Desalination Energy Costs

Spoiler: desalination requires a lot of energy.

Desalination takes a huge amount of energy - does your plan take that into account?

Can the energy used to water desalination from the sea ?

OK? Without water you'll die, so invest that energy and capital. Other places seem to manage it and the more desalination facilities that are built, the more likely it is that technological and process improvements can bring down the cost. An extremely obvious approach to the energy requirement would be to exploit tidal power, which conveniently comes from the same source as your product input.

Nukes are extremely expensive, and take many years to build.If you are desalinating, you have absolutely no need to run it when the sun is not out. So, use cheap solar. You don't even need photovoltaics; greenhouses suffice. You just need to move the water vapor to someplace cooler to condense out.Pumping sea water to spread out in a coastal desert to evaporate, so the water vapor is blown up to the mountains and fills reservoirs, would be much cheaper than pumping fresh water up, an

why ? at scale desal water via solar looks to be very reasonable thing ?

Pretty sure you need fresh water rather than salt water for that. And desalination is an energy-expensive process.

In order to crack water, you need water, which is in short supply in the desert. Desalination + massive pumps and pipelines from the ocean would soak up any increase you get in price efficiency compared to batteries or even compressed air.

Desalination is not the answer.As TFA mentions, desalination is incredibly power-hungry. Additionally, it creates ultra-salty brine as a byproduct, which is difficult to dispose of -- if you just dump it into the ocean, you'll kill fish.Finally, desalination plants are a great option for supplying water when nothing else is available, but as soon as you can get water from pretty much anywhere else, they become extremely cost-inefficient. Take the case of Santa Barbara as a great examp

With enough energy and access to sea water you can desalinate I guess