Deepwater Wind South Fork seeks approval of 138-kV South Fork Export Cable

Deepwater Wind South Fork, LLC (DWSF) on Sept. 14 filed an application with the New York State Public Service Commission for a certificate of environmental compatibility and public need to build, operate, and maintain the 138-kV South Fork Export Cable (SFEC).

The alternating current (AC) electric cable would connect the South Fork Wind Farm (SFWF), located offshore in federal waters on the Outer Continental Shelf (OCS), to the existing mainland electric grid in the Town of East Hampton on Long Island, Suffolk County, N.Y.

The purpose of the project is to transmit electricity generated by the SFWF to the East Hampton substation, the company said, adding that the project, in conjunction with the SFWF, addresses the need identified by the Long Island Power Authority (LIPA) for new sources of power generation that can cost-effectively and reliably supply the South Fork of Suffolk County, Long Island, N.Y., as an alternative to building new transmission facilities.

The SFWF and the project would also help LIPA achieve its renewable energy goals and would enable DWSF to fulfill its contractual commitments to LIPA under a power purchase agreement (PPA) executed in 2017 resulting from LIPA’s technology neutral competitive bidding process.

The company added that the SFEC includes the submarine segment of the cable in New York State territorial waters (SFEC-NYS), the terrestrial underground segment of the cable (SFEC-Onshore), and the new interconnection facility (SFEC-Interconnection Facility), all of which are subject to review and approval under Article VII and are referred to as the project.

Describing the project location, the company said that:

  • The SFEC-NYS is the submarine segment of the export cable buried beneath the seabed within state territorial waters from the boundary of New York State waters – three nautical miles offshore – to a sea-to-shore transition vault located in East Hampton. The SFEC-NYS includes the sea-to-shore transition. The SFEC-NYS is located in the waters south of Wainscott Beach, East Hampton, N.Y. The SFEC-NYS transitions onshore under the beach and beach access located at the southern end of Beach Lane in East Hampton. The SFEC-NYS is about 3.5 miles long from the boundary of New York State territorial waters to the sea-to-shore transition vault located in Beach Lane
  • The SFEC-Onshore is the terrestrial underground segment of the export cable from the sea-to-shore transition vault to the SFEC-Interconnection Facility where the SFEC would interconnect with the LIPA electric transmission and distribution system in East Hampton. The SFEC-Onshore is located in East Hampton, both in the public road right of way (ROW) – including Beach Lane, Wainscott Main Street, Sayre’s Path, Wainscott Stone Road, and Wainscott Northwest Road – and in the Long Island Railroad (LIRR) ROW. The SFEC-Onshore is about 4.1 miles long from the transition vault located in Beach Lane to the SFEC-Interconnection Facility off Cove Hollow Road. The SFEC-Interconnection Facility would be located on the same parcel as the existing East Hampton substation

The company said that the SFWF and SFEC-OCS – the submarine segment of the export cable within federal waters – are subject to review and approval by the Bureau of Ocean Energy Management (BOEM).

DWSF said that it redacted certain confidential information all copies of the application publicly filed and served on the parties identified on the service list. Specifically, the company said, the confidential attachments include a copy of Exhibit 9 of the application that details the SFEC’s capital costs, which DWSF seeks to protect as confidential commercial information; the final system reliability impact study (SRIS), which DWSF seeks to protect as critical energy infrastructure information; Figure 4.6-3 of Exhibit D Archaeological Resources Onshore Report, which discloses the location of sensitive cultural resources; and portions of Appendix S – GIS Data, which contains culturally sensitive information protected from disclosure by New York State statute.

About Corina Rivera-Linares 3061 Articles
Corina Rivera-Linares, chief editor for TransmissionHub, has covered the U.S. power industry for the past 15 years. Before joining TransmissionHub, Corina covered renewable energy and environmental issues, as well as transmission, generation, regulation, legislation and ISO/RTO matters at SNL Financial. She has also covered such topics as health, politics, and education for weekly newspapers and national magazines. She can be reached at clinares@endeavorb2b.com.