As of most recent estimates, the cost of a BESS by MW is between $200,000 and $420,000, varying by location, system size, and market conditions. This translates to around $150 - $420 per kWh, though in some markets, prices have dropped as low as $120 - $140 per kWh. Key. 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. 5 million, depending on three key factors: Battery Chemistry: Lithium-ion dominates, but newcomers like lithium-sulfur promise 3x the storage at lower costs. The consultancy's ESS Pricing Forecast Report for Q2 2024 said that BESS suppliers are moving to +300Ah cells quicker than. 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. Capex of $125/kWh means a levelised cost of storage of $65/MWh 3. With a $65/MWh LCOS, shifting half of daily solar generation overnight adds just $33/MWh to the cost of solar This report provides the latest, real-world evidence on.