1-413-589-0141 mmwec@mmwec.org Ludlow, MA

Due to COVID-19, MMWEC staff are working under a hybrid model. Staff continue to be reachable by phone and email. 

The Value of MMWEC - Bringing a competitive edge to Massachusetts municipal utilities

The Massachusetts Municipal Wholesale Electric Company (MMWEC) brings a competitive edge to Massachusetts municipal utilities dedicated to providing their customers with low-cost and reliable electricity. We plan, develop and manage energy resources in an evolving marketplace that requires high levels of innovation and expertise. Our values are old-fashioned, reflecting more than 40 years of public power joint action, but our service is enlightened.

MMWEC's Stony Brook Power Plant in Ludlow, MA

Innovative Battery Storage Project:

The Sterling Municipal Light Department’s innovative battery storage project, the first of its kind in the region, is featured in this video.

2020 MMWEC Annual Report: The Power of Persistence

MMWEC’s 2020 Annual Report showcases the many ways in which MMWEC and its Members persevered during the pandemic while continuing to provide reliable, affordable public power.

Read the report here …

Generation asset development and operation

MMWEC’s largest generation asset is the Stony Brook Energy Center, located on the site of MMWEC’s corporate headquarters in Ludlow, MA. In addition to being a valuable resource for the 25 Massachusetts municipal utilities and six Vermont utilities that are Stony Brook Project Participants, Stony Brook is a unique and valuable asset for ISO New England. Read more about Stony Brook’s value in the Summer 2015 issue of MMWEC’s Joint Action News, found here …

Renewable resources for the future

MMWEC Members and Project Participants have invested in a variety of carbon-free and renewable energy resources, including solar, wind, hydro and battery storage. Members’ power portfolios are nearly 50% carbon-free, and Members continue to seek new opportunities in clean energy procurement. Read more here …

Project 2015A

Learn more about Project 2015A by visiting the Project 2015A website.  

Project 2020A

MMWEC's Proposed 7 MW Solar Project

MMWEC announces plans for new solar project in Ludlow. 

Learn more about Project 2020A by visiting the Project 2020A website.   

Request for Information

Member Participant Website Solution

MMWEC is issuing a Request for Information (RFI) to solicit information from potential web developers for a secure website to communicate with and publish reports and real-time financial and operating data for our customers. Click HERE for more information.


In the News

MMWEC Selected for National Heat Pump Challenge

Click HERE for more information.

In the News

MMWEC Secures Two Energy Efficiency and Development Grants

Click HERE for more information.

In the News

MMWEC Signs Flow Rights Agreement, Power Deal with Hydro-Québec

Click HERE for more information.

In the News

MMWEC 2021 Annual Conference: Advancing Toward Decarbonization

Click HERE for more information.

This Just In

MMWEC Receives Excellence in Public Power Communications Award for 2020 Annual Report

New Report Touts MLP Efforts to Incorporate Carbon-Free Resources

Click HERE for the report from Analysis Group. 


Public Power in Massachusetts

In Depth

Watch Energy & Financial Markets Executive Director Matthew Ide describe MMWEC's Emerging Technologies Initiative in this APPA video

Power Market, Solutions to complex challenges

MMWEC is the only full-service agency equipped to manage municipal utility interests in the increasingly challenging wholesale power market. From wholesale market compliance and bidding loads and resources, to invoice management and capturing market opportunities, MMWEC offers a wide scope of wholesale market solutions. Read more here …

Financial options and risk management

MMWEC provides an expansive range of financial expertise and services to help its Members and Project Participants manage their financial affairs and risk exposures. Services include tax-exempt financing and project/contract oversight for MMWEC’s ownership of approximately 700 megawatts in four New England power plants. Read more here …

Legislative and Regulatory Oversight

MMWEC represents its Members in regulatory and legislative matters, protecting their interests and the public power business model. Staff work directly with various government and regulatory agencies to influence policy and regulations affecting municipal utilities. Read more here …