Fukushima Daiichi Unit 1
E799461
Fukushima Daiichi Unit 1 is the first reactor unit at Japan’s Fukushima Daiichi Nuclear Power Plant and one of the units that suffered a major meltdown in the 2011 nuclear disaster.
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
boiling water reactor
ⓘ
nuclear reactor unit ⓘ |
| commercialOperationStartDate | 1971-03-26 ⓘ |
| constructionCompany | Kajima NERFINISHED ⓘ |
| constructionStartDate | 1967-07-25 ⓘ |
| containmentType | Mark I containment ⓘ |
| coolant | light water ⓘ |
| coolingLossCause | tsunami-induced station blackout ⓘ |
| coreDamageLevel | major core melt ⓘ |
| country | Japan ⓘ |
| decommissioningStatus | under decommissioning ⓘ |
| designBasisTsunamiHeight_m | approximately 5.7 ⓘ |
| designedBy | General Electric NERFINISHED ⓘ |
| electricalCapacity_MWe | 460 ⓘ |
| emergencyPowerSystem | diesel generators flooded and failed ⓘ |
| event |
2011 Tōhoku earthquake and tsunami
NERFINISHED
ⓘ
Fukushima Daiichi nuclear disaster NERFINISHED ⓘ |
| experienced |
core meltdown
ⓘ
hydrogen explosion ⓘ loss of off-site power ⓘ station blackout ⓘ |
| firstCriticalityDate | 1970-11-17 ⓘ |
| fuelRemovalFromSFPCompletionDate | 2021-02 ⓘ |
| fuelRemovalStatus | fuel removed from spent fuel pool ⓘ |
| fuelType | low-enriched uranium ⓘ |
| gridConnectionDate | 1970-11-17 ⓘ |
| gridConnectionStatus | disconnected from grid ⓘ |
| hydrogenExplosionDate | 2011-03-12 ⓘ |
| hydrogenExplosionEffect | severe damage to reactor building superstructure ⓘ |
| IAESeventClassification | part of INES Level 7 accident at Fukushima Daiichi ⓘ |
| locatedIn | Ōkuma, Fukushima Prefecture NERFINISHED ⓘ |
| moderator | light water ⓘ |
| netElectricalCapacity_MWe | 460 ⓘ |
| notableConsequence | large-scale radioactive release to environment ⓘ |
| operator |
TEPCO
NERFINISHED
ⓘ
Tokyo Electric Power Company NERFINISHED ⓘ |
| partOf | Fukushima Daiichi Nuclear Power Plant NERFINISHED ⓘ |
| plannedDecommissioningDuration_years | 30–40 ⓘ |
| primaryContainmentIntegrity | compromised during accident GENERATED ⓘ |
| reactorSupplier | General Electric NERFINISHED ⓘ |
| reactorType | BWR-3 ⓘ |
| regulator |
Nuclear Regulation Authority (post-2012)
NERFINISHED
ⓘ
Nuclear and Industrial Safety Agency of Japan (historical) NERFINISHED ⓘ |
| safetySystemFailure | loss of core cooling ⓘ |
| safetySystemType | emergency core cooling system ⓘ |
| shutdownDate | 2011-03-11 ⓘ |
| status | permanently shut down ⓘ |
| thermalCapacity_MWt | 1380 ⓘ |
| tsunamiHeightAtSite_m | approximately 13–15 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.