R.I. Gen. Laws § 39-33-1: Definitions.

As used in this chapter:

(1) “Commission” means the public utilities commission.

(2) “Energy storage system” means any technology capable of converting electrical energy to some form of stored energy for reconversion to electrical energy at a later time.

(3) “Long-duration energy storage system” means energy storage systems that are capable of permanently displacing fossil fuel energy systems designed to store energy or necessary for balancing intermittent renewable energy resources.