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Unit Capability Factor

Includes all reactors that were in commercial operation within 2022 and 2024
Country 2022 2023 2024 2022 - 2024
Number of Reactors UCF
[%] 		Number of Reactors UCF
[%] 		Number of Reactors UCF
[%] 		Number of Reactors UCF
[%]
ARGENTINA 3 52.8 3 63.3 3 72.5 3 62.9
ARMENIA 1 72.9 1 70.2 1 72.5 1 71.9
BELARUS 1 45.4 2 81.0 2 77.0 2 70.5
BELGIUM 7 85.4 6 90.1 5 86.9 7 87.2
BRAZIL 2 83.0 2 82.7 2 89.6 2 85.1
BULGARIA 2 88.2 2 87.7 2 85.1 2 87.0
CANADA 19 68.1 19 69.7 19 68.2 19 68.7
CHINA 53 90.3 55 89.8 56 91.0 56 90.4
CZECH REPUBLIC 6 85.3 6 83.9 6 81.4 6 83.5
FINLAND 4 92.1 5 93.9 5 84.1 5 89.5
FRANCE 56 58.1 56 67.3 56 74.2 56 66.5
GERMANY 3 95.4 3 88.1 3 94.0
HUNGARY 4 89.4 4 90.0 4 90.6 4 90.0
INDIA 18 85.6 19 84.6 20 84.4 20 84.8
IRAN, ISLAMIC REPUBLIC OF 1 92.5 1 75.3 1 78.7 1 82.2
JAPAN 10 59.6 12 84.7 14 82.9 14 76.3
KOREA, REPUBLIC OF 25 81.7 25 80.2 26 79.6 26 80.4
MEXICO 2 79.3 2 90.2 2 90.8 2 86.8
NETHERLANDS, KINGDOM OF THE 1 94.1 1 90.1 1 80.3 1 88.2
PAKISTAN 6 86.8 6 84.5 6 86.4 6 85.9
ROMANIA 2 91.4 2 92.5 2 90.7 2 91.6
RUSSIA 37 85.6 37 83.1 37 85.3 37 84.7
SLOVAKIA 4 92.6 4 94.0 5 87.9 5 91.4
SLOVENIA 1 89.1 1 87.8 1 91.1 1 89.3
SOUTH AFRICA 2 64.1 2 50.3 2 47.6 2 54.0
SPAIN 7 91.4 7 89.8 7 88.5 7 89.9
SWEDEN 6 84.2 6 79.8 6 82.5 6 82.1
SWITZERLAND 4 90.5 4 91.1 4 89.3 4 90.3
UNITED ARAB EMIRATES 2 82.6 3 91.2 4 89.5 4 88.6
UNITED KINGDOM 11 78.0 9 73.0 9 72.7 11 74.7
UNITED STATES OF AMERICA 92 93.1 93 94.1 94 92.5 94 93.2
Total 395 81.7 401 83.9 404 84.7 412 83.4

The following information is included in the totals:

TAIWAN, CHINA 3 92.4 3 94.1 2 90.1 3 92.4


Above data generated by the PRIS database. Last update on 2025-12-04


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