The MMWEC power supply includes MMWEC-owned capacity in five major New England power plants:
· Stony Brook Intermediate Unit
· Stony Brook Peaking Unit
· Seabrook Station
· Millstone Unit No. 3
· Wyman Unit No. 4

The MMWEC-owned capacity and energy from these plants is resold at MMWEC’s cost to 28 Massachusetts municipal utilities, the Pascoag (Rhode Island) Utility District and six utilities in Vermont. MMWEC also purchases power in bulk through bilateral contracts with power suppliers and resells the power at cost to participating utilities.

Millstone Unit No. 3 is a 1,150-megawatt nuclear generating plant located in Waterford, Connecticut. Millstone Unit No. 3, which began operation in 1986, is the newest and largest of Millstone Station’s three nuclear units, one of which is retired from service. The principal owner and operator of Millstone Station is Dominion Nuclear Connecticut, Inc., a subsidiary of Virginia-based Dominion Resources, Inc. Dominion Nuclear Connecticut owns 93.47% of Millstone Unit NO. 3. The other owners are MMWEC (4.8%) and Central Vermont Public Service Corporation (1.73%).

The Nuclear Regulatory Commission on Nov. 28, 2005 approved Dominion Nuclear Connecticut’s request for a 20-year operating license extension for Millstone’s Unit No. 3 reactor. The license now expires in Nov. 2045.

MMWEC’s Millstone Unit No. 3 Project Participants include 27 Massachusetts municipal utilities based in the communities of Ashburnham, Boylston, Danvers, Georgetown, Groton, Hingham, Holden, Holyoke, Hudson, Hull, Ipswich, Littleton, Mansfield, Marblehead, Middleborough, Middleton, North Attleborough, Paxton, Peabody, Reading, Shrewsbury, South Hadley, Sterling, Templeton, Wakefield, West Boylston and Westfield.