Sweden switches on largest battery energy storage system in the Nordics - Energy Storage
Sweden's largest energy storage investment, totaling 211 MW, goes live, combining 14 sites.
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Sadly no info whatsoever on batteries.
I found this on it; still need to read through it. Some sort of lithium battery technology, it seems.
I don't know specifics on this battery farm, but almost all are essentially fleets of shipping containers filled with smaller batteries, rather than some super-cool-mega-battery, so it's probably a safe assumption that this is a landmark project in scale, rather than in technology specifics.
Li-Ion seems to be the go-to solution. I hope new static energy storage projects will prefer other options (Na-Ion, flow batteries, ..) since there's a limited supply of Lithium and we need it for vehicles.
Yeah, I was hoping for other less toxic and more nature friendly ones, too.
It's the only chemistry possible to source unfortunately. I read about other chemistries, but they are hard to find.