I was under the impression from reading somewhere that the...

I was under the impression from reading somewhere that the calculation was based on two complete cycles per day,but you sound like you know your stuff so I stand corrected. Looks like then you need to only use during the night. I suppose the average user would have no trouble consuming the full 10kw during nightime and then excess power just charges it during the day.Have any figures been produced at this stage what getting the battery would cost to replace fluids etc after the 10 year period or whenever the battery reaches its lifetime use?This would be interesting when comparing a flow battery against lithium,we know the lithium degrades over time,but if the battery can be refurbished then the flow battery gets a few more ticks!!