Details

Reactor Type Pressurised Water Reactor (or PWR)
Model W (4-loop)
Owner NRG Energy, Inc
Operator STP Nuclear Operating Co.

Timeline

Construction Start Monday, 22 December 1975
First Criticality Tuesday, 8 March 1988
First Grid Connection Wednesday, 30 March 1988
Commercial Operation Thursday, 25 August 1988

Specifications

Capacity Net 1280 MWe
Capacity Gross 1354 MWe
Thermal Capacity 3853 MWt
Design Net Capacity 1250 MWe

Operational History

Electricity Supplied (GWh)

Energy Availability Factor (%)

Total Electricity Supplied (GWh)

Reactor History

Year Reference Unit Power (MWe) Annual Time Online (Hours) Electricity Supplied (GWh) Operation Factor (%) Energy Availability Annual (%) Energy Availability Cumulative (%) Load Factor Annual (%) Load Factor Cumulative (%)
1988 1250 2404 2791.49 79.60 80.00 80.00 74.90 74.90
1989 1250 5524 6307.67 63.10 63.10 67.30 57.60 61.90
1990 1251 5198 6072.87 59.30 59.40 63.90 55.40 59.10
1991 1251 6069 7239.78 69.30 69.30 65.50 66.10 61.20
1992 1251 6033 7265.14 68.70 68.70 66.30 66.10 62.40
1993 1251 676 666.03 7.70 7.70 55.30 6.10 51.80
1994 1251 6842 8251.41 78.10 78.20 58.90 75.30 55.50
1995 1251 7570 9301.77 86.40 86.50 62.70 84.90 59.50
1996 1251 8213 10226.80 93.50 93.50 66.40 93.10 63.60
1997 1251 8019 9873.23 91.50 91.60 69.10 90.10 66.40
1998 1250 8739 10859.94 99.80 99.80 72.00 99.10 69.60
1999 1250 7857 9645.37 89.70 89.70 73.60 88.10 71.20
2000 1250 6905 8591.90 78.60 78.60 74.00 78.20 71.80
2001 1250 8240 10338.16 94.10 94.10 75.50 94.40 73.50
2002 1250 8573 10867.94 97.90 97.80 77.10 99.00 75.20
2003 1250 5433 6858.78 62.00 62.30 76.10 62.60 74.40
2004 1250 8712 11103.58 99.20 99.20 77.50 101.10 76.10
2005 1280 7845 9901.85 89.50 89.60 78.20 88.30 76.80
2006 1280 7942 10144.55 90.70 90.70 78.90 90.50 77.50
2007 1280 8760 11804.80 100.00 100.00 80.00 105.30 79.00
2008 1280 8108 10800.56 92.30 92.30 80.60 96.10 79.90
2009 1280 7582 10052.23 86.60 86.60 80.90 89.60 80.30
2010 1280 8588 11304.11 98.00 98.00 81.70 100.80 81.30
2011 1280 7909 10616.20 90.30 90.50 82.10 94.70 81.80
2012 1280 7891 10520.66 89.80 89.80 82.40 93.60 82.30
2013 1280 8247 11019.47 94.10 94.10 82.90 98.30 83.00
2014 1280 6894 9075.07 78.70 78.70 82.70 80.90 82.90
2015 1280 7140 9331.90 81.50 81.50 82.70 83.20 82.90
2016 1280 8599 11288.14 97.90 97.90 83.20 100.40 83.50
2017 1280 7715 10109.92 88.10 88.10 83.40 90.20 83.80
2018 1280 7881 10306.36 90.00 90.20 83.60 91.90 84.00
2019 1280 8760 11515.33 100.00 100.00 84.20 102.70 84.60
2020 1280 7965 10409.82 90.70 90.70 84.40 92.60 84.90
2021 1280 7915 10097.71 90.40 90.40 84.50 90.10 85.00
2022 1280 8760 11593.44 100.00 100.00 85.00 103.40 85.60
2023 1280 7932 10372.14 90.60 90.70 85.20 92.50 85.80

Source: Operating details - IAEA PRIS


See Also

Nuclear Power in United States

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