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MAGAT

Hydro power plant in Cordillera, Philippines. Approximate location 16.8293, 121.4537.

HydroCordilleraPhilippinesconventional storage

MAGAT is a 380 MW hydro power station in Cordillera, Philippines. It is operated by SN Aboitiz Power-Magat CO LTD. Based on its capacity (estimated), it can supply roughly 380k homes (estimated). It ranks #46 of 186 Philippines power plants by installed capacity. Commissioned in 1983, it is around 43 years old — long-established. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 10.3% of Philippines's electricity; the national grid averages 588 gCO₂/kWh (23.3% low-carbon) (2025).

380Source-backed capacity
380,434homes powered (est.)
1983commissioned (~43 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1001897.

Data status

Known data

FacilityMAGAT WRI
CountryPhilippines · Cordillera WRI
Coordinates16.8293, 121.4537 WRI
FuelHydro WRI
MW installed capacity380 MW WRI source record; scope not independently normalised
OwnerSN Aboitiz Power-Magat CO LTD WRI
Commissioned1983 WRI
Technologyconventional storage WRI

Calculated from dataset

Capacity rank in country#46 of 186 calculated
Fuel-specific rank in country#3 of 17 calculated
Capacity vs country/fuel peers2.53× · 150 MW median · 17 peers calculated
Homes-powered equivalent380,434 calculated
Climate26.7°C · HDD 0 derived from coordinates
Environmental severityC4 · 42/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset
CO₂ emissionsnot applicable not applicable

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: GEM tracker 2026 (location L100000603162); fuel: WRI source-record fuel

In context: how this plant compares

At 380 MW, MAGAT is well above the median hydro plant in Philippines (150 MW). Technically it is described as conventional storage. Hydropower converts the energy of falling or flowing water into electricity; output depends on rainfall and reservoir level, and large dams also provide grid balancing and storage.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Capacity vs largest hydro plants in Philippines

KALAYAAN PSPP: 739 MW739KALAYAAN P…SAN ROQUE: 435 MW435SAN ROQUEMAGAT: 380 MW380MAGATAGUS 5: 309 MW309AGUS 5PULANGI 4: 255 MW255PULANGI 4ANGAT: 218 MW218ANGATAGUS 2: 180 MW180AGUS 2AGUS 4: 158 MW158AGUS 4

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by SN Aboitiz Power-Magat CO LTD.

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a tropical monsoon climate (Köppen Am) — Northern Hemisphere, latitude 16.8°N — which shapes how much energy it can produce and how its output varies through the year.

26.7°Cannual mean temp
0heating degree-days (base 18°C)
3,186cooling degree-days (base 18°C)
86 melevation

Monthly mean temperature

J: 24 °CJF: 24 °CFM: 26 °CMA: 28 °CAM: 29 °CMJ: 29 °CJJ: 28 °CJA: 28 °CAS: 28 °CSO: 27 °CON: 26 °CND: 24 °CD29 °C

This site has effectively no heating season (tropical/equatorial climate), so winter heat loss is not the driver here. The thermal concern shifts to year-round process heat and humidity/heat-driven corrosion of hot equipment.

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

Site climate & environmental severity

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
42/100environmental-severity index
5.3°Cseasonal temperature swing
85 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby plants

The #3 largest hydro power plant of 17 in Philippines by capacity.

Philippines has 17 hydro power plants in this dataset, together about 3,412 MW of capacity.

Nearby power plants

Location

Coordinates 16.8293, 121.4537 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is MAGAT?

MAGAT is a 380 MW source-record hydro power plant in Cordillera, Philippines, commissioned in 1983.

How many homes can MAGAT power?

Its output is enough to supply roughly 380,434 homes (estimated).

Who operates MAGAT?

MAGAT is operated by SN Aboitiz Power-Magat CO LTD.

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