KOEBERG-1

Operational


Reactor Details

Reactor Type Model Owner Operator
PWR
CP1
ESKOM
ESKOM
Reference Unit Power (Net Capacity) Design Net Capacity Gross Capacity Thermal Capacity
924 MWe
921 MWe
964 MWe
2775 MWt
Construction Start Date First Criticality Date
01 Jul, 1976
14 Mar, 1984
First Grid Connection Commercial Operation Date
04 Apr, 1984
21 Jul, 1984

LifeTime Performance

Electricity Supplied Energy Availability Factor Operation Factor Energy Unavailability Factor Load Factor
234.18 TW.h
71.7 %
75.8 %
28.3 %
70.1 %
Lifetime performance calculated up to year 2025

Operating History

Year Electricity Supplied
[GW.h] 		Reference Unit Power
[MW] 		Annual Time On Line
[h] 		Operation Factor
[%] 		Energy Availability Factor
[%] 		Load Factor
[%]
Annual Cumulative Annual Cumulative
1984 3949.530 920 5063 95.3 91.3 91.3 86.4 86.4
1985 4004.300 920 4986 56.9 53.5 64.6 49.7 60.5
1986 3418.990 922 4575 52.2 53.6 60.1 42.3 53.0
1987 2864.540 920 4337 49.5 61.6 60.5 35.5 47.9
1988 5964.440 920 6791 77.3 76.0 64.0 73.8 53.8
1989 4498.080 922 5655 64.0 63.2 63.9 55.2 54.0
1990 3852.070 920 5360 61.2 52.7 62.2 47.8 53.1
1991 5976.840 920 6886 78.6 74.6 63.8 74.2 55.9
1992 3992.530 920 5697 64.9 50.3 62.2 49.4 55.1
1993 4097.940 920 6010 68.6 50.5 61.0 50.8 54.7
1994 5933.920 920 8422 96.1 74.9 62.3 73.6 56.5
1995 4576.860 920 5853 66.8 56.8 61.8 56.8 56.5
1996 5672.790 920 7260 82.6 70.4 62.5 70.2 57.6
1997 6610.690 920 7676 87.6 82.3 64.0 82.0 59.4
1998 7248.290 920 8552 97.6 90.1 65.8 89.9 61.6
1999 7051.700 920 7848 89.6 83.3 66.9 87.5 63.2
2000 5629.150 920 7250 82.7 70.2 67.1 69.8 63.6
2001 6042.500 920 7303 83.4 77.1 67.7 75.0 64.3
2002 7328.600 900 8417 96.1 93.1 69.0 93.0 65.8
2003 6413.360 900 7398 84.4 81.9 69.7 81.4 66.6
2004 6388.000 900 7358 83.8 81.1 70.2 80.8 67.3
2005 5821.020 900 6726 76.8 74.7 70.4 73.8 67.6
2006 4682.780 900 5435 62.0 59.8 70.0 59.4 67.2
2007 5747.010 900 6609 75.4 73.6 70.1 72.9 67.4
2008 7691.880 900 8689 98.9 98.3 71.3 97.3 68.7
2009 5467.970 900 6307 72.0 70.1 71.2 69.4 68.7
2010 5291.740 900 6085 69.5 67.8 71.1 67.1 68.6
2011 7622.370 930 8315 94.9 94.3 72.0 94.0 69.6
2012 6384.830 930 6975 79.4 78.5 72.2 78.2 69.9
2013 5527.640 930 6084 69.4 68.2 72.0 67.8 69.8
2014 8102.870 930 8760 100.0 99.6 73.0 99.5 70.8
2015 5321.750 930 5860 66.9 65.5 72.7 65.3 70.6
2016 7051.380 930 7759 88.3 86.8 73.2 86.3 71.1
2017 8103.470 930 8760 100.0 99.5 74.0 99.5 72.0
2018 5090.340 930 5838 66.6 62.5 73.6 62.5 71.7
2019 5510.900 930 6049 69.0 67.7 73.5 67.6 71.6
2020 7719.380 930 8572 97.6 94.5 74.0 94.5 72.2
2021 4120.920 924 4664 53.2 50.7 73.4 50.7 71.6
2022 7280.790 924 8236 94.0 90.1 73.8 90.0 72.1
2023 752.770 924 1041 11.9 9.4 72.2 9.3 70.5
2024 7832.560 924 8571 97.6 95.4 72.8 96.5 71.2
2025 2253.480 924 2666 30.4 27.6 71.7 27.8 70.1
Performance indicators are calculated from the Commercial Operation Date.


Above data generated by the PRIS database. Last update on 2026-07-20


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