ESS Tech, Inc. announced that founding chairman Michael Niggli notified the company on April 10, 2026, of his decision to resign from the board of directors, Audit Committee, and Nominating and ...
About ESS Tech Inc. ESS Tech, Inc. is a long-duration energy storage company, which specializes in iron flow battery technology. It develops long duration iron flow batteries for ...
ESS Tech is complementing its iron flow storage offering, which is engeeneered for the 8–24 hour long-duration segment, with sodium-ion battery products aimed at short and medium-duration applications ...