RE sites increasingly utilize energy storage systems to enhance system flexibility, grid stability, and power supply reliability. Whether the primary energy source is solar, wind, geothermal, hydroelectric, or oceanic, EES provides the critical ability to store and manage energy efficiently. 1. Introduction
Principally, this means that a PTC-electing eligible energy production facility (such as a solar facility now eligible to elect to use the PTC after the IRA) may be paired with an energy storage facility without impacting the ability to claim an ITC for the storage facility.
The lack of direct support for energy storage from governments, the non-announcement of confirmed needs for storage through official government sources, and the existence of incomplete and unclear processes in licensing also hurt attracting investors in the field of storage (Ugarte et al.).
The US utility-scale storage sector saw tremendous growth over 2022 and 2023. The volume of energy storage installations in the United States in 2022 totaled 11,976 megawatt hours (MWh)—a figure surpassed in the first three quarters of 2023 when installations hit 13,518 MWh by cumulative volume.
Energy Storage Systems (EES) come out be central technologies that can effectively supplement the gap and serve as storage equipment for saving the surplus energy when it is generated more than what is required and release the same when energy demand is high.
Technology risks: While lithium-ion batteries remain the most widespread technology used in energy storage systems, these systems also use hydrogen, compressed air, and other battery technologies. The storage industry is also exploring new technologies capable of providing longer-duration storage to meet different market needs.