Battery energy storage systems offer power grids key opportunities for better flexibility, renewable energy integration, and reliable power supply by storing excess renewable energy during low demand times to release during peak demand enabling higher renewable energy. . Battery energy storage systems offer power grids key opportunities for better flexibility, renewable energy integration, and reliable power supply by storing excess renewable energy during low demand times to release during peak demand enabling higher renewable energy. . A battery energy storage system (BESS), battery storage power station, battery energy grid storage (BEGS) or battery grid storage is a type of energy storage technology that uses a group of batteries in the grid to store electrical energy. Battery storage is the fastest responding dispatchable. . We expect 63 gigawatts (GW) of new utility-scale electric-generating capacity to be added to the U. This amount represents an almost 30% increase from 2024 when 48. energy grid, solving the challenges of renewable variability, and scaling up faster than ever before.