I saved a post here on how to create methane gas from sunlight and water. Then groked the below .01@kwh solar early stage solar companies. I got one. Then I found some government owned land with brackish water beneath them. Then I found some materials that would cause water to flow along the surface for collection. You would need a large shaped bomb to blast a hole for an upside down water tower to collect water. That would yield about 350 acre feet on 7 inches of annual rainfall spread over a square mile solar farm with a 500 megawatt output. Desalinated water would cover any remaining water needs. So you would have a square mile facility that produces both water and electricity. The two together could be used to either produce the worlds cheapest methane or support a data center with the world’s cheapest electricity, interestingly the demand for power is so high rhe government will fund these kinds of projects.