How do sodium-sulphur battery costs compare to
However, the cost comparison is not fully established in commercial terms, as sodium-sulfur batteries are still in development
An average cost of $ 661/kWh was determined for 2018 sodium-sulfur costs, with a 2025 cost of $ 465/kWh assuming a decrease of 30 percent. Table 19 provides capital cost estimates for sodium-sulfur batteries from the literature. Table 19. Capital cost estimates—sodium-sulfur technology. 5.5.2. Fixed and Variable O&M Costs and Performance Metrics
Sodium-sulfur batteries are mature electrochemical energy storage devices with high-energy densities. According to Aquino et al. (2017), they are primarily provided by a single Japanese-based vendor—NGK Insulators—which, to date, has installed 450 MW of the technology worldwide .
Provided by the Springer Nature SharedIt content-sharing initiative The economic viability of flow battery systems has garnered substantial attention in recent years, but technoeconomic models often overlook the costs associated with electrolyte tanks.
As a result that limited information was available since then, this value is also used as a data point, with a 10 percent increase accounting for the lower E/P ratio (or higher rate of discharge). An average cost of $ 661/kWh was determined for 2018 sodium-sulfur costs, with a 2025 cost of $ 465/kWh assuming a decrease of 30 percent.
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