Iron-Flow Battery Revolution: ESS Tech’s Stock Soars on Major SRP Deal – Analysts Weigh In
Key Facts at a Glance: – ESS Tech, Inc. is a long-duration energy storage company focused on iron-based flow batteries Essinc. The firm designs, builds and deploys large-scale “iron flow” battery systems for utilities and commercial customers Essinc Marketscreener. Its products use cheap, earth-abundant iron, salt and water in the electrolyte Essinc Marketscreener. ESS touts that its batteries are “safe and sustainable with no risk of thermal runaway” and have a 25+ year lifespan Essinc. As of Oct 9, 2025 close, GWH traded around $1.72/share Stockanalysis Stockanalysis. Wall Street consensus is a Hold rating Stockanalysis, though Roth Capital recently raised its target to $3.50 Tipranks. In recent days ESS announced a 5 MW/50 MWh pilot with Arizona’s Salt River Project under a 10-year contract Essinc, news that sent GWH shares surging ~175% in pre-market trading on Oct 10 Tipranks.
