RE: BBN on IES20 Nov 2020 09:19
Cheers Alfa, the most relevant bit about LI/vrfb price comparison from the BMN thread is this :-
"And if all that weren't enough, here's what #IES had to say about their "comparable kilowatt hour cost...vanadium vs lithium."
(44mins 20s)
"what we always focus on is the levelised cost, the cost of delivering a kilowatt hour to customers, over time."
Now here's the best bit. . ."on those measures, today, we are about 30% lower than lithium."
I imagine that the current 30% reduction is relevant averaged over the whole lifetime of the machine (25 yr is it). So it works out cheaper per KWh but the initial cost migfht be higher...which was the gist of my point about it being about economics. The comments about the warranty issue is intriuging since i believed the machines to be pretty reliable, although obv they don't have 25yrs worth of data yet.