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About PRIS
ZION-1
Permanent Shutdown
Reactor Details
Reactor Type
Model
Owner
Operator
PWR
WH 4LP
Exelon Generation Co., LLC
Exelon Generation Co., LLC
Reference Unit Power (Net Capacity)
Design Net Capacity
Gross Capacity
Thermal Capacity
1040
MW
e
1040
MW
e
1085
MW
e
3250
MW
t
Construction Start Date
First Criticality Date
01 Dec, 1968
19 Jun, 1973
First Grid Connection
Commercial Operation Date
28 Jun, 1973
31 Dec, 1973
Permanent Shutdown Date
13 Feb, 1998
LifeTime Performance
Electricity Supplied
Energy Availability Factor
Operation Factor
Energy Unavailability Factor
Load Factor
124.41 TW.h
62.3 %
63.9 %
37.7 %
57.4 %
Lifetime performance calculated up to year
1998
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
1973
705.900
880
1717
1974
3489.200
880
5167
59.0
59.0
59.0
45.3
45.3
1975
4917.500
867
6121
69.9
65.0
62.0
64.8
54.9
1976
4773.500
931
5454
62.1
56.5
60.1
58.4
56.1
1977
5034.000
1010
6494
74.1
56.9
59.2
56.9
56.3
1978
6769.800
1040
7020
80.1
74.3
62.5
74.3
60.3
1979
5537.300
1040
5962
68.1
60.8
62.2
60.8
60.4
1980
6514.400
1040
7165
81.6
81.8
65.2
71.3
62.0
1981
6192.700
1040
6294
71.8
72.0
66.1
68.0
62.8
1982
4728.400
1040
5172
59.0
59.2
65.3
51.9
61.6
1983
4030.100
1040
5740
65.5
65.7
65.3
44.2
59.7
1984
5692.090
1040
6027
68.6
68.7
65.6
62.3
60.0
1985
4834.820
1040
5106
58.3
58.3
65.0
53.1
59.4
1986
4915.210
1040
5450
62.2
62.2
64.8
54.0
59.0
1987
6067.140
1040
6481
74.0
74.0
65.5
66.6
59.5
1988
6347.300
1040
6605
75.2
75.2
66.2
69.5
60.2
1989
4999.460
1040
5149
58.8
58.8
65.7
54.9
59.9
1990
4446.520
1040
4746
54.2
54.2
65.0
48.8
59.2
1991
4260.390
1040
4593
52.4
52.5
64.3
46.8
58.5
1992
4111.830
1040
4310
49.1
49.1
63.4
45.0
57.8
1993
7020.980
1040
6966
79.5
79.5
64.3
77.1
58.8
1994
4147.270
1040
4175
47.7
47.7
63.5
45.5
58.1
1995
6469.120
1040
6295
71.9
71.9
63.9
71.0
58.7
1996
7328.770
1040
7167
81.6
81.6
64.6
80.2
59.7
1997
1079.320
1040
1238
14.1
14.0
62.5
11.8
57.6
1998
0.000
1040
0
0.0
0.0
62.3
0.0
57.4
Performance indicators are calculated from the Commercial Operation Date.
Above data generated by the PRIS database. Last update on 2025-04-22
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