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Founded in 2019, BASF Stationary Energy Storage GmbH is a wholly owned subsidiary of BASF SE dedicated to delivering advanced long-duration stationary energy storage solutions. The company exclusively distributes NAS® (sodium–sulfur) batteries—developed in partnership with NGK Insulators—and has deployed over 5 GWh across 250+ global sites. Its flagship products, including the latest NAS Model L24, offer containerized, megawatt-scale storage with six- to eighteen-hour discharge periods, underpinned by enhanced thermal management and an annual degradation rate below 1%. These systems support grid services, renewable integration, microgrids, and green hydrogen projects by providing stable, safe, and efficient energy buffering, supported by a decade-long performance guarantee and comprehensive turnkey services.