Iron flow batteries with 25 year life and 4 to 10 hour duration

Iron flow batteries provide a long duration energy storage solution suited Australia's resource availability and harsh climate. ESS technology uses the abundant low-cost elements of iron, salt, and water to deliver environmentally safe battery solutions capable of providing up to 12 hours of flexible utility-scale energy storage. From sundown to sunup! “ESS iron flow technology provides cost-effective long-duration energy storage and is ideal for applications that require from 4–12 hours of flexible energy capacity. ESS systems provide resilient, sustainable energy storage well-suited for multiple use cases including utility-scale renewable energy installations, remote solar + storage microgrids, grid load-shifting and peak shaving, and other ancillary grid services. ESS technology is safe, non-toxic and has a 25-year lifespan without capacity fade. Demand for long-duration energy storage systems is expected to grow rapidly in Australia; New South Wales announced the procurement of 2 GW of LDES in its recent Electricity Infrastructure Roadmap.” Stuart Parry, Managing Director of ESI, says: “Safe and non-toxic ESS iron flow batteries are perfect in Australia’s harsh environment and the ability to locally source electrolyte provides insurance against supply chain risks and price escalation. The transition to clean energy requires new long-duration storage solutions and we look forward to working with ESS to meet the needs of an increasingly renewable energy grid.” read the whole story here; https://cleantechnica.com/2022/10/27/iron-flow-batteries-to-be-built-in-queensland/