This might be it....., page-74

I hear a lot about wind and solar power storage.
IMO the holy grail is tidal power storage and VRFB will do that. in time IMO
The wind stops (sometimes for hours), the sun stops shining (sometimes for days) but the tide always flows apart from the known short period when it stops and changes direction which is why it has always been problematic until an efficient storage solution appears............... VRFB

and for my little bit on EV's, Lithium will not be in short supply in 3 years time IMO. LPD have a technology to majorly disrupt the existing and future players in this space and fill the supply gap of Lithium to the EV market.

DYOR