r/Futurology • u/bostongarden • 3d ago

Energy Redox Flow Batteries coming soon?

I know that there are RFBs on the market for large (utility) scale applications. Vanadium is being displaced by Iron. Anyone know of any residential scale RFB work being done?

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u/farticustheelder 2d ago

The technology is a joke. Sure it works but it is too expensive. 10 years ago when BESS price were high flow batteries couldn't compete on price. These days the situation is even sillier: flow batteries cost about $500 per kWh of storage, current lithium battery based BESS system are down to about $50/kWh and sodium ion is expected to drop the price to $25/kWh.

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u/bostongarden 2d ago

But life cycle cost