Try to dismantle a nuclear plant. It costs tons of money and time. Ask the people at Nagasaki or Tschernobyl.
Dismantle a coal power plant takes time, but one can reuse the iron and such. All the open mining fields and mining tunnels are the problem. In Western Germany, there are areas where house crack or cars fall down sudden openings caused by old mining tunnels.
Try to dismantle at wind mill or solar fields. It’s a quest of days and some bucks.
I prefer the easy way of living. So, my favorite are renewables.
Just stumpled upon this BBC article https://www.theguardian.com/business/2024/oct/23/sellafield-cleanup-cost-136bn-national-audit-office Cleaning up Sellafield, Europes biggest nuclear dump costs now up to 136.000.000.000 £ That’s the cost of nuclear. The dangerous rests of the power creation.