daily · energy-economics

New York approves $3.26 billion Propel NY transmission line

New York regulators approved a 90-mile, $3.26 billion transmission line to move more power, including offshore wind, between Long Island and the rest of the state. It is set to finish in 2030.

By Greener Numbers Editorial Team · Published September 24, 2026 · Updated 9/24/2026

The New York Public Service Commission on Thursday, Sept. 17, approved Propel NY Energy, a 90-mile transmission line meant to move more power, including from offshore wind, between Long Island and the rest of the state. The $3.26 billion project is being developed by New York Transco and the New York Power Authority, and the aim is to finish it in 2030.

Opponents argued the line was no longer needed after several offshore wind projects were canceled. Regulators disagreed. They pointed out that the state's renewable energy goals have not changed and that New York has more than 1,800 MW of offshore wind either operating or under construction. Earlier this year the state changed some greenhouse gas targets in its Climate Leadership and Community Protection Act, but it kept the goal of 9 GW of offshore wind by 2035.

"While it is true that the pace of offshore wind energy generation development has slowed ... contrary to the arguments made by some parties, the need for the project continues to exist," the PSC said in its order.

The New York ISO picked the project in 2023 to improve downstate reliability. It adds new underground lines at 138 kV and 345 kV, connecting to nine existing or new substations in Suffolk, Nassau, Queens, Bronx and Westchester counties.

Construction plans still need PSC approval before work can start, and the commission is taking comments on them until Oct. 1. The developers say some work could begin later this year in limited areas, with wider construction expected in mid-2027.

Official source: Utility Dive ↗