France: Électricité de France Case Study. Annex II (Asset management for sustainable nuclear power plant operation)

In 2018, EDF operated a standardized fleet in France: 58 pressurized water reactors from one vendor and one licence through the 900 MW series (34 reactors); the 1300 MW series (20 reactors); and the 1450 MW series (4 reactors). In total, 75% of the fleet was built between 1979 and 1990, the oldest reactor is 40 years old and the average age of the fleet is 30 years. Thus, LTO programmes and plant life management have been key issues for years.The principles of asset management as mentioned in ISO55000:20141 are implemented in EDF processes, from strategic levels to working levels. If the main goals are shared inside the company, the nuclear operating branch is organized following several programmes (e.g.ageing management, obsolescence, maintenance and optimization, refurbishment for major components) and projects (e.g. periodic safety reviews, post Fukushima improvements) that are quite autonomous to contribute in maintaining or improving the value of the assets.