> Very conservatively solar produces 30-50 times are much energy per acre as corn ethanol.

31 times, according to https://www.pnas.org/doi/full/10.1073/pnas.2501605122. That’s from pril 2025, so possibly slightly outdated, but I don’t think technical advances can have pushed that to “very conservatively 30-50 times as much”.

Depending on what you want to do with the energy, you are right it can easily be 50 times as much of useful work. For example, ICE cars turn over 80% of that energy into heat, electric cars less than 20%. That’s a factor of 4 in conversion ratio.