Nuclear radiation safety is assessed using the "As Low As Reasonably Achievable" standard, which essentially says that if you make a nuclear power plant produce

Nuclear radiation safety is assessed using the "As Low As Reasonably Achievable" standard, which essentially says that if you make a nuclear power plant produce power at half the price of the next-door coal power plant, you have to spend all of the increased profit on increased safety measures. Nuclear can never out-compete non-nuclear power under that regulatory regime.