Plymouth and Wareham Substation Expansions

EFSB 25-02: NSTAR Electric Company d/b/a Eversource Energy (“Eversource” or the “Company”) is filing herewith a petition with the Energy Facilities Siting Board (the “Siting Board”) pursuant to G.L. c. 40A, § 3 seeking individual and comprehensive zoning exemptions from the operation of the Town of Plymouth Zoning Bylaw and the Zoning By-Law of the Town of Wareham in connection with the expansion of Eversource’s West Pond Substation located at 0 Federal Furnace Road in Plymouth and Tremont Substation located at 4 North Carver Road Extension in Wareham (together, “Substation Expansions”).

Project Information

In February 2025, NSTAR Electric Company d/b/a Eversource Energy (“Eversource” or the “Company”) filed with the Energy Facilities Siting Board (“Siting Board”) a petition pursuant to G.L. c. 40A, § 3 seeking individual and comprehensive zoning exemptions from the operation of the Town of Plymouth Zoning Bylaw and the Zoning By-Law of the Town of Wareham (the “Zoning Petition”). The zoning exemptions are requested in connection with the expansion of Eversource’s West Pond Substation located at 0 Federal Furnace Road in Plymouth and Tremont Substation located at 4 North Carver Road Extension in Wareham (together, “the Parcels”). The Company states that the zoning exemptions are needed for the Company to maintain a reliable electric power system and to enable distributed generation facilities to safely interconnect and operate.

Project Filing with EFSB

• Company's Petition
  • Resident Outreach Information
  • Information on Project Need
  • Information on Project Alternatives
  • Construction Description
  • Description of West Pond Station Environmental Impacts
    • Potential Air Impacts
  • Description of Tremont Substation Environmental Impacts
    • Potential Air Impacts
  • Description of Cost Impact of Project
  • Environmental Justice Considerations
  • West Pond Substation Layout (Environmental Constraints)
  • Tremont Substation Layout (Environmental Constraints)

All documents related filed in relation to a proceeding are posted to the DPU Fileroom.  The Fileroom page for a proceeding represents the official record for that proceeding.  The public can access the Fileroom page for this proceeding at the following link:                      

EFSB 25-02 in the DPU Fileroom

Useful Information

EFSB and DPU Siting Process

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For more detailed information on the Siting process:  Energy Facilities Siting Board Handbook (updated 2019) | Guía para fijar la ubicación de instalaciones energéticas (2019)

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Contact

For further information about the proceeding, please contact the Hearing Officer at the address or telephone number below:

Donna Sharkey, Hearing Officer
Massachusetts Department of Public Utilities
One South Station Boston, MA 02110
617-305-3625
[e-mail]