Leadership in Transmission 

Eversource is improving the reliability of the electric grid with a number of significant construction projects involving high-voltage transmission lines in Connecticut, Massachusetts and New Hampshire. We operate New England’s largest energy delivery system.

Committed to reliability and safety, the company is constructing a number of major projects to maintain and upgrade the transmission system. Our investment through 2018 is projected to be approximately $3.35 billion.

In addition to reliability benefits, these projects will provide greater access to newer, more efficient, and cleaner generating plants. Transmission infrastructure projects also help our communities with tax revenues.


Eversource is partnering with New England’s policy leaders to address infrastructure needs to manage volatile energy markets and the potential for skyrocketing prices.

We have taken the lead in addressing the region’s energy challenges with significant projects, including the Northern Pass transmission project. It will provide New England customers with price stability by importing clean hydropower and creating long-term cost savings.


As New England’s businesses and population grow, and the demand for electricity increases, Eversource is working proactively with state and town officials to ensure that our electric system keeps pace with our customers’ evolving needs.

We have many major transmission initiatives underway in Connecticut, Massachusetts and New Hampshire designed to maintain the reliability of the region’s electric grid.


Power line upgrades benefit all of us by:

  • Providing electric reliability, including
    • Adequacy – The ability to supply the electrical demand and energy requirements of customers at all times
    • Resiliency – The ability to harden the power grid to prevent damage from extreme weather and other disasters
    • Security – The ability of the electric system to withstand sudden disturbances or unanticipated loss of system elements, including attacks from unfriendly sources
  • Supporting communities with economic development and job creation
  • Connecting customers to competitively priced and cleaner sources of power throughout the region
  • Improving the environment as the result of a decrease in air emissions from reduced operation of less-efficient power plants. 

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