In this Review, we describe BESTs being developed for grid-scale energy storage, including high-energy, aqueous, redox flow, high-temperature and gas batteries. Battery technologies support various power system services, including providing grid support services and preventing.
The 2026 edition introduces the most significant changes yet: mandatory Hazard Mitigation Analysis for virtually all installations, explicit Large-Scale Fire Testing requirements, and a clear message that explosion prevention can no longer rely on venting alone.