The interactive figure below presents results on the total installed ESS cost ranges by technology, year, power capacity (MW), and duration (hr). Department of Energy's (DOE) Energy Storage Grand Challenge is a comprehensive program that seeks to accelerate. . This report is available at no cost from NREL at www. Cole, Wesley, Vignesh Ramasamy, and Merve Turan. Cost Projections for Utility-Scale Battery Storage: 2025 Update. . ic on behalf of the Clean Energy States Alliance. The purpose of this report is to help states in conducting benefit-cost analysis of energy st the benefits of a program will outweigh its costs. The assessment adds zinc. . The Levelized Cost of Storage (LCOS) metric can be a useful basis for comparing energy storage system costs, meaningfully capturing roundtrip efficiency, upfront and ongoing costs, and lifetime in a single number.