Tiwi / Albay Geothermal Area

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Tiwi / Albay Geothermal Area

Area Overview

Geothermal Area Profile

Location: Tiwi, Phillipines

Exploration Region: Philippine Island Arc

GEA Development Phase: Operational"Operational" is not in the list of possible values (Phase I - Resource Procurement and Identification, Phase II - Resource Exploration and Confirmation, Phase III - Permitting and Initial Development, Phase IV - Resource Production and Power Plant Construction) for this property.

Coordinates: 13.434297317765°, 123.64661554883°

Resource Estimate

Mean Reservoir Temp: 320°C593.15 K
608 °F
1,067.67 °R

Estimated Reservoir Volume: 24 km³24,000,000,000 m³
5.758 mi³
847,552,001,304 ft³
31,390,814,856 yd³
24,000,000,000,000 L

Mean Capacity: 330 MW330,000 kW
330,000,000 W
330,000,000,000 mW
0.33 GW
3.3e-4 TW

USGS Mean Reservoir Temp:

USGS Estimated Reservoir Volume:

USGS Mean Capacity:

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History and Infrastructure

Operating Power Plants: 3

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Developing Power Projects: 0

No geothermal projects listed.

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Power Production Profile

Gross Production Capacity:

Net Production Capacity:

Owners  :
  • Chevron Geothermal Philippines Holdings

Power Purchasers :

Other Uses:

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Regulatory and Environmental Issues

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Exploration History

First Discovery Well

Completion Date:

Well Name:



Initial Flow Rate:
  • "f" is not declared as a valid unit of measurement for this property.
  • The given value was not understood.

Flow Test Comment:

Initial Temperature:

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Well Field Description

Well Field Information

Development Area:

Number of Production Wells:

Number of Injection Wells:

Number of Replacement Wells:

Average Temperature of Geofluid:

Sanyal Classification (Wellhead):

Reservoir Temp (Geothermometry):

Reservoir Temp (Measured):

Sanyal Classification (Reservoir):

Depth to Top of Reservoir: 900 m0.9 km
0.559 mi
2,952.756 ft
984.249 yd

Depth to Bottom of Reservoir: 2800 m2.8 km
1.74 mi
9,186.352 ft
3,062.108 yd

Average Depth to Reservoir: 1850 m1.85 km
1.15 mi
6,069.554 ft
2,023.179 yd

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Geology of the Area

Geologic Setting

Tectonic Setting: Subduction Zone

Controlling Structure:

Topographic Features: Shield Volcano

Brophy Model: Type B: Andesitic Volcanic Resource

Moeck-Beardsmore Play Type: CV-1a: Magmatic - Extrusive

Geologic Features

Modern Geothermal Features:

Relict Geothermal Features:

Volcanic Age:

Host Rock Age:

Host Rock Lithology: Andesite

Cap Rock Age:

Cap Rock Lithology: Smectite

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Geofluid Geochemistry


Salinity (low):

Salinity (high): 10000

Salinity (average):

Brine Constituents:

Water Resistivity:

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NEPA-Related Analyses (0)

Below is a list of NEPA-related analyses that have been conducted in the area - and logged on OpenEI. To add an additional NEPA-related analysis, see the NEPA Database.

CSV No NEPA-related documents listed.

Exploration Activities (0)

Below is a list of Exploration that have been conducted in the area - and cataloged on OpenEI. Add.png Add a new Exploration Activity

No exploration activities listed on OpenEI.


  1. 1.0 1.1 1.2 1.3 Ruggero Bertani. 2005. World Geothermal Power Generation 2001-2005. Proceedings of World Geothermal Congress; Turkey: World Geothermal Congress.

List of existing Geothermal Resource Areas.

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