Nuclear is a bad idea in a monetary system.Maybe in a resourced based economy were the ideas of being cheap wouldnt apply!In this current system,mostly everything is made cheap to save money and mmake money at the same time.what a waste.Now the U.S. is having red flags popping up at alot of nuke sites saying there not maintained well and in bad shape.Whats up with hydrogen power ?In an abundant society,im guessing solar would be safer to go,try geothermal maybe?turn gyms into power generating units....
Criteria to assess potential energy sources:
1. EROEI
2. Abundance
3. Scalability
4. Energy density (you can't have electric planes with current battery technology so there will be a need for liquid fuels for the foreseeable future, etc.)
5. Unintended consequences (Long-term environmental impact)
These are the main ones, but the list can go on. Anyway:
1. Fossil fuels fail #2 (they're finite) and #5 (AGW)
2. Solar and wind fail #3 and #4 because while abundant, they are quite diffuse so enormous installations are necessary to harvest them. Plus they produce electricity, which doesn't help with the heavy machinery, although people are trying to create catalysts that will use solar panels to make hydrocarbons from CO2 and H2O.
3. Biofuels fail #1 (very low, often negative EROEI), #2 and #3 (there's only so much land on this planet) and #5 (as with all agriculture, unless you close the nutrient cycle, which is never the case, the soil becomes gradually destroyed)
4. Nuclear fails #4 in general with respect to transportation, it also fails #2 if we talk about conventional reactors. It doesn't fail #2 if we're talking breeder and thorium reactors, but both those and the conventional ones fail #3 as it takes a lot of time and huge investment to build those things. Still, this should have been the bridge technology for the next few centuries that would have given us time until we figure out something better, if such a thing is even possible. Too late at this point
5. Everything else renewable that gets mentioned of the sort of geothermal, tidal, etc. fails both #2 and #3 so it's not an option
6. Vaporware like fusion is not a solution either even if it has a great potential in principle
That's the general picture as it is, no BS, draw your own conclusions...