Y-49 Cable

Y-49 Cable
Long Island Sound Cable
Location
CountryUnited States
StateNew York
FromSprain Brook Substation, Yonkers, New York
ToEast Garden City Substation, Uniondale, New York
Ownership information
OwnerNew York Power Authority
OperatorNew York Power Authority
Construction information
Commissioned1991
Technical information
Total length26 mi (42 km)
Capacity675 MW

The Y-49 Cable (also known as the Long Island Sound Cable or simply Y-49) is an undersea and underground high voltage electric transmission cable between Westchester County and Long Island via the Long Island Sound and Hempstead Harbor in New York, United States. It is owned and operated by the New York Power Authority.

Description

The Y-49 Cable travels between the Sprain Brook Substation in Yonkers, Westchester County (operated by Consolidated Edison) to the East Garden City Substation in Uniondale, Nassau County (operated by NYPA). It travels under the Long Island Sound between Westchester County and Long Island; this undersea section is roughly 8 miles (13 km) in length (the entire line is roughly 26 miles (42 km) long). The average depth of the undersea section is 10–15 feet (3.0–4.6 m) beneath the Long Island Sound's seabed.

As of 2021, Y-49 was one of five undersea transmission lines connecting between Long Island and the Continental United States – and one of four making the connection via the Long Island Sound.

History

The Y-49 Cable began operating in May 1991, and has a capacity of 675 megawatts.

In 2014, the cable was damaged by an anchor from a boat. The incident caused roughly 66,000 gallons of cable insulation fluid to be released into Hempstead Harbor.

As of 2021, there are proposals to upgrade the cable in order to increase its capacity.

See also

References

  1. 1 2 3 4 "Long Island Sound Cable Repair". www.nypa.gov. Retrieved 2021-08-21.
  2. ↑ "Long Island Sound Cable-Y49 Line Relay and Annunciator Upgrades | BidNet". www.bidnet.com. Retrieved 2021-08-21.
  3. ↑ "Long Island Power Line Fails, Conservation Urged". www.ecmweb.com. 2002-05-30. Retrieved 2021-08-21.
  4. 1 2 3 Harrington, Mark (2021-05-21). "More grid upgrade costs for LIPA ratepayers?". Newsday. Archived from the original on 2021-08-21. Retrieved 2021-08-21.
  5. ↑ Harrington, Mark (2021-09-21). "1 failed power cable restored, another may be by mid-October, power authorities say". Newsday. Retrieved 2022-03-23.
  6. ↑ "Y-49 Submarine Cable Location & Burial Depth". W.J. Castle, P.E. & Associates, P.C. 2015-08-18. Retrieved 2021-08-21.
  7. ↑ "New York Power Authority | Vesper Guardian Asset Protection". Retrieved 2021-08-21.
  8. ↑ "Hempstead Harbor Leak Update 2.19". northwordnews. Archived from the original on 2021-08-21. Retrieved 2021-08-21.