Fukushima Daiichi Nuclear Power Plant Reactor data Reactor data

| Unit | Type_ | Start_construction | First_criticality | Electric_power | Construction |
|---|---|---|---|---|---|
| Fukushima I – 1 | BWR -3 | July 25, 1967 | October 10, 1970 | 460 MW | Kajima |
| Fukushima I – 2 | BWR-4 | June 9, 1969 | May 10, 1973 | 784 MW | Kajima |
| Fukushima I – 3 | BWR-4 | December 28, 1970 | September 6, 1974 | 784 MW | Kajima |
| Fukushima I – 4 | BWR-4 | February 12, 1973 | January 28, 1978 | 784 MW | Kajima |
| Fukushima I – 5 | BWR-4 | May 22, 1972 | August 26, 1977 | 784 MW | Kajima |
| Fukushima I – 6 | BWR-5 | October 26, 1973 | March 9, 1979 | 1,100 MW | Kajima |