Pico Vermelho-Ribeira Grande Geothermal Area

From Open Energy Information

Area Overview

Geothermal Area Profile

Location: Azores, Portugal

Exploration Region: Mid Atlantic Ridge

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: 37.7967°, -25.5028°

Resource Estimate

Mean Reservoir Temp: 238°C
511.15 K
460.4 °F
920.07 °R

Estimated Reservoir Volume: 3.3 km³
3,300,000,000 m³
0.792 mi³
116,538,400,179.3 ft³
4,316,237,042.7 yd³
3,300,000,000,000 L

Mean Capacity: 28.5 MW
28,500 kW
28,500,000 W
28,500,000,000 mW
0.0285 GW
2.85e-5 TW

USGS Mean Reservoir Temp:

USGS Estimated Reservoir Volume:

USGS Mean Capacity:

Use the "Edit With Form" menu option to add content

History and Infrastructure

Operating Power Plants: 2

Add a new Operating Power Plant

Developing Power Projects: 0

No geothermal projects listed.

Add a new Developing Power Project

Power Production Profile

Gross Production Capacity: 21.2 MW
21,200 kW
21,200,000 W
21,200,000,000 mW
0.0212 GW
2.12e-5 TW

Net Production Capacity:

Owners  :

Power Purchasers :

Other Uses:

Use the "Edit With Form" menu option to add content

Regulatory and Environmental Issues

Use the "Edit With Form" menu option to add content

Exploration History

First Discovery Well

Completion Date:

Well Name:



Initial Flow Rate:

Flow Test Comment:

Initial Temperature:

Use the "Edit With Form" menu option to add content

Well Field Description

Well Field Information

Development Area:

Number of Production Wells:

Number of Injection Wells:

Number of Replacement Wells:

Average Temperature of Geofluid: 240°C
513.15 K
464 °F
923.67 °R

Sanyal Classification (Wellhead):

Reservoir Temp (Geothermometry):

Reservoir Temp (Measured):

Sanyal Classification (Reservoir):

Depth to Top of Reservoir: 800 m
0.8 km
0.497 mi
2,624.672 ft
874.888 yd

Depth to Bottom of Reservoir: 1300 m
1.3 km
0.808 mi
4,265.092 ft
1,421.693 yd

Average Depth to Reservoir: 1050 m
1.05 km
0.652 mi
3,444.882 ft
1,148.291 yd

Use the "Edit with Form" button at the top of the page to add a Well Field Description

Geology of the Area

Geologic Setting

Tectonic Setting: Rift Zone

Controlling Structure:

Topographic Features:

Brophy Model: Type F: Oceanic-ridge, Basaltic Resource

Moeck-Beardsmore Play Type: CV-1a: Magmatic - Extrusive, CV-3: Extensional Domain
"CV-1a: Magmatic - Extrusive, CV-3: Extensional Domain" 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

Relict Geothermal Features:

Volcanic Age: Recent

Host Rock Age:

Host Rock Lithology: Basalt

Cap Rock Age:

Cap Rock Lithology: Clay

Use the "Edit With Form" menu option to add content

Geofluid Geochemistry


Salinity (low): 6000

Salinity (high): 7000

Salinity (average): 6500 [3]

Brine Constituents: Sodium chloride type (Rangel et. al., 2011). See table 1 (Gandino et. al., 1985) [4]

Water Resistivity:

Use the "Edit With Form" menu option to add content

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 M. R. Carvalho,V. H. Forjaz,C. Almeida. 2006. Chemical Composition Of Deep Hydrothermal Fluids In The Ribeira Grande Geothermal Field (Sao Miguel, Azores). Journal of Volcanology and Geothermal Research. (!) .
  2. Benjamin Matek. Geo-energy [Internet]. Geothermal Energy Association. [updated 2015/04/28;cited 2015/04/28]. Available from: http://geo-energy.org/
  3. Preliminary Model of the Ribeira Grande Geothermal Field (Azores Islands)
  4. Use of Geothermal Resources in the Azores Islands: A Contribution to the Energy Self-Sufficiency of a Remote and Isolated Region

List of existing Geothermal Resource Areas.