Pacific Northwest National Laboratory ....
The only barrier to fully commercializing the VRB in the US is a wind tax credit opposed by the republicans. This is a very good read...
https://cleantechnica.com/2012/10/05/pnnl-unienergy-new-redox-flow-battery-for-wind-power/
The Battery company is just down in Washington State. Sure hope they get the funds that would help them move forward! It could help us as they will need more Vanadium. We can sell your Vanadium to steel produces but it would be very cool to see some of it go into the new Vanadium Battery future!