SOUTH TEXAS-1

Operational


Reactor Details

Reactor Type Model Owner Operator
PWR
WH 4LP (DRYAMB)
NRG Energy, Inc.
STP Nuclear Operating Co.
Reference Unit Power (Net Capacity) Design Net Capacity Gross Capacity Thermal Capacity
1280 MWe
1250 MWe
1354 MWe
3853 MWt
Construction Start Date First Criticality Date
22 Dec, 1975
08 Mar, 1988
First Grid Connection Commercial Operation Date
30 Mar, 1988
25 Aug, 1988

LifeTime Performance

Electricity Supplied Energy Availability Factor Operation Factor Energy Unavailability Factor Load Factor
336.52 TW.h
85.2 %
85.0 %
14.8 %
85.8 %
Lifetime performance calculated up to year 2023

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
1988 2791.490 1250 2404 79.6 80.0 80.0 74.9 74.9
1989 6307.670 1250 5524 63.1 63.1 67.3 57.6 61.9
1990 6072.870 1251 5198 59.3 59.4 63.9 55.4 59.1
1991 7239.780 1251 6069 69.3 69.3 65.5 66.1 61.2
1992 7265.140 1251 6033 68.7 68.7 66.3 66.1 62.4
1993 666.030 1251 676 7.7 7.7 55.3 6.1 51.8
1994 8251.410 1251 6842 78.1 78.2 58.9 75.3 55.5
1995 9301.770 1251 7570 86.4 86.5 62.7 84.9 59.5
1996 10226.800 1251 8213 93.5 93.5 66.4 93.1 63.6
1997 9873.230 1251 8019 91.5 91.6 69.1 90.1 66.4
1998 10859.940 1250 8739 99.8 99.8 72.0 99.1 69.6
1999 9645.370 1250 7857 89.7 89.7 73.6 88.1 71.2
2000 8591.900 1250 6905 78.6 78.6 74.0 78.2 71.8
2001 10338.160 1250 8240 94.1 94.1 75.5 94.4 73.5
2002 10867.940 1250 8573 97.9 97.8 77.1 99.0 75.2
2003 6858.780 1250 5433 62.0 62.3 76.1 62.6 74.4
2004 11103.580 1250 8712 99.2 99.2 77.5 101.1 76.1
2005 9901.850 1280 7845 89.5 89.6 78.2 88.3 76.8
2006 10144.550 1280 7942 90.7 90.7 78.9 90.5 77.5
2007 11804.800 1280 8760 100.0 100.0 80.0 105.3 79.0
2008 10800.560 1280 8108 92.3 92.3 80.6 96.1 79.9
2009 10052.230 1280 7582 86.6 86.6 80.9 89.6 80.3
2010 11304.110 1280 8588 98.0 98.0 81.7 100.8 81.3
2011 10616.200 1280 7909 90.3 90.5 82.1 94.7 81.8
2012 10520.660 1280 7891 89.8 89.8 82.4 93.6 82.3
2013 11019.470 1280 8247 94.1 94.1 82.9 98.3 83.0
2014 9075.070 1280 6894 78.7 78.7 82.7 80.9 82.9
2015 9331.900 1280 7140 81.5 81.5 82.7 83.2 82.9
2016 11288.140 1280 8599 97.9 97.9 83.2 100.4 83.5
2017 10109.920 1280 7715 88.1 88.1 83.4 90.2 83.8
2018 10306.360 1280 7881 90.0 90.2 83.6 91.9 84.0
2019 11515.330 1280 8760 100.0 100.0 84.2 102.7 84.6
2020 10409.820 1280 7965 90.7 90.7 84.4 92.6 84.9
2021 10097.710 1280 7915 90.4 90.4 84.5 90.1 85.0
2022 11593.440 1280 8760 100.0 100.0 85.0 103.4 85.6
2023 10372.140 1280 7932 90.6 90.7 85.2 92.5 85.8
Performance indicators are calculated from the Commercial Operation Date.


Above data generated by the PRIS database. Last update on 2025-02-15


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