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They are building giant solar desalinators in Saudi Arabia so this is maybe not far from the truth. https://wired.me/science/environment/desalination-solar-dome

• seanmcdirmid 4y ago
  Getting water from the sea up to the desert would be a huge challenge in California, and right on the coast isn’t very sunny for most of it.
• jhgb 4y ago
  I'm not sure what they're attempting to describe in the article but so far seems to me like a child's toy compared to a proper multi-stage flash distillation plant (which uses multiple stages and decreased pressures at each stage to massively decrease energy requirements) -- and even those should use more energy than reverse osmosis plants.