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Someone • today at 11:37 AM • 5 replies • view on HN

For comparison, US grid capacity is about 1250 GW, average usage 500 GW.

So, this adds over two minutes of average usage.

https://seia.org/research-resources/energy-storage-market-ou... says total storage now is about 200 GWh, or about 25 minutes of average demand.


Replies

nomercy400 • today at 11:45 AM

So if ALL power generation of the US would stop right now, EVERYTHING would still have power for 25 minutes. (ignoring all safeties tripping, and perfect load balancing)

That sounds so impressive.

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pletnes • today at 11:47 AM

That means a huge ability to absorb production or consumption peaks!

baxtr • today at 12:02 PM

Compared to what is this a good measure?

"How much is needed during a no sun and no wind period" could be reasonable comparison.

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ZeroGravitas • today at 12:51 PM

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