JSt0rm
Lifer
What I wonder is this how could desalination be economically viable -FOR AG-? This is something I am reading all over the place.
Isn't the entire reason these farmers are able to sell the crops (especially exporting the majority of almonds, alfalfa etc. overseas) at a profit due in big part to cheap water? Desalination can't be nearly that cheap, and the crops simply wouldn't make sense without the water. Making your own has to cut all the profits out.
For example if an almond takes a gallon of water to produce, and it takes 8(? some number) watts just to to desalinate a gallon of water, what would the total cost of that water be once you factor in the following:
-costs of creating, operating (fuel alone!) and maintaining the power plants to produce this kind of power (almonds alone used 1.1 trillion gallons of water last year I believe)
-cost of creating and running the desalination plants
-costs of creating the piping and pumping (more energy) all the water to farms from the ocean. Most of the dry farms are 100+ miles from the ocean I think.
-pollution - ecological impacts to the ocean or surrounding areas of the desal plants where the waste is left, emissions from burning all the natural gas or coal
I can't imagine how it could ever still be profitable to use that kind of water to grow a water intensive crop in a desert. I imagine you'd have almonds costing $50/pound or something and nobody would buy them or for cheaper from another place.
Desalinization is not feasable for farmers. That same 600 gallons they can pump out of the ground for 4 cents would cost $4. The future will be no ground water and no crops.