4 ms·
> 5 liters per square meter per hour is trash. An average American uses a bit more than 300 liters of water a day, so you need 60 square meters of this to suppo
by addaon 3y ago
> 5 liters per square meter per hour is trash. An average American uses a bit more than 300 liters of water a day, so you need 60 square meters of this to support one average American.
Unit check. 5 liters per hour is 120 liters per day. So you need 2.5 m^2 per American (ignoring whether the hourly rate is sustainable, just correcting units).
This is about a third of the projected area of a typical car, so in terms of surface-area-per-person we're at about half that of cars (given about 2/3 of a car per American).
- mcpackieh 3y agoGood catch.
- terramars 3y agoyou 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.