> Not to mention the large amount of real-estate that a solar farm requires.

In a recent 400 MW solar farm installed in Texas, I looked at the cost of land in that area, vs. the cost of the solar field. Land was about 1% of the cost. Land is cheap. We have lots of land. We have so much land, we use it for low value things like farming. And land that isn't suitable for farming is even cheaper than that.