CleanTech Strategies (CTS), in partnership with the Flow Battery Industry Group (FBIG) and research institutions, has been selected by the U.S. Department of Energy (DOE) to advance flow battery technologies for long duration energy storage (LDES). The project aims to accelerate the maturation of flow batteries into cost-effective and reliable solutions, meeting the needs of the U.S. grid. CTS will collaborate with experts from FBIG, BCI, and leading research institutions, conducting applied R&D in key areas such as system and component lifetime testing, supply chain development, and technoeconomic analysis.