I'm not a process engineer of course, but my feeling is that abundant free energy changes these equations. It simply does not matter what the efficiency is whe

I'm not a process engineer of course, but my feeling is that abundant free energy changes these equations. It simply does not matter what the efficiency is when the energy input is free. Also you wouldn't burn the fuel for electricity, you'd burn it for direct heat. A lot of petroleum refinery equipment is heated by burning things that have just been made in the refinery itself. That doesn't seem very different.