The 2020 Cost and Performance Assessment analyzed energy storage systems from 2 to 10 hours. The 2022 Cost and Performance Assessment analyzes storage system at additional 24- and 100-hour durations.
The 2020 benchmarks used the more moderate locations of Phoenix, Arizona (High) and New York City, New York (Low), which explains the widened range of outcomes. When accounting for these changes and other model updates the storage system kit costs actually decreased between 2020 and 2021.
You must login to view this content. Turnkey energy storage system prices in BloombergNEF's 2021 survey range from $188 per kilowatt-hour (kWh) to $529/kWh, with the benchmark price for a four-hour system falling by 54% over the past five years to $238/kWh. The wide price range…
As demonstrated in Figure 13, the kit for a 5-kW/12.5-kWh storage system costs approximately $6,406–$6,662 with a total installed cost of $15,852 (DC-coupled) to $16,715 (AC-coupled).12 Also, Figure 14 (page 24) shows the cost of residential storage systems for different system capacities. Figure 13.
Generic cost breakdown of four energy storage technologies [ 38 ]. Powerhouse: 37; upper reservoir: 19; tunnels: 6; powerhouse excavation: 4; engineering, procurement, and construction and management: 17; and owner’s costs: 17.
The 2020 Cost and Performance Assessment provided installed costs for six energy storage technologies: lithium-ion (Li-ion) batteries, lead-acid batteries, vanadium redox flow batteries, pumped storage hydro, compressed-air energy storage, and hydrogen energy storage.