Tepco’s BWR fleet
Reactor name Reactor model Capacity (MWe) Start of commercial
operation Fukushima Daiichi 1 BWR3 460
1971 Fukushima Daiichi 2 BWR4 784
1974 Fukushima Daiichi 3 BWR4 784
1976 Fukushima Daiichi 4 BWR4 784
1978 Fukushima Daiichi 5 BWR4 784
1978 Fukushima Daiichi 6 BWR5 1100
1979 Fukushima Daini 1 BWR5 1100
1982 Fukushima Daini 2 BWR5* 1100
1984 Fukushima Daini 3 BWR5* 1100
1985 Fukushima Daini 4 BWR5* 1100
1987 Kashiwazaki-Kariwa 1 BWR5 1100
1985 Kashiwazaki-Kariwa 2 BWR5* 1100
1990 Kashiwazaki-Kariwa 3 BWR5* 1100
1993 Kashiwazaki-Kariwa 4 BWR5* 1100
1994 Kashiwazaki-Kariwa 5 BWR5* 1100
1990 Kashiwazaki-Kariwa 6 ABWR 1356
1996 Kashiwazaki-Kariwa 7 ABWR 1356
1997BWR5* = BWR5 with improved containment