Sumatra-Sibayak Geothermal Area

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Sumatra-Sibayak Geothermal Area

Area Overview

Geothermal Area Profile

Location: Sumatra, Indonesia

Exploration Region: Sunda Volcanic Arc - Great Sumatra Fault Zone

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: 3.2823504141585°, 98.508522507813°

Resource Estimate

Mean Reservoir Temp: 270°C543.15 K
518 °F
977.67 °R

Estimated Reservoir Volume: 8 km³8,000,000,000 m³
1.919 mi³
282,517,333,768 ft³
10,463,604,952 yd³
7,999,999,999,999.999 L

Mean Capacity: 12 MW12,000 kW
12,000,000 W
12,000,000,000 mW
0.012 GW
1.2e-5 TW

USGS Mean Reservoir Temp:

USGS Estimated Reservoir Volume:

USGS Mean Capacity:

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History and Infrastructure

Operating Power Plants: 1

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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  :
  • PT Dizamatra Powerindo

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:
  • "b" 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: 1000m1 km
0.621 mi
3,280.84 ft
1,093.61 yd

Depth to Bottom of Reservoir: 2000m2 km
1.243 mi
6,561.68 ft
2,187.22 yd

Average Depth to Reservoir: 1150m1.15 km
0.715 mi
3,772.966 ft
1,257.652 yd

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Geology of the Area

Geologic Setting

Tectonic Setting: Subduction Zone

Controlling Structure: Fault Intersection

Topographic Features: Caldera Depression

Brophy Model: Type C: Caldera Resource

Moeck-Beardsmore Play Type: CV-1a: Magmatic - Extrusive, CV-1b: Magmatic - Intrusive"CV-1a: Magmatic - Extrusive, CV-1b: Magmatic - Intrusive" is not in the list of possible values (CV-1a: Magmatic - Extrusive, CV-1b: Magmatic - Intrusive, CV-2a: Plutonic - Recent or Active Volcanism, CV-2b: Plutonic - Inactive Volcanism, CV-3: Extensional Domain, CD-1: Intracratonic Basin, CD-2: Orogenic Belt, CD-3: Crystalline Rock - Basement) for this property.

Geologic Features

Modern Geothermal Features: Fumaroles, Hot Springs, Warm or Steaming Ground

Relict Geothermal Features: Silicification

Volcanic Age:

Host Rock Age: Tertiary

Host Rock Lithology: Sandstone; Limestone

Cap Rock Age:

Cap Rock Lithology:

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Geofluid Geochemistry


Salinity (low):

Salinity (high):

Salinity (average):

Brine Constituents: Cl 800-1300ppm

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. Optimization Of Electrical Power Production Process For The Sibayak Geothermal Field, Indonesia
  2. Benjamin Matek. Geo-energy [Internet]. Geothermal Energy Association. [updated 2015/04/28;cited 2015/04/28]. Available from:
  3. 3.0 3.1 Numerical Modeling Study Of Sibayak Geothermal Reservoir, North Sumatra, Indonesia

List of existing Geothermal Resource Areas.

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