[It's not just Canadian oil and gas that is in flux. HydroQuebec and Vermont have a contract to supply electricity to Vermonters Now that the state has subsidized/encouraged residents to install "heat pumps" that use electricity to heat and cool their homes, and to eliminate backup heating fuel equipment, failure of Canada to deliver this electricity could cause problems.]
A second, smaller interconnection, known as Highgate, is used to transfer clean electricity from Québec’s power grid to Vermont’s, under Hydro-Québec’s long-term energy contract with Vermont utilities.
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Long-term contracts with Vermont
Hydro-Québec is connected to the Vermont grid via an approximately 24-km (15-mile), 120-kV transmission line that runs from Bedford substation in Québec’s Montérégie region to Highgate substation in the northwest corner of Vermont. The interconnection also includes a back-to-back converter station to synchronize Hydro-Québec’s energy deliveries with the New England grid. With a maximum capacity of 225 MW, the interconnection was commissioned in 1985, enabling Hydro-Québec to supply Vermont utilities under long-term agreements.
The first long-term contract between Hydro-Québec and Vermont was signed in 1987. In 2010, the parties signed a second contract for up to 225 MW, under which Hydro-Québec committed to deliver approximately 1.3 TWh of energy each year through 2038—a volume equivalent to about 25% of Vermont’s annual electricity needs.
Designed to stabilize prices, these long-term contracts are part of the reason why Vermont consumers have not experienced the sharp rate increases that have occurred in other parts of New England in recent years.
https://www.hydroquebec.com/clean-energy-provider/markets/new-england.html