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About PRIS
SIZEWELL B
Operational
Reactor Details
Reactor Type
Model
Owner
Operator
PWR
SNUPPS
EDF Energy
EDF Energy
Reference Unit Power (Net Capacity)
Design Net Capacity
Gross Capacity
Thermal Capacity
1198
MW
e
1188
MW
e
1250
MW
e
3425
MW
t
Construction Start Date
First Criticality Date
18 Jul, 1988
31 Jan, 1995
First Grid Connection
Commercial Operation Date
14 Feb, 1995
22 Sep, 1995
LifeTime Performance
Electricity Supplied
Energy Availability Factor
Operation Factor
Energy Unavailability Factor
Load Factor
224.33 TW.h
83.8 %
85.9 %
16.2 %
83.1 %
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
1995
0.000
1188
0
0.0
99.8
99.8
0.0
NC
1996
8488.470
1188
7367
83.9
81.4
85.1
81.3
65.0
1997
8469.810
1188
6992
79.6
81.5
83.5
81.2
72.2
1998
10123.090
1188
8705
99.1
97.4
87.8
97.0
79.8
1999
7959.010
1188
7134
81.2
76.5
85.1
76.3
79.0
2000
8527.180
1188
7612
86.7
81.6
84.5
81.7
79.5
2001
9197.960
1188
7784
88.6
77.2
83.3
88.1
80.9
2002
9195.040
1188
7862
89.8
88.5
84.0
88.4
81.9
2003
8854.190
1188
7613
86.9
88.7
84.6
85.1
82.3
2004
9329.110
1188
8685
98.9
89.4
85.1
89.4
83.1
2005
8696.250
1188
7476
85.3
83.9
85.0
83.6
83.1
2006
8908.260
1196
7570
86.4
85.2
85.0
85.2
83.3
2007
10264.310
1188
8760
100.0
98.5
86.1
98.5
84.5
2008
9301.230
1188
8097
92.2
89.2
86.3
89.1
84.9
2009
9094.880
1188
7863
89.8
87.4
86.4
87.4
85.1
2010
4774.800
1188
4032
46.0
45.6
83.7
45.9
82.5
2011
8627.400
1191
7463
85.2
82.5
83.7
82.7
82.5
2012
9346.240
1191
8348
95.0
89.2
84.0
89.3
82.9
2013
8714.720
1198
7612
86.9
83.0
83.9
83.0
82.9
2014
8828.140
1198
7589
86.6
84.1
84.0
84.1
83.0
2015
10507.340
1198
8760
100.0
99.9
84.7
100.1
83.8
2016
8626.700
1198
7280
82.9
81.9
84.6
82.0
83.7
2017
8804.750
1198
7353
83.9
83.7
84.6
83.9
83.7
2018
9388.120
1198
8039
91.8
89.2
84.8
89.5
84.0
2019
8452.100
1198
7175
81.9
80.5
84.6
80.5
83.8
2020
8393.470
1198
8743
99.5
79.5
84.4
79.8
83.7
2021
6709.390
1198
5689
64.9
64.2
83.6
63.9
82.9
2022
10357.170
1198
8676
99.0
98.5
84.2
98.7
83.5
2023
7676.680
1198
6566
75.0
73.4
83.8
73.2
83.1
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 2024-10-03
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HEYSHAM A-1
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HEYSHAM B-1
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SIZEWELL A-1
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TRAWSFYNYDD-1
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WINDSCALE AGR
WINFRITH SGHWR
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