Mass. Gen. Laws ch. 21A § 21
The secretary, in conjunction with the secretary of administration and finance, shall design and implement a bidding process for the competitive procurement of electric generation on behalf of any agency, executive office, department, board, commission, bureau, division or authority of the commonwealth procuring electricity from a local distribution company via basic service under section 1B of chapter 164. Any such competitive bid received shall include payment options with rates that remain uniform for a minimum period of 1 year. In lieu of designing and implementing a competitive bidding process as required by this section, the secretary may become a member of programs organized and administered by the Health and Educational Facilities Authority or its subsidiary organization for the purpose of such competitive group purchasing of electricity.
Mass. Gen. Laws ch. 21A, § 21