There's enough federal land in Arizona to do it. The St James Bay project is a sequence of hydroelectric dams covering an area the size of Scotland -- and it w

There's enough federal land in Arizona to do it. The St James Bay project is a sequence of hydroelectric dams covering an area the size of Scotland -- and it was done in the sixties. We're going to need the power. It's unit-profitable. So really, the issue is where to stick it. (It would, of course, be much more reasonable to simply cover the rooves of all existing buildings, which is a larger area, and have some accessory generation as well.)