Why should people take ESS Inc and its pivot to sodium-ion BESS seriously, having failed to deliver on its iron flow battery promises since going public in 2021? We catch up with new CEO Drew Buckley about how he hopes to turn the ship around.

ESS Tech Inc is deploying sodium-ion BESS in the US with Juniper Energy, while CATL deploys its sodium-ion technology in Eastern Europe with Solarpro.

Two battery energy storage system (BESS) companies, Eos Energy and ESS Tech Inc, are betting big on the US adoption of long-duration energy storage (LDES) in Q1 2026 financial reports.

Iron flow battery company ESS Tech Inc has signed a letter of intent for a strategic partnership with US sodium-ion (Na-ion) battery startup Alsym Energy.

Eos, ESS Tech Inc and Energy Vault, the three big-name non-lithium energy storage firms that listed via SPAC deals, saw weak third quarter results.

Iron flow battery company ESS Inc will provide Nigeria-based IPP Sapele Power 1MW/8MWh of its systems, it announced while also revealing its first quarter financials.

A trio of announcements in the long-duration energy storage (LDES) sector, from RedoxBlox, Eos Energy Enterprises and ESS Inc.

The four most high-profile energy storage system (ESS) companies that listed via SPAC mergers – Eos, Energy Vault, ESS Inc and Stem – have seen their share prices fall by an average of 80% since going public.

Iron-saltwater flow battery company ESS Inc looks set to deploy by far its largest project to-date, a 50MW/500MWh system at a renewables hub from German energy firm LEAG, with potential for more.

ESS Inc. has received UL1973 certification for the battery modules in its utility and industrial flow battery energy storage systems.