Hertel–New York interconnection line
The Hertel–New York interconnection line project aims to supply clean, renewable energy to New York City. In Québec, the project involves the construction of a line that will span 57.7 km (56.1 km underground and 1.6 km underwater). This 400-kV direct current line will connect Hertel substation in La Prairie to an interconnection point in the Rivière Richelieu at the Canada–United States border.
The project also includes installing a converter at Hertel substation. It will convert alternating current to direct current to supply the new interconnection.
The new line will connect to the line planned under the Champlain Hudson Power Express (CHPE) project, overseen by Transmission Developers Inc. (TDI) in the U.S. The CHPE project involves building an underground and underwater DC line between the Canada–U.S. border and New York City, a distance of roughly 545 km. In addition to receiving all required authorizations in the U.S., this project has been selected by the authorities of New York State to deliver hydropower to the heart of New York City.
Lighting New York City with Our Clean and Renewable Energy
Prevents the emission of approximately 3.9 million tonnes of greenhouse gases annually
line about 60-km
The project in videos
Sébastien Bélanger, project manager, explains the project justification.
The environment: At the heart of everything we do!
Valérie Groison, environmental project manager, explains the environmental approach.
Understanding the work
Michel Laboissière, transmission line project engineer, explains the underground line work.
Understanding electric and magnetic fields and stray voltage
Jean-Pierre Tardif, science communications advisor, explains the electric and magnetic fields and the stray voltage.