Overview
- The ASNR told lawmakers on Thursday that, based on current knowledge, it has not identified obstacles that would prevent many EDF reactors from operating beyond 60 years.
- The conclusion is provisional and the regulator has opened a public consultation until 2 December 2026 that will be followed by required site‑by‑site safety demonstrations and the usual ten‑year re‑examinations before a final opinion is issued.
- The authority singled out specific technical limits that could block extensions in some cases, naming non‑replaceable parts such as the reactor pressure vessel, the reactor pit and certain molded elbows in the primary circuit.
- Extending the fleet will need sustained industrial effort and funding after large past modernization costs, with the Grand Carénage program estimated at over €100 billion and annual maintenance costs already above €6 billion.
- Civil society scrutiny and operational risks from heatwaves and more variable renewables — highlighted by a Greenpeace Luxembourg study on Cattenom unit 1 — raise political and local safety hurdles that could shape which reactors, if any, are granted long extensions.