Heyas,
Most "green" energy is nothing but a scam to soak Uncle Sucker. It neither has the energy density or the reliability to be any realistic alternative.
If you look at the total life cycle costs, energy output and peak generation capacity there's nothing out there to replace what we already have...nukes and natural gas.
Windmills, ethanol, gas from poop...it's all fluff.
It's remarkable how we've allowed ourselves to be crippled by this sideshow crap. Did you know that we no long have access to ANY plutonium for our planetary science probes? We no longer operate any reactors that make the stuff, and the last little bit we used we had to buy from the Russians. And they're not selling anymore.
4th and 5th Generation fisson plants along with re-processing of the fuel would eliminate practically all of the waste concerns. Natural gas for the mobile market.
The prize at the end of this game is fusion. It IS doable, but it's going to take a lot of really smart people to make it happen.
Nu