Massachusetts General Law c. 164, § 134 authorizes municipalities to aggregate the electrical load of customers within their borders to procure competitive supply of electricity. 

What is Municipal Aggregation?

Municipal aggregation is the process by which a municipality purchases electricity in bulk from competitive suppliers on behalf of the residents and businesses within the community. 

In a municipal aggregation:

  1. A municipality will procure competitive electric supply on behalf of participating customers;
  2. A municipality may join with other municipalities to procure competitive supply;
  3. Customer participation is voluntary; customers will be provided an opportunity to opt-out of participating in a municipal aggregation program; and
  4. Distribution companies will continue to provide electric transmission and distribution service to participating customers.


What is the process for a Municipality to create a Municipal Aggregation Program?

  1. A municipality must vote to initiate the municipal aggregation program.
  2. A municipality, often in partnership with a consultant, will prepare a municipal aggregation plan in consultation with the Department of Energy Resources.
  3. A municipality must allow an opportunity for citizen review of the municipal aggregation plan.
  4. The municipality must submit a municipal aggregation plan to the Department of Public Utilities for review and approval


Helpful Information:

  • Department of Energy Resources' Municipal Aggregation Guide  pdf format of DOER Municipal Aggregation Guide
:  A guide for local municipal and county governments that are interested in offering an opportunity for residents to join a community choice aggregation also known as a municipal aggregation.  The guide includes links to other information about buying power in a competitive market.
  • Get the Facts on Municipal Aggregation Webinar wmv format of Get the Facts on Municipal Aggregation Recording
file size 57MB: (April 9, 2014)  A webinar by the Department of Public Utilities and the Department of Energy Resources that provides information about municipal aggregations, including the process for establishing a municipal aggregation, the elements of a municipal aggregation plan, and resources available to municipalities for developing a plan.  See Presentation Slides pdf format of Municipal Aggregation Handouts
of the webinar. 


Additional Resources: