$6 billion Canada-New York underground power line enters service
(UI) — A 339-mile transmission line that runs beneath waterways and underground between Canada and New York City has entered commercial operation, completing one of the largest underground utility infrastructure projects in North America, according to Westfair Business Journal.
The $6 billion Champlain Hudson Power Express (CHPE) will deliver hydropower generated in Québec to New York City through a high-voltage direct current transmission system. The route extends from Montréal to Queens, with more than 140 miles installed underwater beneath Lake Champlain and the Hudson River and more than 190 miles buried underground.
LEARN MORE: 339-mile Quebec-to-NYC hydropower line enters last stage of construction
The project is designed to supply up to 1,250 megawatts of electricity, enough to power more than 1 million homes. State officials have said the transmission line could provide roughly 20% of New York City's electricity needs while reducing reliance on fossil fuel generation.
Construction began in 2022 and required extensive installation of buried cable along transportation corridors and beneath waterways. The line enters the Hudson River south of Catskill before emerging in Rockland County, where it continues underground toward its connection point at the Astoria Energy Complex in Queens.
According to Westfair Business Journal, the project is considered the longest underground and underwater transmission line in North America. The line was developed by Transmission Developers Inc. in partnership with Hydro-Québec under a contract with the New York State Energy Research and Development Authority.
Officials say the project will improve electric system reliability while supporting the state's emissions reduction goals.
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