@alyx
The idea is solid, but I believe, it is based on a wrong premise.
We have enough nuclear material to obliterate our species. The only reason we aren't using it is, because the chemical power plants are still a lot cheaper in the initial investment stage.
We also have already unlocked the key to fusion energy, and the only issue we're facing is not releasing it, but collecting it in a sustainable way. Global worming is literally us heating up the planet with all the energy we're releasing. And all of that is before AI might allow us the construction of dyson satellites. Yeah, we have insane amounts of cataclysmic problems, but lack of energy is really not one of them.