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TLDR: first deployment of Form Energy's "aqueous air" grid battery, 1 megawatt, 150 megawatt hour, no tech details.

MIT professor founder, backed by Bill Gates amongst others.

According to MIT tech review [0] , their main line of research is an "air-breathing aqueous sulfur flow battery".

Ya, it's basically a press release. Does the solution exist or are they going to be developing it as they go? What's it look like?

Exactly, is it chemistry based (iron oxide) or pumping water?

According to their website[1], this is the extent of what they have to say about their technology:

The Technology

Form Energy has identified and is developing a novel approach that is low-cost, safe, and scalable. This battery would allow for a 100% renewable, carbon free grid.

Super useful

[1]" https://formenergy.com/about/

It looks like an iron-based chemistry: http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=....

Sorry, you have to append a period to a URL to make it work. HN does not believe in URLs that end in periods, apparently.

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