Ethanol From Waste Straw

Yes it is an apples and bananas comparison.

After oil is gone, Ethanol will compete with Hydrogen as fuel for
motor vehicles and aircraft.

However, it will not compete (on price) with coal or nuclear for grid
electrical power. But neither will SPS.

The benefit of SPS is that it has about the lowest collateral damage
cost, when compared with the enviro damage of coal and nuclear, I
count the cost of nuclear station decommissioning.

Does Ethanol have a lower collateral cost than, say, coal ? Probably.
But does the world have enough agricultural capacity (or waste straw)
to create the necessary quantity of ethanol ? If not, what about the
quantities of fertilizers required and their environmental impact
(production and runoff) ? And what about the waste products of
ethanol production ?

Interestingly, ethanol and SPS can coexist rather nicely. We can
grow fields of cereal crops beneath the SPS rectennas, at least where
the soil and climate allow it.