ESS Tech partners with Alsym Energy for 8.5 GWh battery storage deal

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ESS Partners with Alsym Energy to Deliver 8.5 GWh of Non-Lithium Battery Energy Storage Solutions

April 30, 2026 11:30 PM EDT

Next Generation Sodium-ion Battery Solution Enables ESS Transition to a Full-Service BESS Platform Provider for Expanded Applications

Partnership Enables ESS to Enter the Short and Medium Duration Energy Storage Segment

WILSONVILLE, Ore. & MALDEN, Mass.--(BUSINESS WIRE)-- ESS Tech, Inc. (NYSE: GWH) ("ESS" or the "Company"), a leading manufacturer of sustainable, longduration energy storage systems (LDES), today announced the signing of a letter of intent for a strategic partnership with... More