For VRFB's it is typically about 1MWh per 40foot container. This compares with about 1.5MWh for Lithium-ion, however it is possible to stack the VRFB container, eg as Sumitomo do with the power stacks sitting on top of containers that house the electrolyte tanks, - so the surface area occupied by VRFB's could actually be less than for lithium ion.
ojt - I think it is highly unlikely as on the 31st August BMN were listed as having 8.1% ownership of the company - to drop by 0.2% their holding would have had to have changed by only 1.2M shares.
On monday and tuesday this week there was 3M sells dropped in in 500K chunks so by the end of play on tuesday if these were from BMN then they would have dropped to around 7.6%, triggering a requirement for a TR1 notification 'no later than midnight on the day of trade'. (https://www.fca.org.uk/markets/ukla/regulatory-disclosures/submit-investor-notification) as we know that fortune is a stickler for the rules the idea that he might have missed such a deadline is somewhat incredible.
Pro-Spector - you do not appear to understand that Vametco produces Nitrovan not FerroVanadium, they are quite different as everyone who has been here for more than 2 years will be able to tell you. I'm not going to bother to explain it because it is all laid out quite clearly on the Bushveld Perspective.
Sorry Pro5pector but you are all over the place on both this and ATM. I think you need to do a bit more reading around the subject to really pronounce in anything like the way that you have. Perhaps you could come back to us in a few months time.
Vauxhall Viva, don't be stupid, I'd make sure that the contract was not a fixed price one but instead worked like those operated by EDF for Flamanville nuclear reactor, or Crossrail for TfL or Medupi and Kusile power stations - once you have got the government on the hook you can simply string out the project as long as you like.
On the other hand Fortune and Mikhail are too honest by half and will no doubt come in on budget.
Gr33ning68 - you are miles out. The acknowledge ratio is 5,000 tonnes of Vanadium per GWh of VRFB energy storage. The Vanadium is only about 8% of the mass of the electrolyte so for 1GWh the weight of electrolyte would be about 60,000 tonnes.
For 1.44 GWh the 5,000 t/GWh ratio of course gives 7,200 tonnes of Vanadium. At say $30 per Kg that would be 216 Million dollars.