News & Events
- 2024
- 2023
Notice of Impending Settlement Negotiations
Article VII Application Public Notice
/assets/document-library/Public Notice - Artcile VII Filing(1).pdf
Article VII Pre-Filing abutting landowner notifications
Letters have been mailed to abutting landowners alerting
them that the Project intends to file the Article VII application on or about
February 16, 2024.
/assets/document-library/SHDF Article VII Pre-Filing Abutting landowner letter.pdf
Public Information Session held 12/6/23
December 6, 2023 Public Information Session
PSEG Long Island held a Public Information Session on Wednesday December 6, 2023 at the Rogers Memorial Library in Southampton. The event welcomed community members to meet with the project team and learn about the project. Questions were answered and input was taken from visitors. All materials from the event are available on the website under the Open House tab.
Virtual Public Information Session Materials
About the Project
Project Overview and Benefits
PSEG Long Island, as the agent of LIPA, is proposing a new underground electric transmission project to increase the load capacity and reliability of the electric transmission system on Long Island. Called the Southampton to Deerfield Transmission Project ("SHDF Project" or "Project"), its principal component is the installation of a new underground 138 kilovolt (kV) transmission line between the existing Southampton Substation (located in the Village of Southampton at the intersection of North Sea Road and West Prospect Street) and the existing Deerfield Substation (located in the Hamlet of Watermill on Water Mill Towd Road) primarily along roadways and existing municipal rights-of-way. The SHDF Project is the most cost-effective solution to meet the South Fork's increasing electrical demand and need for reliable electrical service while minimizing disruptions to the community. The Project also is consistent with and furthers the goals of the New York's Climate Leadership and Community Protection Act by supporting the transmission of wind energy on Long Island.
Benefits Include:
The new 138kV electric transmission cable will help ensure continued reliable service to the East End of Long Island. With the South Fork load continually growing, the proposed 138kV supply circuit from the Southampton Substation to the Deerfield Substation will enhance reliability and add redundancy to the existing transmission system.
The new 138kV cable will be located entirely underground except for certain above-ground electrical equipment within the existing substations.
The Project will be located primarily under roads and other public rights-of-way.
Construction of the Project will occur with the least amount of impact to residents and travelers in the area. Throughout construction, access to businesses and residences along the Project route will be maintained.
Permitting & Consultation Process
To construct the Project, PSEG Long Island will need, in addition to other necessary permits:
- The New York State Public Service Commission's issuance of an Article VII Certificate of Environmental Compatibility and Public Need and approval of an Environment Management & Construction Plan (EM&CP).
- Approval from or consultation with the New York Department of Environmental Conservation, New York State DOT, and New York State Office of Parks, Recreation & Historic Preservation.
- Consultation with Suffolk County, Town of Southampton, and Village of Southampton.
Document Library
- Anticipated Project Timeline as of October 2024 - 10/02/2024 - 20 KB
- Primary Route Maps - 10/02/2024 - 11.99 MB
- Notice of Impending Settlement Negotiations - 09/26/2024 -
- Notice of Public Information Forums and Public Statement Hearings, and Soliciting Public Comments - 09/26/2024 -
- 01 - Filing Letter (SHDF) 2-16-24 - 02/16/2024 - 179 KB
- 02 - Table of Contents (SHDF) - 02/16/2024 - 72 KB
- 03 - Master Glossary of Terms (SHDF) - 02/16/2024 - 111 KB
- 04 - Motion for Waivers (SHDF) - 02/16/2024 - 139 KB
- 05 - Application (SHDF) - 02/16/2024 - 158 KB
- 06 - Exhibit 1 (SHDF) General Information Regarding Application - 02/16/2024 - 95 KB
- 07 - Exhibit 2 (SHDF) Location of Facility (w Figs except 2-3) REDACTED - 02/16/2024 - 20.87 MB
- 08 - Exhibit 2 Figure 2-3 (SHDF) Aerial Location of Facility - 02/16/2024 - 21.77 MB
- 09 - Exhibit 3 (SHDF) Alternatives w Figs - 02/16/2024 - 3.80 MB
- 10 - Exhibit 4 (SHDF) Environmental Impacts w Figures 4.2-1 to 4.7-1 - 02/16/2024 - 20.87 MB
- 11 - Exhibit 4 Figures 4.7-2 to 4.8-1 (SHDF) - 02/16/2024 - 18.94 MB
- 12 - Exhibit 5 (SHDF) Design Drawings w Figs - 02/16/2024 - 1.36 MB
- 13 - Exhibit 6 (SHDF) Economic Effects of Proposed Facility - 02/16/2024 - 176 KB
- 14 - Exhibit 7 (SHDF) Local Ordinances w Figs - 02/16/2024 - 15.46 MB
- 15 - Exhibit 8 (SHDF) Other Pending Filings - 02/16/2024 - 141 KB
- 16 - Exhibit 9 (SHDF) Cost of Proposed Facility REDACTED - 02/16/2024 - 129 KB
- 17 - Exhibit E-1 (SHDF) Description of Proposed Transmission Facilities w Figs - 02/16/2024 - 592 KB
- 18 - Exhibit E-2 (SHDF) Other Facilities w Figs REDACTED - 02/16/2024 - 270 KB
- 19 - Exhibit E-3 (SHDF) Underground Construction w Figs - 02/16/2024 - 1.50 MB
- 20 - Exhibit E-4 (SHDF) Engineering Justification w Fig + Att REDACTED - 02/16/2024 - 207 KB
- 21 - Exhibit E-5 (SHDF) Effect on Communications w Fig - 02/16/2024 - 1.32 MB
- 22 - Exhibit E-6 (SHDF) Effect on Transportation w Fig - 02/16/2024 - 3.51 MB
- 23 - Appendix A (SHDF) Pre-filed Direct Testimony - 02/16/2024 - 240 KB
- 24 - Appendix B (SHDF) Agency Correspondence - 02/16/2024 - 3.77 MB
- 25 - Appendix C (SHDF) Public Outreach w Atts - 02/16/2024 - 1.30 MB
- 26 - Appendix D (SHDF) EMF Study - 02/16/2024 -
- 27 - Confidentiality Request Ltr (SHDF) - 02/16/2024 - 283 KB
- 28 - Draft SAPA Notice (SHDF) - 02/16/2024 - 154 KB
- Southampton to Deerfield Transmission Project - Fact Sheet - 10/02/2024 -
- Proyecto de transmission de Southampton a Deerfield - 10/02/2024 - 459 KB
- Article VII Application: Public Notice - 02/07/2024 -
- Article VII Pre-Filing abutting landowner Letter - 12/30/2024 -
- Project Description & Route - 10/02/2024 - 478 KB
- Aerial of Deerfield Substation - 11/15/2023 - 13.48 MB
- Aerial of Southampton Substation - 11/15/2023 - 12.63 MB
- Overview of Southampton to Deerfield Routing Options - 11/15/2023 - 45.04 MB
- Proposed Route Map - 09/10/2024 - 11.99 MB
- Article VII Fact Sheet - 11/15/2023 - 261 KB
- Construction Boards - 12/06/2023 - 1.33 MB
- Project Description - 12/06/2023 - 198 KB
- Routing Methodology - 12/06/2023 - 191 KB
Construction Process
Underground Transmission Construction Process Overview
Construction of the Project will occur primarily along North Sea Road, Willow Street, North Main Street, North Sea Mecox Road, David Whites Lane, Edge of Woods Road, and Water Mill Towd Road in the Town of Southampton, thus minimizing impacts to residents and travelers to the area.
Underground Construction Involves Five Key Phases
Splice Vaults Installation
Underground vaults will be installed at intervals along the route to splice together underground cable.
Conduit Installation
During the installation process, crews will route the new conduits to the new splice vaults.
Restoration
After completing the installation of the vaults, any excavated and disturbed areas will be restored.
Cable Installation
Underground cable arrives on trucks specifically designed for their installation. Crews will pull cable from one vault to another along the project route.
Cable Splicing
Crews will set up a climate-controlled environment at each vault location to splice the underground cables together. This activity is continuous for approximately one week for each vault.