The Hudson Transmission Project is a 660 MW electric transmission link between New York City and the PJM Interconnection.  While its main purpose is to provide a new source of electric power for 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 back-to-back high-voltage direct current (HVDC) technology and an AC tie across the Hudson River.  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 began construction in May 2011 and is scheduled for completion in 2013. Outside of the main benefits of grid reliability and infrastructure reinforcement, Project construction will create 200 jobs, clean up a former industrial site, and also increase property tax revenues for the Borough of Ridgefield, New Jersey.