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First sodium-ion battery storage station at grid level opens with cells that can be charged in 12 minutes (www.notebookcheck.net)

submitted 4 months ago by [email protected] to c/[email protected]

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[–] [email protected] 1 points 4 months ago (2 children)

Lithium isn't used for grid batteries because weight doesn't matter. Grid batteries with lead acid last 3 decades. Does this one last longer?

[–] [email protected] 3 points 4 months ago

Lithium is used in grid storage:

And that's just what I could find in a couple of minutes.

[–] [email protected] 1 points 4 months ago (1 children)

Lead acid is pretty inefficient though, something like 80% iirc.

[–] [email protected] -2 points 4 months ago (2 children)

Again, that doesn't matter since the battery doesn't move. This is a grid battery

[–] [email protected] 5 points 4 months ago (1 children)

Of course it's relevant. My LiFePos reach about 92% efficiency. Losing 12% of energy in the storage process or not losing them is a big difference.

[–] [email protected] 1 points 4 months ago (1 children)

The question is then whether it's cheaper to buy LiFePos instead of lead acid or to install more solar panels.

[–] [email protected] 2 points 4 months ago (1 children)

Yep. But also you need to run lead acid in a smaller charge window so you need more of them and when running out of space more panels might not be feasible - many variables in the whole thing, I don't think there's a universal answer, one can't really get around setting up a small spreadsheet.

[–] [email protected] 1 points 4 months ago

Agreed - it's not that there are no space constraints at all.

[–] [email protected] 1 points 4 months ago

You’re thinking of density. Efficiency certainly matters.