I'm curious about that quote. To my mind, we don't farm because we're trying to use land to "create energy", we farm because it produces food that humans demand in order to live. Is there some way to satisfy humans' need for food using solar panels? Is there a way of synthesizing consumable food using only electricity and ambient air, maybe add a bit of water, etc?

It just feels a bit silly to imply that the point of farming is to produce energy, in a general sense.