The benefits of the Generation 2 Vanadium Redox Fuel Cell system can be summarised as follows:
· Simpler, safer, more efficient and much lower cost than gaseous Hydrogen Fuel Cells
· Refuelling in five minutes by exchange of electrolyte at a specialised refuelling station allows 24 hour operation of buses, taxis, fork-lift trucks and other vehicles (not possible with any other type of battery system).
· Electrolyte fuel is recharged in the refuelling station using renewable energy or off-peak grid power and is re-used continually
· Silent, emission free operation in electric urban vehicles
· 160 - 180 km between refuelling stops - system energy density approximately 50 Wh/kg, twice the Generation 1 VRB energy density
· Convenient integration into conventional IC engined fleets - refuelling points may be sited alongside diesel or petrol pumps
· Subject to local market conditions complete Redox fuel systems could be installed for fleet operators and electric fuel could be sold at below equivalent cost for gasoline or diesel
· Fleet operator studies conducted by the UK-based company, EFuel Techologies Ltd, and based on UK economics show overall cost savings, including capital depreciation, at less than 50% that of gasoline or diesel fuel
http://www.ceic.unsw.edu.au/centers/vrb/Magnam-VFuel%20website%20info.htm