MMWEC is a body politic and corporate and a political subdivision of the Commonwealth created by the Massachusetts Legislature in 1975 to serve the consumer-owned, MLPs of Massachusetts. MMWEC is a voluntary membership organization whose Members are Massachusetts cities and towns having MLPs. Of the 40 MLPs in Massachusetts, 20 are Members of MMWEC. MMWEC provides services to all 40. Through membership in MMWEC, in addition to providing other Member services, Member systems are able to leverage their combined buying power to negotiate cost-effective energy facility projects, helping to control costs in providing a reliable supply of power for all of our customers.