|Map of french nuclear plants|
This map shows the implantation of the French nuclear plants in 1998. Overall, 59 units (or tranches) of pressurized water Reactors were in activity in 2005. Eleven units (Bugey, Chinon, Saint-Laurent-des-Eaux, Marcoule et Chooz), belonging to the first generation of graphite-gaz reactors using natural uranium (UNCC) have been definitively closed. SUPERPHENIX, the breeder reactor at Creys-Malville have been closed in 1997, but its predecessor PHENIX at Marcoule still runs for researches and development.