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by Schroedingersat 1319 days ago
Vanadium flow batteries are about half but will not stay that way if scaled (vanadium production is too limited).

Iron flow is currently 'it will be dirt cheap later we swear, ask us about a demo project'. So probably substantially more expensive. No compelling reason not to believe them though.

1 comments

This was wrong. Vanadium electrolyte is only 1-2 molar. Vanadium production on the order of current generation can support ~100GWh/yr