Passive Solar Water Desalination
Advances are always welcome, but it's worth noting that desalination works economically right now.In the last 15 years large scale desalination has become practical. It's one of the great engineering feats of our time.We can now generate it at scale for less than $.01 per 6.4 gallons. This includes the cost of the electricity, which is about half the expense.San Francisco charges $.02/gallon to residents, 12 times that price. It's now cost effective for any coastal city in America to supply residential water this way.Lots of people still think desalination is still impractical, because it was 20 years ago. They just haven't learned about the new tech.The tech:https://www.energymonitor.ai/tech/can-desalination-save-a-dr...Residential rates:https://sfpuc.org/accounts-services/water-power-sewer-rates/...