliate can construct buried transmission lines from Canada to the New England grid using its own money and without putting the cost on ratepayers. Northern Pass either can't or doesn't want to, so they lose. Don't let Northern Pass maintain the 12.56% profit rate for its investors by crying poverty and making ratepayers pay to bury the lines. The market chooses winners here, and it's Blackstone, not Northern Pass.

Yet another in a long list of proposals for large scale underground power transmission in our region that didn't get the memo from no. pass that it was far too costly. Either all these other companies are wrong or no. pass is ------- on our leg and telling us it's raining. It should be clear to everyone by now that the future and the present of modern, reliable, power transmission lies underground - in spite of any self serving message to the contrary from those looking to cash in on NH's lack of regulation in this area. Tell your Reps. and Senators that since we in NH are just as good as everyone else in New England - we deserve underground, too. It would be a travesty to allow no. pass to trash our state with their damaging and vulnerable overhead proposal that shows such complete disregard for us when the facts on the ground prove it is clearly unnecessary.

They can bury these power lines in Maine, but Northern Pass says it would be "cost prohibitive" to do so in NH?

“To my knowledge it hasn’t been done before.”

“To my knowledge it hasn’t been done before.” ...again - PRIVATE companies do amazing things when Govt gets out of the way

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