Form Energy, a secretive, long-duration energy storage startup funded by Bill Gates’ Breakthrough Energy Ventures and other investors is unstealthing — sort of.
The company has revealed that its fundamental energy storage technology is an “aqueous air battery system” that “leverages some of the safest, cheapest, most abundant materials on the planet” in order to commercially deploy a 1 MW/150 MWh long-duration storage solution.
Typical lithium ion battery storage systems provide four hours of storage compared to Form’s remarkable of 150 hours of storage. It’s not exactly the “seasonal” storage that Mateo Jaramillo, CEO of Form Energy, had spoken of in the past — but it’s a few orders of magnitude better than what can be done today.
(Although the term, “aqueous air battery system,” leaves us little more informed about the startup’s technology than when it was stealthed.)
The CEO, an energy storage veteran, has referred to the company’s product as a “bi-directional power plant” and claims that this level of duration allows for “a fundamentally new reliability function to be provided to the grid from storage, one historically only available from thermal generation resources.”
The first project
Form Energy’s first commercial project is a 1 MW, grid-connected storage system capable of delivering its rated power continuously for 150 hours with Minnesota-based utility Great River Energy.
Great River Energy is a not-for-profit wholesale electric power cooperative that provides electricity to 28 member-owner distribution cooperatives, serving 700,000 families, farms and businesses. It’s Minnesota’s second-largest electric utility.
“Commercially viable long-duration storage could increase reliability by ensuring that the power generated by renewable energy is available at all hours to serve our membership. Such storage could be particularly important during extreme weather conditions that last several days. Long-duration storage also provides an excellent hedge against volatile energy prices,” said Great River Energy VP Jon Brekke, in a release.
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