Canada‘s Energy Regulator (CER) has approved the construction of the 58-km-long Hertel–New York interconnection line, which is intended to transmit 1.25 GW of hydropower from Canada to the US State of New York. Once completed, the line will link to the 546 km-long Champlain Hudson Power Express (CHPE) interconnection line in the US, which started construction in December 2022. The commissioning of all installations is expected for May 2026.
The hydroelectricity supplied to the city of New York will be generated by Canada’s Hydro-Québec and is expected to reduce the US city’s emissions by about 3.9 MtCO2/year. Earlier in July 2023, the Québec Government published an order authorising the Hertel–New York line. This decision follows a 16-month environmental assessment process and collaboration between Hydro-Québec and the communities affected by the project.
Several other interconnection projects between the Canadian province of Québec and the US northeast are under development. In May 2023, National Grid New Hampshire proposed the development of the Twin State Clean Energy Link, a new 1.2 GW, 340 km power line that would link the US states of New Hampshire and Vermont to Québec. In April 2023, the Superior Court of Maine ruled in favour of the construction of a 336 km, 1.2 GW transmission line (the New England Clean Energy Connect transmission project) linking Québec and the US state of Maine.