Construction has started on the 545km (339-mile) underground high-voltage direct current (HVDC) transmission line project that will deliver 1.25GW of hydropower-backed electricity from Quebec, Canada, to New York City.

The $3bn Champlain Hudson Power Express (CHPE) is the largest merchant renewable energy power line project that has been fully permitted and entered construction since President Joe Biden took office in January 2021. Plans call for it to be fully operational in spring 2026.

“Our state is setting yet another example of what climate action looks like,” said New York state Governor Kathy Hochul, calling the project a “monumental step toward protecting our environment and creating family-sustaining, green jobs in both upstate and downstate New York.”