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 highlighted the potential of its recent partnership with Alsym Energy and the advancement of its sodium-ion technology in its recent financial report.

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.

Peak Energy, ESS Tech Inc, and Unigrid have made recent announcements advancing sodium-ion energy storage technology in the US and Europe.

A group of sodium-ion (Na-ion) battery-focused companies have launched a new industry coalition, the American Battery Leadership Coalition (ABLC).

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.

We look at the potential of flow batteries for LDES and compare the leading providers’ offerings and trajectories.

Iron flow battery company ESS Tech Inc highlighted its recent partnership with Google and the acquisition of VoltStorage GmbH, as profitability remained out of reach in 2025.

In this US news roundup, CC Power signs an agreement with Hydrostor for 400MWh of its Willow Rock LDES project, PowerSecure builds microgrids in New Mexico, and ESS Inc acquires VoltStorage.