San Emidio Desert Geothermal Area
Area Overview
Geothermal Area Profile |
| Location: | Nevada | |
| Exploration Region: | Northwest Basin and Range Geothermal Region | |
| 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. |
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| Coordinates: | 40.3800°, -119.4000° | |
Resource Estimate |
| Mean Reservoir Temp: | 153°C 426.15 K 307.4 °F 767.07 °R |
[1] |
| Estimated Reservoir Volume: | 2.58 2.58 m³ 2.58e-9 km³ 6.189749e-10 mi³ 91.112 ft³ 3.375 yd³ |
[2] |
| Mean Capacity: | 14.22 MW 14,220 kW 14,220,000 W 14,220,000,000 mW 0.0142 GW 1.422e-5 TW |
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| USGS Mean Reservoir Temp: | 190°C 463.15 K 374 °F 833.67 °R |
[3] |
| USGS Estimated Reservoir Volume: | 7 km³ | [3] |
| USGS Mean Capacity: | 65 MW | [3] |
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History and Infrastructure
Operating Power Plants: 1 |
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Developing Power Projects: 1 |
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Power Production Profile |
| Gross Production Capacity: | ||
| Net Production Capacity: | ||
| Owners : |
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| 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: | ||
| Location: | ||
| Depth: | ||
| Initial Flow Rate: | ||
| 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: | 155°C 428.15 K 311 °F 770.67 °R |
[5]
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| Sanyal Classification (Wellhead): | Low Temperature | |
| Reservoir Temp (Geothermometry): | ||
| Reservoir Temp (Measured): | ||
| Sanyal Classification (Reservoir): | ||
| Depth to Top of Reservoir: | 518m 0.518 km 0.322 mi 1,699.475 ft 566.49 yd |
[1] |
| Depth to Bottom of Reservoir: | 1128m 1.128 km 0.701 mi 3,700.788 ft 1,233.592 yd |
[1] |
| Average Depth to Reservoir: | 823m 0.823 km 0.511 mi 2,700.131 ft 900.041 yd |
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Geology of the Area
Geologic Setting |
Geologic Features |
| Modern Geothermal Features: | ||
| Relict Geothermal Features: | Hydrothermal Alteration | |
| Volcanic Age: | No volcanism | |
| Host Rock Age: | ||
| Host Rock Lithology: | ||
| Cap Rock Age: | ||
| Cap Rock Lithology: | ||
San Emidio lies within the Basin and Range province of northwestern Nevada, ~100 km north of Reno. This area is dominated by middle to late Miocene volcanic rocks and late Miocene to recent sediments, all overlying Mesozoic metasedimentary rocks. Currently, a small power plant produces 2.3 MW from a 155°C reservoir at 520 m depth at the south end of an active fault system. Abundant altered rocks, native sulfur deposits, and boiling groundwater at depths
less than 100 m suggest, however, that the San Emidio geothermal resource extends several kilometers northward from the currently producing well field.
The San Emidio geothermal system appears to occupy a right step in a hard-linked, N-striking, W-dipping normal fault zone along the west flank of the northern Lake Range. Much of the hydrothermal activity is associated with a N-trending, W-dipping Holocene scarp. Abundant silicified fault and hydrothermal breccias, as well as open-space textures, are concentrated along the sinistral oblique-slip fault that links two strands of the N-striking normal fault zone within the right step. Kinematic features preserved in these silicified units indicate a WNW-trending slip direction, thus inducing minor dilation within the right-step of the northerly striking fault system. Minor dilation accompanied by high fault density within the right step likely produces the permeability necessary for deep fluid circulation within the San Emidio system.[6]
Geofluid Geochemistry
Geochemistry |
| Salinity (low): | 4000 | |
| Salinity (high): | 6000 | |
| Salinity (average): | ||
| Brine Constituents: | ||
| Water Resistivity: | ||
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NEPA-Related Analyses (5)
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.
Exploration Activities (0)
Below is a list of Exploration that have been conducted in the area - and cataloged on OpenEI.
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No exploration activities listed on OpenEI.
References
- ↑ 1.0 1.1 1.2 U.S Geothermal Provides Corporate Update [Internet]. 04/20/2012. U.S. Geothermal Inc.. [cited 2015/05/05]. Available from: http://www.sec.gov/Archives/edgar/data/1172136/000120445912000866/exhibit99-1.htm
- ↑ Geothermex Inc.. 2004. New Geothermal Site Identification and Qualification. Richmond, CA: California Energy Commission. Report No.: P500-04-051. Contract No.: 500-04-051.
- ↑ 3.0 3.1 3.2 U.S. Geological Survey. 2008. Assessment of Moderate- and High-Temperature Geothermal Resources of the United States. USA: U.S. Geological Survey. Report No.: Fact Sheet 2008-3082.
- ↑ Cite error: Invalid
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- ↑ Cite error: Invalid
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List of existing Geothermal Resource Areas.
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