SECTION 1. Chapter 164 of the General Laws is hereby amended by inserting after section 1K the following section:

Section 1L. Beginning on January 1, 2024, no supplier, energy marketer, or energy broker shall execute a new contract for generation services with any individual residential retail customer. This provision shall not apply to, or otherwise affect, any government body that aggregates the load of residential retail customers as part of a municipal aggregation plan pursuant to chapter 164, § 134. Any violation of this provision shall be deemed an unfair and deceptive act pursuant to the provisions of chapter 93A, and the attorney general is hereby authorized to bring an action under section 4 of chapter 93A to enforce this provision and to obtain restitution, civil penalties, injunctive relief, and any other relief awarded pursuant to said chapter 93A.