Nuclear is NEVER cost effective.
What is cost effective are solar panels and offshore wind farms, as well as well maintenance and renovation of infrastructure.
Natural gas stations are more efficient and cheaper than nuclear (well, everything is cheaper and cleaner than nuclear). LNG burns cleaner than coal and oil and can service heavy industry. The engineers just need to continuously optimize what they’re building and don’t over-complicate the thing.
Something that helps any environment is to plan for more than just a power station. Resources are always spent creating something, might as well do it right and think of the whole life cycle and relationships through time (residential, industrial, commercial).