Forsmark Nuclear Power Plant in Sweden
E414461
Forsmark Nuclear Power Plant in Sweden is a major Swedish nuclear facility on the Baltic coast, notable for being the site where elevated radiation levels first alerted the world to the Chernobyl disaster in 1986.
All labels observed (7)
| Label | Occurrences |
|---|---|
| Forsmark | 2 |
| Forsmark 1 | 1 |
| Forsmark 2 | 1 |
| Forsmark 3 | 1 |
| Forsmark Nuclear Power Plant (stake) | 1 |
| Forsmark Nuclear Power Plant in Sweden canonical | 1 |
| Forsmark nuclear power plant | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4136924 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Forsmark Nuclear Power Plant in Sweden Context triple: [Chernobyl disaster, firstInternationalDetection, Forsmark Nuclear Power Plant in Sweden]
-
A.
Ascó Nuclear Power Plant
Ascó Nuclear Power Plant is a major Spanish nuclear power facility located in Catalonia that generates electricity using pressurized water reactors.
-
B.
Chernobyl Nuclear Power Plant
The Chernobyl Nuclear Power Plant was a Soviet-era nuclear power station in northern Ukraine, infamous for the catastrophic 1986 reactor explosion that caused one of the worst nuclear disasters in history.
-
C.
Kalinin nuclear power plant
The Kalinin nuclear power plant is a major Russian nuclear power facility that supplies electricity to the central regions of the country.
-
D.
Flamanville 3 nuclear power plant
Flamanville 3 nuclear power plant is a French EPR (European Pressurized Reactor) project on the Normandy coast, known for its advanced reactor design, major construction delays, and significant cost overruns.
-
E.
Salem Nuclear Power Plant
Salem Nuclear Power Plant is a commercial nuclear power station in Lower Alloways Creek Township, New Jersey, that generates electricity using pressurized water reactors along the Delaware River.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Forsmark Nuclear Power Plant in Sweden Target entity description: Forsmark Nuclear Power Plant in Sweden is a major Swedish nuclear facility on the Baltic coast, notable for being the site where elevated radiation levels first alerted the world to the Chernobyl disaster in 1986.
-
A.
Ascó Nuclear Power Plant
Ascó Nuclear Power Plant is a major Spanish nuclear power facility located in Catalonia that generates electricity using pressurized water reactors.
-
B.
Chernobyl Nuclear Power Plant
The Chernobyl Nuclear Power Plant was a Soviet-era nuclear power station in northern Ukraine, infamous for the catastrophic 1986 reactor explosion that caused one of the worst nuclear disasters in history.
-
C.
Kalinin nuclear power plant
The Kalinin nuclear power plant is a major Russian nuclear power facility that supplies electricity to the central regions of the country.
-
D.
Flamanville 3 nuclear power plant
Flamanville 3 nuclear power plant is a French EPR (European Pressurized Reactor) project on the Normandy coast, known for its advanced reactor design, major construction delays, and significant cost overruns.
-
E.
Salem Nuclear Power Plant
Salem Nuclear Power Plant is a commercial nuclear power station in Lower Alloways Creek Township, New Jersey, that generates electricity using pressurized water reactors along the Delaware River.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
electric power station
ⓘ
nuclear power plant ⓘ nuclear reactor ⓘ nuclear reactor ⓘ nuclear reactor ⓘ |
| commissioned |
1980
ⓘ
1981 ⓘ 1985 ⓘ |
| constructionStart | 1970s ⓘ |
| coolingSource | Baltic Sea ⓘ |
| coordinates | approximately 60.4°N 18.2°E ⓘ |
| country | Sweden ⓘ |
| county | Uppsala County ⓘ |
| designedBy |
ASEA
ⓘ
surface form:
ASEA-Atom
|
| distanceFromStockholm | about 140 km north of Stockholm ⓘ |
| fuelType | low-enriched uranium ⓘ |
| gridConnection | Nordic synchronous grid ⓘ |
| gridConnectionVoltage | 400 kV transmission network ⓘ |
| gridRole | major baseload electricity supplier in Sweden ⓘ |
| locatedOn |
Baltic Sea coast region
ⓘ
surface form:
Baltic Sea coast
|
| location |
Forsmark Nuclear Power Plant in Sweden
self-linksurface differs
ⓘ
surface form:
Forsmark
|
| municipality | Östhammar Municipality ⓘ |
| nearbyFacility |
SFR Final Repository for Short-lived Radioactive Waste
ⓘ
proposed Swedish spent nuclear fuel repository site ⓘ |
| netElectricalCapacity |
approximately 1,000 MW
ⓘ
approximately 1,200 MW ⓘ approximately 990 MW ⓘ |
| notableEvent | detection of elevated radiation from Chernobyl accident ⓘ |
| notableEventDate | 28 April 1986 ⓘ |
| numberOfReactors | 3 ⓘ |
| operatedBy | Vattenfall ⓘ |
| operatorCountry | Sweden ⓘ |
| ownedBy | Vattenfall ⓘ |
| reactor |
Forsmark Nuclear Power Plant in Sweden
self-linksurface differs
ⓘ
surface form:
Forsmark 1
Forsmark Nuclear Power Plant in Sweden self-linksurface differs ⓘ
surface form:
Forsmark 2
Forsmark Nuclear Power Plant in Sweden self-linksurface differs ⓘ
surface form:
Forsmark 3
|
| reactorModel | ABB Atom BWR ⓘ |
| reactorType | boiling water reactor ⓘ |
| regulator | Swedish Radiation Safety Authority ⓘ |
| roleInChernobylDetection | first site outside Soviet Union to detect abnormal radiation levels ⓘ |
| safetyIncident | 2006 electrical disturbance event ⓘ |
| safetySystem | multiple redundant safety systems ⓘ |
| status | operational ⓘ |
| totalNetElectricalCapacity | about 3,300 MW ⓘ |
| website | https://www.vattenfall.se/forsmark ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Forsmark Nuclear Power Plant in Sweden Description of subject: Forsmark Nuclear Power Plant in Sweden is a major Swedish nuclear facility on the Baltic coast, notable for being the site where elevated radiation levels first alerted the world to the Chernobyl disaster in 1986.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Östhammar Municipality
this entity surface form:
Forsmark
this entity surface form:
Forsmark nuclear power plant
this entity surface form:
Forsmark Nuclear Power Plant (stake)
Forsmark Nuclear Power Plant in Sweden
→
location
→
Forsmark Nuclear Power Plant in Sweden
self-linksurface differs
ⓘ
subject surface form:
Forsmark Nuclear Power Plant
this entity surface form:
Forsmark
Forsmark Nuclear Power Plant in Sweden
→
reactor
→
Forsmark Nuclear Power Plant in Sweden
self-linksurface differs
ⓘ
subject surface form:
Forsmark Nuclear Power Plant
this entity surface form:
Forsmark 1
Forsmark Nuclear Power Plant in Sweden
→
reactor
→
Forsmark Nuclear Power Plant in Sweden
self-linksurface differs
ⓘ
subject surface form:
Forsmark Nuclear Power Plant
this entity surface form:
Forsmark 2
Forsmark Nuclear Power Plant in Sweden
→
reactor
→
Forsmark Nuclear Power Plant in Sweden
self-linksurface differs
ⓘ
subject surface form:
Forsmark Nuclear Power Plant
this entity surface form:
Forsmark 3