Section 11F of Chapter 25A of the General Laws, as appearing in the 2018 Official Edition, is hereby amended by adding at the end of subsection (e) the following:-

Provided however, every energy retail supplier shall provide Massachusetts end-use customers a minimum requirement of 3.8 per cent of kilowatt-hour sales of energy attributes from Class II non-waste-to-energy generation, as described in subsection (d), for supply contracts starting, or renewed, on and after January 1, 2023.  Beginning in 2023, the department shall annually conduct an analysis and reset the energy retail supplier’s minimum requirement of Class II non-waste-to-energy generation attributes for new or renewed retail supplier contracts in the calendar year following each annual review, to ensure and promote the continued operation of existing energy generating resources that meet the requirements of said subsection (d), but at no time shall the minimum percentage requirement for energy retail suppliers be set lower than 3.8 per cent.