Solar Photovoltaic System Cost Benchmarks
The U.S. Department of Energy''s solar office and its national laboratory partners analyze cost data for U.S. solar photovoltaic systems to develop cost benchmarks to measure progress towards goals and
The benchmarks in this report are bottom-up cost estimates of all major inputs to PV and energy storage system installations. Bottom-up costs are based on national averages and do not necessarily represent typical costs in all local markets.
Additional storage technologies will be added as representative cost and performance metrics are verified. The interactive figure below presents results on the total installed ESS cost ranges by technology, year, power capacity (MW), and duration (hr).
When supplied with an energy storage system (ESS), that ESS is comprised of 80 pad-mounted lithium-ion battery cabinets, each with an energy storage capacity of 3 MWh for a total of 240 MWh of storage. The ESS cabinet includes a bidirectional inverter rated at 750 kW ac (four-hour discharge rate) for a total of 60 MW ac.
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.
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