[terramars]

you can only account for 6hrs of sun per day, so it's more like 30liters per day. that gives you 10m^2 per American. however serving Americans is not a practical use case. i agree these kinds of systems are not going to be competitive with large scale PV driven RO (i build medium scale solar RO plants in africa and they're pretty good and surprisingly affordable). however having a mobile one you can put on a vehicle or deploy in a small scale distributed manner with little to no expertise would be extremely useful in low population density or nomadic context.