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Open Access Transmission Information

Information pertaining to FERC Order 890 and 676-E

Eversource owns and maintains electrical transmission facilities (local transmission) available for use to FERC jurisdictional wholesale customers (non-retail).

Eversource also has use rights to the transmission capacity of the Phase I/II HVDC Transmission Facilities, a transmission interconnection that connects the Hydro-Québec TransÉnergie control area to the New England control area. Transmission service is available to eligible customers over these transmission facilities under separate Open Access Transmission Tariffs, as noted below.

An eligible customer interested in obtaining Point-to-Point or Network Service should review the Business Practice document for the applicable service to determine what is required to apply for service.

For more information, visit the North American Energy Standards Board website.

Documents are applicable to all of Eversource’s service area unless otherwise noted.


Performance Metrics (PDFs)

Connecticut, Western Massachusetts and New Hampshire

Eastern Massachusetts

    Business Practices, Waivers and Exemptions (PDFs)

    Schedule 20A

    Schedule 21

    Available Transfer Capability

    More information is available in the ISO New England Available Transfer Capability Implementation Document.

    ATC Methodology Contact

    Schedule 20A

    Schedule 21 (PDFs)

      Additional FERC Order 890 Related Items

      Schedule 20A

      Schedule 21 (PDFs)

      CEII Contact

      Other Information and Documents (PDFs)

      Northern Pass Transmission (PDFs)