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More info:
Unplanned Capability Loss Factor
Includes all reactors that were in commercial operation within
2022
and
2024
Country
2022
2023
2024
2022
-
2024
Number of Reactors
UCL
[%]
Number of Reactors
UCL
[%]
Number of Reactors
UCL
[%]
Number of Reactors
UCL
[%]
ARGENTINA
3
21.8
3
1.9
3
2.2
3
8.6
ARMENIA
1
4.2
1
7.4
1
1.1
1
4.2
BELARUS
1
33.9
2
2.2
2
8.6
2
12.9
BELGIUM
7
6.8
6
1.9
5
4.8
7
4.8
BRAZIL
2
4.7
2
4.9
2
2.3
2
4.0
BULGARIA
2
1.1
2
0.0
2
0.0
2
0.4
CANADA
19
2.9
19
1.6
19
4.6
19
3.0
CHINA
53
0.5
55
0.4
56
0.4
56
0.4
CZECH REPUBLIC
6
0.8
6
0.9
6
2.8
6
1.5
FINLAND
4
1.6
5
2.6
5
9.0
5
4.9
FRANCE
56
22.5
56
15.1
56
8.0
56
15.2
GERMANY
3
0.2
3
0.0
3
0.1
HUNGARY
4
2.9
4
1.2
4
1.2
4
1.8
INDIA
18
2.5
19
4.4
20
4.6
20
3.8
IRAN, ISLAMIC REPUBLIC OF
1
0.6
1
0.3
1
2.8
1
1.2
JAPAN
10
1.1
12
1.3
14
1.3
14
1.2
KOREA, REPUBLIC OF
25
2.2
25
2.1
26
2.2
26
2.2
MEXICO
2
7.4
2
1.5
2
2.6
2
3.8
NETHERLANDS, KINGDOM OF THE
1
0.0
1
3.6
1
6.0
1
3.2
PAKISTAN
6
5.6
6
3.3
6
2.7
6
3.8
ROMANIA
2
1.2
2
1.2
2
1.6
2
1.3
RUSSIA
37
1.8
37
3.3
37
2.8
37
2.6
SLOVAKIA
4
0.9
4
0.3
4
3.2
4
1.5
SLOVENIA
1
1.6
1
8.1
1
0.3
1
3.3
SOUTH AFRICA
2
11.3
2
4.8
2
2.2
2
6.1
SPAIN
7
2.3
7
2.3
7
3.6
7
2.7
SWEDEN
6
8.2
6
8.6
6
4.8
6
7.2
SWITZERLAND
4
0.4
4
0.6
4
1.7
4
0.9
UNITED ARAB EMIRATES
2
5.0
3
0.0
4
1.5
4
1.8
UNITED KINGDOM
11
7.9
9
8.0
9
13.1
11
9.6
UNITED STATES OF AMERICA
92
0.7
93
0.4
94
1.4
94
0.8
Total
395
5.6
401
3.9
403
3.2
411
4.2
The following information is included in the totals:
TAIWAN, CHINA
3
0.0
3
0.4
2
1.1
3
0.4
Above data generated by the PRIS database. Last update on 2025-07-18
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LAST THREE YEAR FACTORS
Energy Availability
Unit Capability
Unplanned Capability Loss
LIFETIME FACTORS
Energy Availability
Unit Capability
Unplanned Capability Loss
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Energy Availability
Unit Capability
Unplanned Capability Loss
Load Factor
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