Northern Pass Transmission Project

The Northern Pass transmission project involves 239 miles of 300-kV DC and 40 miles of 345-kV AC transmission lines and would bring renewable energy from Quebec into New Hampshire to satisfy the need for additional renewable energy in New England. In August 2015, it was announced that 60 miles of the total route will be placed underground. Of the total 239 miles of the project, 47 miles are in Quebec and being developed by Hydro-Quebec. The remainder, 192 miles, will be in New Hampshire and are being developed by Eversource.

Project Sponsor Line Miles Voltage (kV) From State To State Year in Service
Northern Pass Transmission LLC 239 300 QC NH 2020
Estimated Costs ($M) Voltage Type Project Status Project Group Origin Point Destination Point
1600 Planned Canadian Border Deerfield
Interstate Build Start NERC ISO/RTO Country Project Partners
2018 NPCC ISONE CA Hydro-Quebec, Eversource Energy