THREE MILE ISLAND-1

Permanent Shutdown


Reactor Details

Reactor Type Model Owner Operator
PWR
B&W LLP (DRYAMB)
Exelon Corporation
Exelon Generation Co., LLC
Reference Unit Power (Net Capacity) Design Net Capacity Gross Capacity Thermal Capacity
819 MWe
819 MWe
880 MWe
2568 MWt
Construction Start Date First Criticality Date
18 May, 1968
05 Jun, 1974
First Grid Connection Commercial Operation Date
19 Jun, 1974
02 Sep, 1974
Permanent Shutdown Date
20 Sep, 2019

LifeTime Performance

Electricity Supplied Energy Availability Factor Operation Factor Energy Unavailability Factor Load Factor
245.12 TW.h
77.5 %
77.0 %
22.5 %
78.2 %
Lifetime performance calculated up to year 2019

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
1974 2450.200 792 3651 88.2 88.2 88.2 85.9 85.9
1975 5541.600 792 7198 82.2 79.7 81.8 79.9 81.4
1976 4344.400 792 5745 65.4 62.5 73.5 62.4 73.3
1977 5466.600 792 7087 80.9 78.7 75.1 78.8 74.9
1978 5681.900 788 7454 85.1 82.0 76.7 82.3 76.6
1979 888.700 776 1128 12.9 12.9 64.9 13.1 64.9
1980 0.000 776 0 0.0 0.0 54.8 0.0 54.8
1981 0.000 776 0 0.0 0.0 47.4 0.0 47.4
1982 0.000 776 0 0.0 0.0 41.8 0.0 41.8
1983 0.000 776 0 0.0 0.0 37.4 0.0 37.3
1984 0.000 776 0 0.0 0.0 33.8 0.0 33.7
1985 811.660 776 1853 21.2 37.8 34.1 11.9 31.8
1986 4818.260 776 6209 70.9 70.8 37.1 70.9 35.0
1987 5034.310 776 6351 72.5 72.5 39.7 74.1 37.9
1988 5465.430 808 6679 76.0 76.0 42.2 79.4 40.8
1989 7216.780 808 8714 99.5 99.5 46.1 102.0 44.9
1990 5316.180 808 7123 81.3 81.8 48.4 75.1 46.8
1991 5671.230 808 7536 86.0 86.4 50.6 80.1 48.8
1992 6936.510 786 8743 99.5 99.5 53.3 100.0 51.6
1993 5962.210 786 7702 87.9 88.0 55.1 86.6 53.4
1994 6590.900 786 8349 95.3 95.3 57.1 95.7 55.5
1995 6387.990 786 7926 90.5 90.5 58.6 92.8 57.2
1996 7100.260 786 8784 100.0 100.0 60.5 102.8 59.3
1997 5918.770 786 7633 87.1 87.3 61.6 86.0 60.4
1998 7059.200 786 8760 100.0 100.0 63.2 102.5 62.2
1999 6328.410 786 7827 89.4 89.4 64.2 91.9 63.3
2000 7144.930 786 8784 100.0 100.0 65.6 103.5 64.8
2001 5416.660 786 7034 80.3 80.3 66.1 78.7 65.4
2002 7313.520 802 8760 100.0 100.0 67.4 104.6 66.8
2003 6205.070 802 7602 86.8 86.7 68.0 88.3 67.5
2004 7273.320 802 8784 100.0 100.0 69.1 103.2 68.7
2005 6755.400 786 8145 93.0 93.0 69.9 98.1 69.6
2006 7227.030 786 8647 98.7 98.7 70.8 105.0 70.7
2007 6645.290 786 8034 91.7 91.7 71.4 96.5 71.5
2008 7365.100 786 8784 100.0 100.0 72.2 106.7 72.5
2009 5891.610 786 7152 81.6 81.7 72.5 85.6 72.9
2010 6633.750 805 8084 92.3 92.5 73.0 94.1 73.5
2011 6518.830 805 7975 91.0 91.0 73.5 92.4 74.0
2012 7038.260 819 8432 96.0 96.0 74.1 97.8 74.7
2013 6679.220 819 8064 92.0 92.0 74.6 93.1 75.2
2014 7308.910 819 8760 100.0 100.0 75.3 101.9 75.8
2015 6598.040 819 8028 91.6 91.6 75.7 92.0 76.2
2016 7082.650 819 8510 96.9 96.9 76.2 98.4 76.8
2017 6861.500 819 8239 94.0 94.0 76.6 95.6 77.2
2018 7335.820 819 8760 100.0 100.0 77.2 102.2 77.8
2019 5214.020 819 6299 99.8 99.8 77.5 100.9 78.2
Performance indicators are calculated from the Commercial Operation Date.


Above data generated by the PRIS database. Last update on 2024-09-10

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