Ashburnham Municipal Light Plant
Belmont Municipal Light Department
Boylston Municipal Light Department
Braintree Electric Light Department
Chester Municipal Electric Light Department
Chicopee Municipal Lighting Plant
Georgetown Municipal Light Department
Groton Electric Light Department
Groveland Municipal Light Department
Holden Municipal Light Department
Holyoke Gas & Electric Department
Ipswich Municipal Light Department
Littleton Electric Light & Water Department
Mansfield Municipal Electric Department
Marblehead Municipal Light Department
Mass Development/Devens Utility
Merrimac Municipal Light Department
Middleborough Gas & Electric Department
Middleton Municipal Light Department
North Attleborough Electric Department
Norwood Municipal Light Department
Paxton Municipal Light Department
Princeton Municipal Light Department
Reading Municipal Light Department
Rowley Municipal Lighting Plant
Russell Municipal Lighting Company
Shrewsbury's Electric Light Plant
South Hadley Electric Light Department
Sterling Municipal Light Department
Taunton Municipal Lighting Plant
Templeton Municipal Lighting Plant
Wakefield Municipal Light Department
Wellesley Municipal Light Plant
West Boylston Municipal Lighting Plant
