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World's largest sodium-ion battery goes into operation - Energy Storage
(www.ess-news.com)
This is a most excellent place for technology news and articles.
Still only price and kw. 😤
No, kw (power) is a fundamentally different unit from kwh (energy).
Energy is conserved, so that's how we use it and pay for it, but power capacity is very important for infrastructure. A battery that can hold 1 GWh worth of energy, but can only output it at a rate of 10 MW, might have a ton of limitations to its usefulness.