NPR has a pretty cool article on our power grid, locations of power plants, and some line addition proposals – it is extremely interesting to see what kinds of sources our nation is suited to support. For example, in the image above here, if we added a whole bunch of solar plants in New Mexico we would utilize a resource that is just begging to be farmed.
The image below, from the article, shows the amount of solar power facilities we have in the United States. The solar plants are the red dots. You might also notice that there are two – look really hard in the southwest.