ITER, a nuclear fusion project funded by many nations, is assembling the biggest nuclear fusion test reactor ever, in France. Due to "go nuclear" in the 2020s, this unit should produce 500MW for every 50MW put in as a result of the fusion process. Unlike nuclear fission, nuclear fusion has the potential for almost limitless nuclear energy without the radioactive waste risks associated with nuclear fission. Even with a successful project, commercial nuclear fusion reactors are unlikely until the second half of the 21st century.
Man's ingenuity is such that even the technical challenges of fusion will be overcome when the imperative is great enough. I have faith in the ability of scientists and engineers (and even in politicians) to come up with the solutions in time to help produce a better world for my children and grandchildren. It's just a pity I shall not be around to see it.