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Foundation for their generous support for this project.A big thank you to John Corbett for his extensive research assistance on finances and to Philippe Rivière for his creative work on the website and his generous assistance at any time of the day.The report has greatly benefitted from partial or full proof-reading, editing suggestions and comments by Aileen Smith, Amory B. Lovins, Miles Goldstick, MV Ramana and Shaun Burnie. Thank you all.Special thanks to Anna Jeretic for making available the beautiful artwork and to Adélaïde Dubois-Taine for designing the cover page. NoteThis report contains a very large amount of factual and numerical data. While we do our utmost to verify and double-check, nobody is perfect. The authors are always grateful for corrections and suggestions of improvement.

The decommissioning of nuclear power plants and the storage of nuclear waste are major challenges for all nuclear countries. Both processes are technologically and financially challenging. We provide an analysis of the status quo of both processes in three major nuclear countries: Germany, France, and the U.K. Germany was able to gain some decommissioning experiences but not one large-scale reactor has been released from regulatory control. EDF was forced to cancel its target to immediately dismantle all GCRs by 2036 due to underestimated technological challenges, while in the U.K., decommissioning of the legacy fleet lasts well into the 22nd century. Until now, no scale effects could be observed, if EDF can reap scale effects due to the standardization of its fleet remains to be seen. The search for a deep geological disposal facility is the most advanced in France, where the start date is fixed by law to 2025. There are many uncertainties related to estimated future costs. In the three countries, three different funding schemes are implemented: Germany switched from internal non-segregated funds to an external segregated fund for waste management. In the U.K. the decommissioning of the