Neptune Cable

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Neptune Cable
CountryUnited States
StateNew Jersey and New York
FromSayreville, New Jersey 40°28′25.38″N 74°21′11.1″W / 40.4737167°N 74.353083°W / 40.4737167; -74.353083 (Neptune - Sayreville Static Inverter Plant)
ToLevittown, New York 40°45′38″N 73°33′4″W / 40.76056°N 73.55111°W / 40.76056; -73.55111 (Neptune - Hicksville Static Inverter Plant)
Ownership information
OperatorPowerBridge, LLC
Technical information
TypeSubmarine power cable
Type of currentHVDC
Power rating660 MW
DC voltage500 kV

The Neptune Cable is a 500kV and 660 MW[1] high-voltage direct current submarine power cable between Sayreville, New Jersey and Levittown, New York on Long Island.[2] It carries 22 percent of Long Island's electricity.[3] It was developed by Anbaric Development Partners.

The cable is managed by Fairfield, Connecticut-based PowerBridge, LLC.[1]


The power plant was developed as part of a 2003 request for proposal from the Long Island Power Authority for new generating plants on Long Island[4] that was a response to the Northeast blackout of 2003 and delays by Connecticut in activating the Cross Sound Cable,[5] and due to continued high peak demand over multiple years.[6][7] This solicitation also resulted in construction of the Caithness Long Island Energy Center; Bethpage Energy Center; and Pinelawn Power Plant in West Babylon, New York.[7]

The cable was constructed following the Long Island Power Authority's determination that importing electricity would make more sense economically than constructing new power generating stations on Long Island.[citation needed]

See also[edit]


  1. ^ a b "Home". Neptune Regional Transmission System. Retrieved 2021-09-24.
  2. ^ "What is Neptune RTS?". Neptune RTS. Archived from the original on 2008-05-26. Retrieved 2008-12-19.
  3. ^ Wald, Matthew L. (March 16, 2010). "Underwater Cable an Alternative to Electrical Towers". New York Times. Retrieved 2010-03-17.
  4. ^ "Project Facts". Caithness Long Island. Retrieved 2022-04-15.
  5. ^ Solnik, Claude (2003-09-05). "LIPA eyes on-Island generation". Long Island Business News. Retrieved 2022-04-16.
  6. ^ "Long Island Power Authority Bethpage 3 Energy Center environmental assessment" (PDF). 2004-05-26. pp. 1-1, 1-3, 2-1. Retrieved 2022-10-16.
  7. ^ a b "$200M LIPA proposal: powerhouse of energy". Newsday. 2004-05-27. pp. 4, 49. Retrieved 2022-10-16.

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