In the desert, you typically have to build expensive transmission lines out to the site to get the power to where you actually want it. So, (1) you have to acq

In the desert, you typically have to build expensive transmission lines out to the site to get the power to where you actually want it. So, (1) you have to acquire single-use land, (2) the panels produce half as much power as they could because of heat and dust, (4) the panels' life is curtailed by the high temperature, and (4) you have to build a long transmission line back to someplace populated. There is no question but that panels in the desert can work. But it is a poor use of a panel that could produce much more power, more cheaply, longer.