The Hudson Transmission Project is a proposed 660 MW electric transmission link between New York City and PJM Interconnection.  While its main purpose is to provide a new source of electric power for the New York City customers of the New York Power Authority (NYPA), implementation of the Project will also include very significant upgrades and reinforcements to the transmission system in New Jersey.

The Hudson transmission line will be entirely underground and underwater, using high voltage direct current (HVDC) technology.  The route begins in Ridgefield, New Jersey, the site of a new converter station, where it will interconnect with the PJM system at a PSE&G substation.  The line will follow existing railroad rights-of-way, through an inactive railroad tunnel to the edge of the Hudson River in Edgewater.  It will then be buried beneath the Hudson for approximately three miles to a landfall point near Pier 92 in Manhattan.  The final half-mile of cable will be routed beneath the West Side Highway and ultimately into the ConEd W. 49th Street Substation.

The Project is being developed by PowerBridge LLC of Fairfield, Connecticut, through a project company, Hudson Transmission Partners, LLC (HTP). PowerBridge principals were responsible for the successful development, construction, and operation of the Neptune Regional Transmission System, a 65-mile undersea transmission link between PJM and Long Island.