Olkaria Geothermal Area

GEOTHERMAL ENERGY

Area Overview

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Geothermal Area Profile

Location:	Nairobi, Kenya
Exploration Region:	East African Rift System - Kenya Rift
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:	-1.0225°, 36.4742°

Resource Estimate

Mean Reservoir Temp:	275°C 548.15 K 527 °F 986.67 °R
Estimated Reservoir Volume:	57.2 km³ 57,200,000,000 m³ 13.723 mi³ 2,019,998,936,441.2 ft³ 74,814,775,406.8 yd³ 57,200,000,000,000 L
Mean Capacity:	602 MW 602,000 kW 602,000,000 W 602,000,000,000 mW 0.602 GW 6.02e-4 TW
USGS Mean Reservoir Temp:
USGS Estimated Reservoir Volume:
USGS Mean Capacity:

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History and Infrastructure

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Operating Power Plants: 6

Olkaria I Geothermal Power Plant Olkaria I – Modular/ Wellhead Geothermal Power Plant Olkaria II Geothermal Power Plant Olkaria III Geothermal Power Plant Oserian 202 Geothermal Power Plant Oserian 306 Geothermal Power Plant

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Developing Power Projects: 0

No geothermal projects listed.

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Power Production Profile

Gross Production Capacity:	265 MW 265,000 kW 265,000,000 W 265,000,000,000 mW 0.265 GW 2.65e-4 TW
Net Production Capacity:
Owners  :	KenGen Ormat Technologies Inc Oserian Development Company
Power Purchasers :	Kenya Power and Lighting Company Limited
Other Uses:

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Regulatory and Environmental Issues

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Exploration History

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First Discovery Well

Completion Date:
Well Name:
Location:
Depth:
Initial Flow Rate:
Flow Test Comment:
Initial Temperature:

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Well Field Description

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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:	500m 0.5 km 0.311 mi 1,640.42 ft 546.805 yd
Depth to Bottom of Reservoir:	2700m 2.7 km 1.678 mi 8,858.268 ft 2,952.747 yd
Average Depth to Reservoir:	1600m 1.6 km 0.994 mi 5,249.344 ft 1,749.776 yd

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Geology of the Area

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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:
Relict Geothermal Features:
Volcanic Age:
Host Rock Age:
Host Rock Lithology:
Cap Rock Age:
Cap Rock Lithology:

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Geofluid Geochemistry

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Geochemistry

Salinity (low):
Salinity (high):
Salinity (average):
Brine Constituents:
Water Resistivity:

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NEPA-Related Analyses (0)

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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)

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

No exploration activities listed on OpenEI.

References

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List of existing Geothermal Resource Areas.

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