RE: Any idea of...15 Feb 2021 14:49
Yes i believe you're correct that the vanadium doesn't deteriorate and doesn't need to be replaced over the lifetime (25 yr) and can be re-cycled easily. My use of it's price as an initial cost variable was a bit mis-leading in that sense.
However, that set me thinking.
Given that the cost of the Vanadium electrolyte is a large proportional cost of the VFRB (around 30- 40% i think) and given the large fluctuation in cost Vanadium over say, a 25 year period (eg over years 2000 - 2018 the min price of V was approx 2 USD/lb to a max of 26 USD) doesn't that raise the possiblilty the value of the Vanadium in your ailing 25 yr old VFRB could be significantly different to it's initial cost and possibly be worth more than the cost of the VFRB in the first place?
In which case the future price of Vanadium is indeed, a big unknowable factor in any VFRB projects' overall economics?
I'm assuming that the 'old' Vanadium electrolyte is worth a significant price compared to 'new'.