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.
Long duration energy storage is an “essential” technology to help accelerate renewable deployment, according to the US Department of Energy’s Dr Imre Gyuk, but will require “appropriate regulatory frameworks”.
