[niftich]

Yes and no. It's possible, but not very efficient per space/work vs. returns. Efficiency can be improved by using electricity after all, through solar generation. See:

https://en.wikipedia.org/wiki/Solar_still#Practical_consider...

https://en.wikipedia.org/wiki/Solar_desalination

https://en.wikipedia.org/wiki/Solar-powered_desalination_uni...

However, also see https://en.wikipedia.org/wiki/Seawater_greenhouse for a clever agriculture scheme.