- 76 - The table below gives a synthesis of the reactors and their geographical situation: NPP site Number of reactors Geographical situation Belleville 2 River site Blayais 4 Estuary site Bugey 4 River site Cattenom 4 River site Chinon 4 River site Chooz 2 River site Civaux 2 River site Cruas 4 River site Dampierre 4 River site Fessenheim 2 River site Flamanville 2 + EPR(under construction) Coastal site Golfech 2 River site Gravelines 6 Coastal site Nogent 2 River site Paluel 4 Coastal site Penly 2 + EPR (project) Coastal site Saint Alban 2 River site Saint Laurent 2 River site Tricastin 4 River site 1.1.1 Main characteristics Certain technological innovations have been introduced on the reactors over time as the NPP fleet has grown. The installations can thus be divided into six groups called "series", which differ from one another in certain respects. The thirty-four 900 MWe reactors consisting of: the CP0 series, comprising the four reactors at Bugey (reactors 2 to 5) and the two reactors at Fessenheim ; the CPY reactors, comprising the twenty-eight remaining 900 MWe reactors, which can be subdivided into CP1 (eighteen reactors at Le Blayais, Dampierre-en-Burly, Gravelines and Tricastin) and CP2 (ten reactors at Chinon, Cruas-Meysse and Saint-Laurent-des-Eaux). The twenty 1300 MWe reactors consisting of: the P4 reactors, comprising the eight reactors at Flamanville, Paluel and Saint-Alban; the P4 reactors, comprising the twelve reactors at Belleville-sur-Loire, Cattenom, Golfech, Nogent-surSeine and Penly. Lastly, the N4 series comprising four 1450 MWe reactors, two at Chooz and two at Civaux.
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