I seem to recall from discussions with the company, a figure of around 30% of the total system cost for the stack repacement after an eventual target life of 4 years +.
Don't quote me on this, and i may have to check my notes, but I think this is around the ball park, so stack replacement should be eventually around the $3-4k mark.
And before anyone asks, it was confirmed that all their economic modelling and payback period determinations included allowances for stack replacement.
Cheers,
R.
CFU Price at posting:
23.3¢ Sentiment: LT Buy Disclosure: Held