How does the cost of vanadium impact the overall expense of flow
Conversely, stable or lower vanadium costs improve the financial attractiveness of flow batteries for long-duration, grid-scale energy storage, where they can outperform lithium
Vanadium flow batteries are one of the most promising large-scale energy storage technologies due to their long cycle life, high recyclability, and safety credentials. However, they have lower energy density compared to ubiquitous lithium-ion batteries, and their uptake is held back by high upfront cost.
Researchers in Italy have estimated the profitability of future vanadium redox flow batteries based on real device and market parameters and found that market evolutions are heading to much more competitive systems, with capital costs down to €260/kWh at a storage duration of 10 hours.
Vanadium flow batteries can last 20 years or more with minimal degradation in performance. This long lifespan results in a lower levelized cost of storage (LCOS) over time, even if the initial investment is higher than other technologies.
The United States has some vanadium flow battery installations, albeit at a smaller scale. One is a microgrid pilot project in California that was completed in January 2022.
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