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Long-Duration Storage Technologies Gain Traction with Cost Reductions
Oct 08,2025
October 8, 2025, market analysis highlighted accelerating adoption of long-duration energy storage technologies to complement lithium-ion systems. Vanadium flow battery costs dropped to 1.5 yuan/Wh with cycle life exceeding 15,000 times, while a 300MW compressed air storage project in Hebei achieved 70% efficiency with 35% cost reduction . Sodium-ion batteries with 160Wh/kg energy density entered pilot use in cold regions, offering 30% cost advantage over lithium-ion . Inverters tailored for long-duration storage are emerging, featuring extended discharge cycle support and enhanced system compatibility.
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