Vanadium news, page-5

It is always interesting that "effective storage" is always hailed as the keystone to renewable energy and rightly so, the sun doesn't always shine and the wind doesn't alway blow. What intrigues me is the apparent head in the sand attitude of fossil fuel power proponents. They are faced with the prospect of renewables becoming a cheaper power source, yet a significant cost of fossil fuel power generation is catering to peaks and troughs in demand.
My question is could Vanadium redox grid batteries be used to smooth out these peaks and lows.? Storing power over night ( bit like when the J tariff applies) Vanadium having the obvious advantage over lithium,
20 year life with the ability to change the V2O5 and being able to be recharged while discharging.
Happy for someone to point out the flaw in this reasoning, it worries me when something seems so obvious. Is my reasoning clouded by bias for Vanadium redox storage.