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Transmission Rates, Tariffs & Interconnections

Eversource is a Fortune 500 and Standard & Poor's 500 energy company operating in Connecticut, Massachusetts and New Hampshire, operates New England's largest energy delivery system.

Eversource is a recognized industry leader in transmission construction and operation that is committed to sustainability and environmental stewardship.

As electricity demand continues to grow, a strong, reliable transmission system is critical to meeting our customers' needs, the region's economic health, and unlocking access to renewable power generation.

We can assist the transmission customer in:

  • Obtaining services for use of the Eversource system;
  • Developing siting feasibility studies for the location of new generation within the Eversource service territory; and
  • Developing the interconnection requirements for access to Eversource transmission facilities.
billingrepEastern Mass. Eastern Mass. Open Access Transmission Open Access information and postings for Eversource's Eastern Massachusetts transmission infrastructure.
baker Rates Transmission Rates Current Eversource open access transmission service rates in CT, NH and Western MA.
girls-with-doggy Information FERC Order 717 Requirements Information and disclosures pertaining to FERC Order 717 for Eversource's CT, NH and Western MA transmission.
working-at-homeInformation FERC Order 890 And 676-e Requirements Information and disclosures pertaining to FERC Order 890 and 676-E for Eversource's CT, NH and Western MA infrastructure.
commandcenter OASIS OASIS Page Eversource's page on the Open Access Same-time Information System (OASIS) website.