The Value of MMWEC

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 40 years of public power joint action, but our service is enlightened.

MMWEC's Stony Brook Power Plant is a unique and valuable asset for its municipal utility project participants and ISO New England, which relies upon Stony Brook in several capacities. Read more about Stony Brook's value in the latest issue of MMWEC's Joint Action News, found here.  

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Vital - Resilient - Outstanding

MMWEC's 2016 Annual Report reflects on the importance of the public power business model, which helps to ensure that municipal utilities remain vital, resilient and outstanding participants in an evolving industry. Read the report.


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