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I'll leave you checking the actual returns for various energy sources as an exercise.
Second key indicator is life-cycle carbon emissions:
https://en.wikipedia.org/wiki/Life-cycle_greenhouse-gas_emissions_of_energy_sources
The key problem with renewables is very low power density. Uranium has the largest power density of all power sources, which means you will *always* need to spend least energy and carbon on manufacturing operations, because everything is smaller. And not like 2x smaller, but thousands time smaller.