hingham electrical logo-04

The Hingham Municipal Lighting Plant (“HMLP”) is proposing to construct and operate a new transmission line and substation in Hingham to address critical reliability needs and support the Town’s climate change initiatives.

Hingham Electrical Infrastructure Reliability Project

The Hingham Municipal Light Plant (“HMLP”) is proposing to construct and operate a new transmission line and substation in Hingham to address critical reliability needs.

Here’s why:

  • The new substation and transmission line are vital to ensuring a reliable, low-cost electricity supply that supports the Town’s public safety, economic vitality and environmental goals.
  • Currently, Hingham is served by two above-ground transmission lines. These two lines travel the same route and share a common set of supports and poles. The fact that both lines share a common route and a single set of poles leaves the Town vulnerable to extended outages should an event (natural or otherwise) occur. Because of this arrangement, a downed pole could affect both lines simultaneously.
  • The new line and substation will provide additional capacity to support the electrification goals set out in the Hingham Climate Action Plan.


Project Location

  • The proposed transmission line would connect to HMLP’s distribution system at a proposed new substation on a parcel at Town’s transfer station site (see map below).
  • This Town-owned parcel located near the exit to the DPW transfer station on the northeast corner of that site was chosen upon suggestion from the Hingham Select Board and after HMLP’s comprehensive analysis of Town-owned properties with respect to reliability, environmental and cost considerations.
  • The proposed transmission line would tap into the Massachusetts grid at a new tap station in Weymouth that will be constructed and operated by Eversource. The proposed line then would run underground along public rights of way from Weymouth to Hingham.
Project location

The Process

HMLP has worked closely with residents, businesses and public officials in Hingham and Weymouth to obtain valuable feedback regarding its proposed transmission line, the proposed Hingham substation and Eversource’s proposed Weymouth tap station.

  • HMLP held virtual Community Meetings in Hingham regarding the proposed project on October 18, 2021 and November 18, 2021.
  • On April 30, 2022, Hingham Town Meeting approved a warrant article authorizing the Board of Selectmen to transfer custody and control of a parcel of land at the Town’s transfer station to HMLP for purposes of constructing and operating a new substation.
  • In 2022and 2024, HMLP held a number of Community Open Houses in Hingham and Weymouth to share information about the project and to invite public feedback. For a full list of community meetings, see the [link to] Outreach page.
  • On April 12, 2024, HMLP provided the Hingham Planning Board and Zoning Board with detailed information regarding its proposed substation at the Town’s transfer station site. As part of its informal review of the substation, the Planning Board and Zoning Board will hold a public meeting on June 4, 2024.
  • HMLP will continue to work with Hingham and Weymouth residents, businesses and officials through all phases of project development and permitting.
  • Additionally, the project also will require approval or certification from:
    • Massachusetts Energy Facilities Siting Board, an independent state board that reviews proposed energy facilities, will review HMLP’s Petition to Construct and HMLP’s Joint Petition (with Eversource) for an exemption from zoning requirements in Hingham and Weymouth.
    • Hingham and Weymouth Conservation Commissions
    • Other agencies, as necessary