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> Are other comments correct? $800/kwhr for flow batteries? Yikes. No, this is completely uncompetitive, so batteries as costly as that would only be used for
by tuatoru 4y ago
> Are other comments correct? $800/kwhr for flow batteries? Yikes.
No, this is completely uncompetitive, so batteries as costly as that would only be used for space applications, for which flow batteries are probably unsuited.
$800 per kW (not kWh) is plausible as a capital cost.
One reason to use flow batteries in grid applications is extremely long lifetime compared to Li-ion (tens of thousands of charge-discharge cycles, multiple decades of calendar life). Grid engineers are used to thinking in terms of the next forty years.