I delivered a (virtual) talk at a recent (August 2021) battery technology conference in South Africa.
Having taken a look at the recording, I think it has come out as a reasonably clear and cogent summary of the current state of play in terms of the deployment of, and the scaling of, Redflow ZBM2 based energy storage systems.
The talk runs for about half an hour, and you can find it here:
The slide deck that went with it is here: