Comment by dr_dshiv

Over 1.6% of the contiguous USA is dedicated to corn ethanol. If that land were replaced by solar, at 20% capacity, it could produce 10.8 PWh of electricity. That’s two and a half times the total amount of electricity that the US currently produces per year. Biofuels produce the equivalent of ~ 0.4 PWh.

1.5% of land area dedicated to solar can produce enough to meet all global energy needs (not just electricity), according to this article. https://www.nature.com/articles/s43247-024-01754-4

His point is probably we'd save 99.5% of the land that is going to make bioethanol.