Gas Supplier Information in Massachusetts

Access to Eversource electronic bulletin board service is available to marketers with customers in our gas service territory. We will be happy to provide marketers with the necessary dial-up and application software.

For more information regarding electronic bulletin board access, telemetering/nontelemeters, supplier pools, nominations/confirmations, supplier billing, OFO/critical day information, please contact:

Nicole Meurin

For information regarding EDI and customer transactions (enrollments, changes, drops, use history requests), please contact:

Jeanne M. Belliveau 

Regulatory Information

Capacity Entitlements

Gas Allowance Factor

Eversource's Gas Allowance Factor in Massachusetts will change effective November 1, 2021 from 2.07% to 2.36% .

Holiday Schedule

  • New Year's Day - January 1 *
  • Martin Luther King Day - Third Monday of January
  • President's Day - Third Monday in February
  • Memorial Day - Last Monday in May
  • Independence Day - July 4 *
  • Labor Day - First Monday in September
  • Columbus Day - Second Monday in October
  • Veterans' Day - November 11 *
  • Thanksgiving Day - When appointed
  • Christmas - December 25 *

* If this holiday falls on a Sunday the following day will be observed as the holiday.

Other Information

Looking for Eversource Gas of Massachusetts (formerly Columbia Gas)?

See supplier information for the EGMA territory