There was an excellent article here a few months ago about what drives the cost of nuclear power up so much, at least in the US. The US Navy has managed to deve

There was an excellent article here a few months ago about what drives the cost of nuclear power up so much, at least in the US. The US Navy has managed to develop relatively cheap nuclear reactors for submarines, so the technology exists. Commercial reactor costs are constantly driven up by regulations that become stricter during the process of building power plants, to the point where they often have to dismantle things to comply with new regulations that came into effect during construction. Nuclear plants go way over budget consistently, and it sounds like the economic case is actually getting harder for them. Ultimately these regulations are driven by the large fraction of the public that is terrified of nuclear disaster. Unless that changes, costs may not go down significantly.