> All of the costs in the blog post are off by a couple orders of magnitude. Even if they weren’t way off, the proposed capital costs to replace Arizona’s extr

> All of the costs in the blog post are off by a couple orders of magnitude. Even if they weren’t way off, the proposed capital costs to replace Arizona’s extraction with from the Colorado river with SWRO is $24bn, which seems like a lot ? (~$3200 per capita). Would like to see sources for his capital cost estimates and the detailed calculations around operational costs, system lifespan and input energy (battery lifespan ? what capacity factor on the solar ? 6 hours in 24 is given in the article, which seems high). That said, I love this kind of big thinking. I’m completely sold on Casey’s solar-derived synfuels idea.