In this work we describe the development of cost and performance projections for utility-scale lithium-ion battery systems, with a focus on 4-hour duration systems. The projections are developed from an analysis of recent publications that include utility-scale storage . . DOE's Energy Storage Grand Challenge supports detailed cost and performance analysis for a variety of energy storage technologies to accelerate their development and deployment The U. Therefore, all parameters are the same for the research and development (R&D) and Markets & Policies Financials cases. The 2024 ATB. . The proposed method is based on actual battery charge and discharge metered data to be collected from BESS systems provided by federal agencies participating in the FEMP's performance assessment initiatives., at least one year) time series (e. Whether you're a factory manager trying to shave peak demand charges or a solar farm operator staring at curtailment losses, understanding storage costs is like knowing the secret recipe to your. . ity-scale BESS in (Ramasamy et al.