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UCMP Mystic to Everett Line Replacement
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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 will help support the clean energy goals of Massachusetts.
The proposed project is part of a larger program we are conducting throughout our service territory in Massachusetts and Connecticut related to underground cable modernization. This project is an initiative between National Grid and Eversource.
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
When Is The Work Being Done?
- Local and state permitting: 2023-2025
- Proposed start of construction: Spring 2025
- Estimated in-service date: Winter 2027
*Subject to change, pending necessary approvals
About this project
- Route length: 0.7 miles (each line approximately)
- Line voltage: 115 kilovolts (kV)
- Siting review by: Department of Public Utilities (DPU)
Download a printable project fact sheet. (PDF)
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, Haitian Creole and other languages upon request.
Past outreach efforts include:
- Open house at Orsogna Plaza in Everett (June 12)
- Information sessions at Parlin Memorial Library in Everett (April 30 and May 14)
- Information sessions at Charlestown Public Library in Charlestown (August 15 and 28)
Have Questions?
Keeping the lines of communication open is an important part of our work in your community. We welcome input from the community.
For more information about this project, please call the project information hotline at 1-833-836-0302 or email ProjectInfoMA@eversource.com.