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HVDC link begins supplying Canadian hydropower to New York City
9/6/2026
News
The Champlain Hudson Power Express (CHPE) transmission line has begun delivering electricity from Québec to New York City, with the project expected to supply around 20% of the US city’s power demand.
Hydro-Québec is exporting power via the 1,250MW high-voltage direct current (HVDC) link, which runs more than 600km from a substation in Hertel, La Prairie, Québec, to a converter station in Astoria, Queens, US.
Developed in partnership with Transmission Developers, the line runs underground and underwater through Lake Champlain and the Hudson River. It is the longest HVDC cable system in North America and uses HVDC Light technology supplied by Hitachi Energy, a voltage-source converter-based system designed for underground and subsea applications.
Electricity is sourced from Hydro-Québec’s provincial hydroelectric system, including large-scale generating facilities in the province’s northern regions.
Power sales to New York State are expected to generate approximately US$34bn over the life of the contract. The agreement allows flexibility in delivery volumes depending on system conditions, while maintaining priority for Québec’s domestic electricity needs.
The interconnection is designed to operate in both directions over time, enabling electricity imports into Québec and supporting wider renewable energy integration across the region.
For New York, the project is expected to displace a share of thermal generation and reduce greenhouse gas emissions by around 4 million tonnes annually. It also contributes to the state’s target of 70% renewable electricity by 2030 under the Climate Leadership and Community Protection Act.
