Tongonan Geothermal Field
E811948
Tongonan Geothermal Field is a major geothermal energy production area in Leyte, Philippines, known for supplying a significant portion of the country’s renewable power.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Leyte geothermal production field | 1 |
| Tongonan Geothermal Field canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9652547 — 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: Tongonan Geothermal Field Context triple: [Ormoc, hasGeothermalField, Tongonan Geothermal Field]
-
A.
Ngawha geothermal field
The Ngawha geothermal field is a significant low-enthalpy geothermal area in New Zealand known for its hot springs, geothermal power generation, and unique mineral-rich waters.
-
B.
Casa Diablo geothermal field
Casa Diablo geothermal field is a geothermal power and hot-spring area near California’s Long Valley Caldera that taps volcanic heat for energy production.
-
C.
Hell’s Gate geothermal reserve
Hell’s Gate geothermal reserve is a dramatic geothermal attraction near Rotorua in New Zealand, known for its boiling mud pools, steaming vents, and other intense volcanic features.
-
D.
Momotombo geothermal field
Momotombo geothermal field is a geothermal energy area in Nicaragua that harnesses heat from the Momotombo Volcano for electricity generation.
-
E.
Broadlands geothermal field
Broadlands geothermal field is a significant high-temperature geothermal area in New Zealand’s Taupō Volcanic Zone, known for its geothermal energy resources and associated power generation.
- 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: Tongonan Geothermal Field Target entity description: Tongonan Geothermal Field is a major geothermal energy production area in Leyte, Philippines, known for supplying a significant portion of the country’s renewable power.
-
A.
Ngawha geothermal field
The Ngawha geothermal field is a significant low-enthalpy geothermal area in New Zealand known for its hot springs, geothermal power generation, and unique mineral-rich waters.
-
B.
Casa Diablo geothermal field
Casa Diablo geothermal field is a geothermal power and hot-spring area near California’s Long Valley Caldera that taps volcanic heat for energy production.
-
C.
Hell’s Gate geothermal reserve
Hell’s Gate geothermal reserve is a dramatic geothermal attraction near Rotorua in New Zealand, known for its boiling mud pools, steaming vents, and other intense volcanic features.
-
D.
Momotombo geothermal field
Momotombo geothermal field is a geothermal energy area in Nicaragua that harnesses heat from the Momotombo Volcano for electricity generation.
-
E.
Broadlands geothermal field
Broadlands geothermal field is a significant high-temperature geothermal area in New Zealand’s Taupō Volcanic Zone, known for its geothermal energy resources and associated power generation.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
geothermal field
ⓘ
geothermal power production area ⓘ |
| containsFacility |
Kangasangan and related well pads
ⓘ
Mahanagdong geothermal power plant ⓘ Malitbog geothermal power plant ⓘ Tongonan I geothermal power plant ⓘ Tongonan II geothermal power plant ⓘ Upper Mahiao geothermal power plant ⓘ |
| contributesTo | Philippines’ status as one of the world’s top geothermal power producers ⓘ |
| conversionTechnology | steam turbines ⓘ |
| country | Philippines ⓘ |
| countryRankByCapacity | one of the largest geothermal fields in the Philippines ⓘ |
| countrySubdivision | Province of Leyte ⓘ |
| developmentStatus | fully developed geothermal field with multiple power plants ⓘ |
| energyForm | steam ⓘ |
| energyPolicyRole | key asset in Philippine renewable energy targets ⓘ |
| energySourceType | geothermal energy ⓘ |
| environmentalRole | low-carbon electricity generation ⓘ |
| exploitationMethod |
flash steam power plants
ⓘ
steam production from geothermal wells ⓘ |
| formerOperator |
Philippine National Oil Company – Energy Development Corporation
ⓘ
linked to:
Philippine National Oil Company
|
| geologicalSetting |
associated with Philippine Fault system
ⓘ
linked to:
Philippine Fault System
volcanic-tectonic environment ⓘ |
| globalRankByCapacity | among large geothermal developments worldwide ⓘ |
| gridConnection | transmission lines to the Visayas grid ⓘ |
| heatSourceType | magmatic ⓘ |
| locatedIn |
Eastern Visayas
ⓘ
Leyte ⓘ |
| locatedInCountry |
Republic of the Philippines
ⓘ
linked to:
Philippines
|
| locatedInMunicipality |
Kananga, Leyte
ⓘ
Ormoc, Leyte ⓘ |
| locatedOnIsland |
Leyte Island
ⓘ
linked to:
Leyte
|
| nearCity |
Ormoc City
ⓘ
Tacloban City ⓘ
linked to:
Tacloban
|
| operator | Energy Development Corporation ⓘ |
| ownershipType | commercial geothermal concession ⓘ |
| partOf | Philippine geothermal energy sector ⓘ |
| powerGenerationType | renewable energy ⓘ |
| region | Region VIII ⓘ |
| regulatoryJurisdiction |
Philippine Department of Energy
ⓘ
linked to:
Department of Energy of the Philippines
|
| resourceType | high-enthalpy geothermal reservoir ⓘ |
| servesArea |
Central Visayas
ⓘ
Eastern Visayas ⓘ |
| servesGrid |
Visayas grid
ⓘ
linked to:
Philippine power grid
|
| significance |
major source of geothermal power in the Philippines
ⓘ
supplies a significant portion of the Philippines’ renewable power ⓘ |
| usedFor |
baseload power supply
ⓘ
electricity generation ⓘ |
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: Tongonan Geothermal Field Description of subject: Tongonan Geothermal Field is a major geothermal energy production area in Leyte, Philippines, known for supplying a significant portion of the country’s renewable power.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.