The role of energy storage as an effective technique for supporting energy supply is impressive because energy storage systems can be directly connected to the grid as stand-alone solutions to help balance fluctuating power supply and demand. . 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. 6 GW of capacity was installed, the largest. . On December 1, 2024, the Energy Storage Analytics team at Sandia National Laboratories announced the release of QuESt Planning, an open-source Python-based capacity expansion planning tool focused on energy storage systems. QuESt Planning is a long-term power system capacity expansion planning. . Large-scale energy storage systems are the backbone of our evolving power grid – sophisticated technologies that capture excess electricity when it's abundant and deliver it precisely when needed. Key Learning 1: Storage is poised for rapid growth. Key Learning 2: Recent storage cost declines are projected to continue, with. . With increasing reliance on variable renewable energy resources, energy storage is likely to play a critical accompanying role to help balance generation and consumption patterns. This comprehensive paper, based on political, economic. .