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About PRIS
CHAPELCROSS-3
Permanent Shutdown
Reactor Details
Reactor Type
Model
Owner
Operator
GCR
MAGNOX
Nuclear Decommissioning Authority
MAGNOX, LTD
Reference Unit Power (Net Capacity)
Design Net Capacity
Gross Capacity
Thermal Capacity
48
MW
e
35
MW
e
60
MW
e
260
MW
t
Construction Start Date
First Criticality Date
01 Oct, 1955
31 Aug, 1959
First Grid Connection
Commercial Operation Date
01 Nov, 1959
01 Dec, 1959
Permanent Shutdown Date
29 Jun, 2004
LifeTime Performance
Electricity Supplied
Energy Availability Factor
Operation Factor
Energy Unavailability Factor
Load Factor
14.20 TW.h
87.2 %
94.2 %
12.8 %
85.5 %
Lifetime performance calculated up to year
1996
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
1959
Data Not Provided
1960
"
1961
"
1962
"
1963
"
1964
"
1965
"
1966
"
1967
"
1968
"
1969
"
1970
"
1971
466.230
60
8760
100.0
88.7
NC
88.7
NC
1972
482.520
60
8784
100.0
91.5
NC
91.6
NC
1973
391.680
50
8760
100.0
92.5
NC
89.4
NC
1974
389.500
50
8760
100.0
93.1
NC
88.9
NC
1975
374.750
50
8757
100.0
91.1
NC
85.6
NC
1976
380.900
48
8072
91.9
90.4
NC
90.3
NC
1977
344.050
48
7408
84.6
81.0
NC
81.8
NC
1978
356.100
48
7616
86.9
84.7
NC
84.7
NC
1979
329.500
48
6959
79.7
78.9
NC
78.6
NC
1980
324.000
48
6790
77.3
76.8
NC
76.8
NC
1981
328.500
48
7091
81.0
78.1
NC
78.1
NC
1982
344.250
48
7475
85.3
81.9
86.0
81.9
85.0
1983
358.000
49
7727
88.2
85.3
85.9
83.4
84.8
1984
330.250
48
6991
79.6
78.3
85.4
78.3
84.4
1985
356.600
48
8365
95.5
88.0
85.6
84.8
84.4
1986
362.820
48
8760
100.0
88.3
85.7
86.3
84.5
1987
367.800
48
8760
100.0
89.6
86.0
87.5
84.7
1988
359.350
48
8784
100.0
88.3
86.1
85.2
84.7
1989
342.050
48
8760
100.0
85.9
86.1
81.4
84.6
1990
356.880
48
8760
100.0
89.2
86.2
84.9
84.6
1991
339.230
48
8760
100.0
85.0
86.2
80.7
84.4
1992
360.650
48
8784
100.0
87.9
86.2
85.5
84.4
1993
380.230
48
8760
100.0
92.5
86.5
90.4
84.7
1994
387.950
48
8760
100.0
93.1
86.8
92.3
85.0
1995
385.930
48
8760
100.0
93.1
87.0
91.8
85.3
1996
389.400
48
8784
100.0
93.2
87.2
92.4
85.5
1997
Data Not Provided
1998
"
1999
"
2000
"
2001
"
2002
"
2003
"
2004
"
Performance indicators are calculated from the Commercial Operation Date.
NC – cumulative values not calculated when more than 50% of required data is missing in PRIS
Above data generated by the PRIS database. Last update on 2024-09-10
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UNITED KINGDOM
BERKELEY-1
BERKELEY-2
BRADWELL-1
BRADWELL-2
CALDER HALL-1
CALDER HALL-2
CALDER HALL-3
CALDER HALL-4
CHAPELCROSS-1
CHAPELCROSS-2
CHAPELCROSS-3
CHAPELCROSS-4
DOUNREAY DFR
DOUNREAY PFR
DUNGENESS A-1
DUNGENESS A-2
DUNGENESS B-1
DUNGENESS B-2
HARTLEPOOL A-1
HARTLEPOOL A-2
HEYSHAM A-1
HEYSHAM A-2
HEYSHAM B-1
HEYSHAM B-2
HINKLEY POINT A-1
HINKLEY POINT A-2
HINKLEY POINT B-1
HINKLEY POINT B-2
HINKLEY POINT C-1
HINKLEY POINT C-2
HUNTERSTON A-1
HUNTERSTON A-2
HUNTERSTON B-1
HUNTERSTON B-2
OLDBURY A-1
OLDBURY A-2
SIZEWELL A-1
SIZEWELL A-2
SIZEWELL B
TORNESS-1
TORNESS-2
TRAWSFYNYDD-1
TRAWSFYNYDD-2
WINDSCALE AGR
WINFRITH SGHWR
WYLFA-1
WYLFA-2