Hertel–New York interconnection line

Project description

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.

Discover more!

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
underground

Addition of a converter at Hertel substation

Allows for the export of 1,250 MW of power

The project in videos

Project overview

Sébastien Bélanger, project manager, explains the project justification.

Duration: 1 minutes 27 seconds

The environment: At the heart of everything we do!

Valérie Groison, environmental project manager, explains the environmental approach.

Duration: 2 minutes 56 seconds

Understanding the work

Michel Laboissière, transmission line project engineer, explains the underground line work.

Duration: 2 minutes 53 seconds

Understanding electric and magnetic fields and stray voltage

Jean-Pierre Tardif, science communications advisor, explains the electric and magnetic fields and the stray voltage.

Duration: 3 minutes 02 seconds