I guess you mean fusion. Fission is what we currently have/use for power plants. Even there research might end up in a better solution, because nuclear energy i

I guess you mean fusion. Fission is what we currently have/use for power plants. Even there research might end up in a better solution, because nuclear energy is actually a good source of energy because it is so dense. But current implementations of fission are really hard to recommend over even coal power plants.