Many is 4 out 22 plants[1] and they are located on rivers because it's needed. Also, maybe it's to have less loss when selling generated power to eastern countr

Many is 4 out 22 plants[1] and they are located on rivers because it's needed. Also, maybe it's to have less loss when selling generated power to eastern countries? [1] https://commons.wikimedia.org/wiki/File:Nuclear_power_plants_map_France-fr.svg https://commons.wikimedia.org/wiki/File:Nuclear_power_plants...