Mystic to Woburn Transmission Project

The Mystic to Woburn Transmission Project, sponsored by Eversource Energy, is a planned underground 115-kv transmission line. The project will travel approximately 8 miles between the existing Mystic and Woburn substations.The project also includes the installation of a new 115-kV series reactor at the Woburn substation to balance power flows between the existing and new line, as well as modifications to the 211-514 Line termination connections at the Mystic substation. The project has an expected completion date of late 2020.

Project Sponsor Line Miles Voltage (kV) From State To State Year in Service
Eversource Energy 8 115 MA MA 2020
Estimated Costs ($M) Voltage Type Project Status Project Group Origin Point Destination Point
138.8 Underground Under Construction Mystic No. 250 Woburn No. 211
Interstate Build Start NERC ISO/RTO Country Project Partners
No 2017 NPCC ISONE US