Nuclear Power Operators

66 utilities and companies worldwide

Operators

464

Reactors

264

GW Capacity

Operator	Reactors	Operational	Countries	Capacity
1.Électricité de France	53	49	1	56,842 MW
2.Rosenergoatom	46	30	1	24,435 MW
3.Nuclear Power Corporation of India	32	20	1	8,020 MW
4.Exelon	27	17	1	16,232 MW
5.Tokyo Electric Power Company Holdings	17	-	1	-
6.China National Nuclear Corporation	16	12	1	12,569 MW
7.Korea Hydro & Nuclear Power	16	15	1	13,933 MW
8.Ontario Power Generation	14	8	1	5,896 MW
9.Magnox Ltd	12	-	1	-
10.Entergy	9	6	1	5,903 MW
11.Duke Energy	9	8	1	8,011 MW
12.Vattenfall	8	5	1	5,817 MW
13.Slovenské elektrárne	8	5	1	2,471 MW
14.Bruce Power	8	8	1	6,944 MW
15.Taiwan Power Company	8	-	1	-
16.Dominion Energy	8	6	1	5,419 MW
17.Tennessee Valley Authority	7	7	1	7,874 MW
18.Engie Electrabel	7	2	1	2,179 MW
19.Kyushu Electric Power	7	4	1	4,140 MW
20.Kansai Electric Power Company	7	5	1	4,218 MW
21.Energoatom	7	7	1	5,835 MW
22.Rosatom	6	2	2	70 MW
23.E.ON	6	-	1	-
24.Chubu Electric Power	6	-	1	-
25.Southern Nuclear	6	6	1	6,018 MW
26.Iberdrola	4	4	1	4,261 MW
27.FirstEnergy	4	4	1	3,782 MW
28.Atomic Energy Organization of Iran	4	1	1	915 MW
29.ČEZ Group	4	4	1	1,680 MW
30.EnBW	4	-	1	-
31.Teollisuuden Voima	4	3	1	3,500 MW
32.Florida Power & Light	4	4	1	3,046 MW
33.Japan Atomic Power Company	4	-	1	-
34.Eletronuclear	3	2	1	1,990 MW
35.Nucleoeléctrica Argentina	3	3	1	1,754 MW
36.Progress Energy	3	3	1	2,542 MW
37.Constellation Energy	3	3	1	2,640 MW
38.SOGIN	3	-	1	-
39.DTE Energy	3	1	2	1,093 MW
40.Public Service Enterprise Group	3	3	1	3,272 MW
41.Shikoku Electric Power	3	1	1	890 MW
42.Xcel Energy	3	3	1	1,605 MW
43.Tohoku Electric Power	3	1	1	825 MW
44.OKG	3	1	1	1,450 MW
45.Arizona Public Service	3	3	1	3,829 MW
46.NextEra Energy Resources	3	3	1	2,143 MW
47.Chugoku Electric Power Company	3	1	1	820 MW
48.SCANA	3	1	1	900 MW
49.Hokkaido Electric Power Company	3	-	1	-
50.Axpo Holding	2	2	1	760 MW
51.Luminant	2	2	1	2,300 MW
52.Pacific Gas and Electric Company	2	2	1	2,190 MW
53.American Electric Power	2	2	1	2,130 MW
54.VEW	2	-	1	-
55.Alabama Power	2	2	1	1,658 MW
56.Japan Atomic Energy Agency	2	-	1	-
57.Eskom	2	2	1	1,934 MW
58.Comisión Federal de Electricidad	2	2	1	1,608 MW
59.China Railway Shanghai Group	2	-	1	-
60.Fortum	2	2	1	1,062 MW
61.China Railway Nanchang Group	2	-	1	-
62.NB Power	2	1	1	705 MW
63.Hokuriku Electric Power Company	2	-	1	-
64.Talen Energy	2	2	1	2,130 MW
65.EDF Energy	2	2	1	1,364 MW
66.China General Nuclear Power Group	2	-	1	-

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Data source: IAEA PRIS database & Wikidata • Updated regularly