Converting the worlds power plants to nuclear would cost at least 8,500,000,000,000,000 or 8,500 trillion dollars.
Well, I don't know how you got your figures. But unless you do explain, I'm assuming that you neglected:
- lower prices due to improved, maturing technology;
- lower prices due to sheer mass production (it worked for Ford);
- the fact that ALL the world's plants don't need replacing; in some places solar, wind, geo and hydro may be THE answer.
Yeah it might. But over 50-100 years, that's probably doable; it all depends on what the customers demand. And it certainly will cost more to use solar or wind power, or geo or hydro, if it is feasible at all, to replace all the coal plants in the world, even ignoring the baseload thing. And within the next 100 years, ALL of them will require replacement in any case.
This would create 10,000,000,000 pounds of spent nuclear fuel rods a year. (5,000,000 tons)
There would be 50,000 places to guard to make sure nobody steals any material, blows anything up, or to make damn sure no natural disaster occurs.
Not if they're MSRs, or modular units buried in neighborhoods. But the same thing applies to hydro dams, and expensive solar and wind fields. Coal plants, meh, who cares if some of those get blown up? So we have full employment. That's a problem?
Lets say the plants are a new design, super powerful, all those figures could be cut in half. (but you still need multiple ones due to refueling, where you have to shut them down for a while)
Not if they are MSRs.
Can you honestly say you would feel safe with every country on the planet running clean nuclear power plants? 25,000 pools of spent fuel. (because even if you dry storage them and take it to some distant mountain to bury and guard for the next million years, they have to sit in pools for a long time first)
The alternatives? You prefer a world of coal ash? Look, waste is a temporary problem. MSRs can eat the wastes as fuel.
Obviously thorium reactors would be a much better idea. Just like natural gas is safer than coal. But human beings don't always do what we want them to. You just know countries with uranium will still use it.
So you harangue them, get them to change. You're pretty good at that.
Can you honestly tell me the world would be better off with 20,000 running reactors? In every country on earth?
Damn, bring it on. Maybe everyone could be prosperous enough that the real terrorists wouldn't be able to get traction in the poor countries of the Earth? Wouldn't it be nice if we could eliminate greed like we would have eliminated hunger? (Stop me...I feel like I'm slipping over the edge......)
I've leaned pretty heavily on new technology in my answers here; MSRs and LFTRs look pretty good, but perhaps there are problems. Perhaps in the end they'll only be good in comparison to the mess we have now. Or not. If that's the case, our goose is cooked. But if we don't try using nuclear fission power for the short term, I'm pretty sure it will indeed be cooked. So I'm hoping for something of a miracle, though not as much of a miracle as a geothermal hole in every backyard.