The Hudson Transmission Project was conceived in response to a public solicitation by the New York Power Authority (NYPA) in the spring of 2005 by which NYPA requested proposals for the supply of 500 MW of electric power capacity for its customers in New York City.  Hudson Transmission Partners, LLC (HTP) responded with a proposal to provide a minimum of 500 MW of firm transmission capacity via an underground-and-underwater link to the PJM system.  HTP is comprised of principals of the Neptune Regional Transmission System project, an underwater transmission link between PJM and Long Island, and thus had demonstrated its ability to develop, permit and finance a major transmission line.

HTP’s proposal made use of an earlier transmission line proposal that had received a number of key environmental permits, but whose developer had announced that it would no longer actively pursue development.  HTP determined that because the route of the previous, inactive project had passed careful environmental reviews by state and federal agencies, proposing an essentially similar route would help facilitate permitting for the new project.

After careful evaluation, NYPA announced its selection of the Hudson Project in November, 2006, allowing HTP to begin the permitting process.

NYPA Press Release (PDF 40K)

The Neptune Project

Neptune Map Substantially the same team that is developing the Hudson Transmission Project also developed, permitted, financed, constructed and is now operating the Neptune Regional Transmission System (Neptune RTS). Neptune is a high-voltage DC undersea and underground power cable that links the PJM grid to New York, running approximately 65 miles between Sayreville, New Jersey and New Cassel (North Hempstead) on Long Island, and serving the Long Island Power Authority (LIPA) with enough power for 600,000 homes.

Submarine Cable InstallationNeptune was completed in June 2007, on budget and ahead of schedule, by a consortium of Siemens Power Transmission & Distribution and Prysmian Cables and Systems under contract to Neptune RTS.  Since commencing operation, the system has exceeded expectations in terms of availability and the amount of power brought onto Long Island.  The project includes two converter stations, an undersea cable that extends approximately 50 miles underneath the Raritan River and the Atlantic Ocean, and a land-based underground cable that extends up the shoulder of the Wantagh Parkway on Long Island.  Technology, equipment and installation methodologies used for Neptune will be essentially similar to those used for the Hudson Transmission Project.

Duffy Ave. Converter Station For detailed information about the Neptune Project, go to neptunerts.com.