The cost of long-duration, grid-scale energy storage should be reduced 90% within this decade in order to accommodate the “hundreds of gigawatts of clean energy” needed, US Secretary of Energy Jennifer Granholm said yesterday.

NASDAQ-listed zinc-based electrochemical battery storage provider Eos Energy Enterprises has said that a subsidiary of Koch Industries has committed to investing US$100 million into the company.

Iron electrolyte flow battery company ESS Inc has become the latest energy storage industry player to target public listing of its stock, announcing a merger with a special purpose acquisition company (SPAC).

News in brief from around the world in energy storage.

A zinc-air energy storage system (ZESS) offering 10 hours of storage is being trialled in a New York Power Authority (NYPA) project, while a US Department of Defense-funded investigation into flow batteries has moved into a physical validation and evaluation phase in Colorado.

While lithium-ion continues to dominate big project announcements worldwide, three providers of long-duration non-lithium battery technologies have claimed various milestones in commercialisation.