energy storage means, in the electricity system, deferring the final use of electricity to a moment later than when it was generated, or the conversion of electrical energy into a form of energy which can be stored, the storing of such energy, and the subsequent reconversion of such energy into electrical energy or use as another energy carrier;
Energy storage system means a system which stores energy and releases it in the same form as was input.
Eligible production company means that term as defined under section 455 of the Michigan business tax act, 2007 PA 36, MCL 208.1455.
Energy Storage Resource means a resource capable of receiving electric energy from the grid and storing it for later injection to the grid that participates in the PJM Energy, Capacity and/or Ancillary Services markets as a Market Participant.
Rechargeable Electrical Energy Storage System (REESS) means the rechargeable energy storage system that provides electric energy for electrical propulsion.