This is a weird angle I think? Desalination brine is a real problem, so if you can eliminate that then efficiency is less of an issue (especially given that des

This is a weird angle I think? Desalination brine is a real problem, so if you can eliminate that then efficiency is less of an issue (especially given that desalination plants are often in places with a lot of sunlight!). You don't want to be super duper inefficient but "no waste that has to be dumped back out" feels really big to me