Desalination can be a very capital intensive process with high energy consumption and high maintenance requirements. It may not be ideally suited to many water poor areas of the world.
Research into alternatives: example US Department of the Interior funded research for direct wind power desalination – direct water pressure. Use in Pacific Islands and remote communities but is suitable for seawater because it’s not possible (in this case) to generate sufficient pressure: 400psi seawater, 40psi brackish water.
Concentrated solar device. Solarsido
Insolation is focused, boils seawater, steam condenses and flows to another chamber.
Simplicity of the device. Because the water is evaporative water and no filtration is involved there is no need for antiscalants etc. It is cited as being affordable (low purchase price and low maintenance cost) and reliable (no moving parts).
Energy is required to pump the seawater into the ‘chambers’, but this is low pressure and may be achieved manually.
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