Why not nuclear power?

[Bearware]

25. Newer reactors could produce fuels from the air or water

A Hydrogen economy might be a big deal to setup but appropriate nuclear reactors could produce prodigious quantities of Hydrogen from water.

MSR's could also drive machines to pull CO2 out of the atmosphere and produce diethyl ether. Vehicles would have to be converted to burn it but it's production would not use fossil fuel. NNadir has written extensively about this.

Once you have diethyl ether and/or hydrogen, you put a increasing tax on other fuels extracted from the ground.

Molten salt reactors could be setup to either use extra electricity or process heat in the appropriate reaction. This might be appropriate in a situation where a base load is going to the grid but during off hours part of that extra energy could go to synthesizing the above. For process heat some of the molten salt could be directed to the location needing heat instead of generating electricity. if one is making concrete then some electricity may be need to raise the process heat up what concrete production requires.

I do not have a background in nuclear energy. However the relative simplicity, low pressure and flexibility of the MSFR may allow a number of applications to be added on that had not been thought of when the reactor was built.