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Why Are We Doing This Project?

To meet demand, deliver reliable energy and provide superior service to our customers, we are proposing to replace existing underground 115-kilovolt (kV) high-pressure fluid filled (HPFF) electric transmission lines with new cross-linked polyethylene 115-kv (XLPE) technology. Replacing the existing HPFF lines with XLPE cable technology will modernize cable infrastructure and increase long-term system reliability.

These improvements align with the Commonwealth's goal to achieve net zero carbon emission standards by 2050.  

Where Is This Work Being Done?

The proposed replacement lines would follow the same route as the existing lines whenever feasible. Transmission line replacement will require roadwork along Horizon Way, Broadway Street in Everett and Alford Street in Boston until reaching the Mystic Substation.

Minor upgrades to the Eversource Mystic Substation will be required to accommodate the XLPE cables. Once the new XLPE lines are installed, the existing HPFF lines will be retired.

Replacement work will not interrupt normal electric service to local customers. 

*Click map to enlarge

About this project

• Route length: 0.7 miles (each line approximately)
• Line voltage: 115 kilovolts (kV)
• Siting review by: Massachusetts Energy Facilities Siting Board (EFSB)/Department of Public Utilities (DPU)

Siting Review

This project requires a notice to be filed with EFSB/DPU. We anticipate the submission of detailed project information to the EFSB/DPU in the summer of 2024. 

Community Outreach

We are committed to engaging city officials, residents, businesses, community groups and other stakeholders about project activities through meaningful engagement.

Our team strives to incorporate local feedback into the project’s development wherever feasible. Team members will remain engaged with the community throughout phases of the project.

Information is available in Spanish, Portuguese and other languages upon request.