Mak–Ban Geothermal Power Plant
geothermal power station complex in Laguna and Batangas, Philippines

The Makiling–Banahaw (Mak–Ban) Geothermal Power Plant is a 458-MW geothermal power station complex in Laguna and Batangas, Philippines.
The facility and the geothermal field are named after Makiling and Banahaw mountains.
History
The Makiling–Banahaw (Mak–Ban) Geothermal Power Plant was developed to harness the geothermal resources of the Mak–Ban or Bulalo field. The Chevron Geothermal Philippine Holdings, Inc., under a service contract with the state-owned National Power Corporation (NPC) commissioned the geothermal station field in 1979. The Mak–Ban facility was developed after the Tiwi facility in Albay which first became operational in the same year.
In 2005, The Philippine government decided to sell the Mak—Ban facility to private investors through the state-owned Power Sector Assets & Liabilities Management Corp. (PSALM). Due to changes in the bidding procedures, the geothermal station was not sold until 2008. Aboitiz Power, through their subsidiary AP Renewables Inc., took over the plant in 2009.
“Mak–Ban Geothermal Power Plant” enters the record as geothermal power station complex in Laguna and Batangas, Philippines. Crown Archives preserves that source wording while asking what Geothermal, Power and Plant can confirm, complicate or overturn.
Why this record matters
“Mak–Ban Geothermal Power Plant” is worth following because a concise public description often conceals a longer documentary argument. Here, Geothermal, Power and Plant provides the most credible route into that argument.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Feb 15, 2026. The linked authority identifier is Q118900615. Authority coordinates are 14.091, 121.219. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1979, 2005, 2008 and 2009.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Mak–Ban Geothermal Power Plant”, its source revision and the description used here.
- Expand the search: follow Mak–Ban Geothermal Power Plant primary sources, Mak–Ban Geothermal Power Plant archive and Geothermal research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Mak–Ban Geothermal Power Plant”?
- Which authority defined the place, boundary or structure at the relevant date?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “Mak–Ban Geothermal Power Plant” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.