Project Overview

The Northern Pass is a $1.4 billion transmission infrastructure project that will bring 1,200 megawatts (MW) of clean, low-cost energy from Hydro-Québec’s world-class hydroelectric plants in Canada to New Hampshire and New England. This is enough renewable electricity to power one million homes.

At the heart of the project is the construction of a new direct current (DC) transmission line from the Canadian border to Franklin, NH, where a converter terminal will be built to convert the electricity from direct current to alternating current (AC). From there, a new AC transmission line will carry the energy to an existing substation in Deerfield, NH—and into New England’s power grid.

The NPT will be constructed utilizing 147 miles of existing rights-of-way, 32.25 miles of new rights-of-way, and two underground sections which are 7.5 miles and 2,300 feet respectively.

By providing access to this new source of reliable, renewable energy, the Northern Pass will help meet the region’s increasing demand for power while also substantially decreasing carbon dioxide emissions. In addition, the Northern Pass is expected to bring many other benefits specifically to New Hampshire. A few of these include:

  • 1,200 new jobs over the project's construction period
  • $20-35 million annual energy cost savings for New Hampshire consumers
  • An estimated $1.1 billion over the life of the project (40 years) in new local, state, and county tax revenues
  • The $1.4 billion project cost will not be passed on to customers