On average, commercial and industrial energy storage systems cost between $320 and $480 per kilowatt-hour (system-level, installed). Medium projects (500 to 1,000 kWh): Approximately $360 to $440. . This answer depends on several factors, including the size of capacity, battery type, installation requirements, and local market conditions. The paragraphs below outline the major costs and provide a reasonable price range for C&I ESS. Higher power ratings often require more sophisticated infrastructure and larger batteries, which increase costs. When people ask “How much does. .
