Everything that pushes the state of the art has challenges. With the development of on-shore wind farms you are probably looking at 3-5 years timeline even in q

Everything that pushes the state of the art has challenges. With the development of on-shore wind farms you are probably looking at 3-5 years timeline even in quite bureaucratic countries. With nuclear, it is at least 5x that and nuclear might never pay for itself without subsidy and it might go Three Mile Island, Chernobyl or Fukushima on you. Nobody sane is going to insure or finance the power plant without strong guarantees from the government. I would like for nuclear to be more competitive but the industry was cornered (has cornered itself) into so much bureaucratic overhead it is hard to almost impossible to do any kind of innovation in anything nuclear and make aggressive deadlines needed in order to be competitive while being safe/ robust and on budget. A falling 500 meter tall wind turbine is really bad. It might kill some people. A failure at a nuclear power plant might relocate whole cities and make life a living hell for thousands of people and the land basically uninhabitable for decades.