| Description |
1 online resource (12 pages) : color illustrations. |
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text txt rdacontent |
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computer c rdamedia |
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online resource cr rdacarrier |
| Series |
NREL/CP ; 5500-75267 |
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Conference paper (National Renewable Energy Laboratory (U.S.)) ; 5500-75267.
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| Note |
"September 2021." |
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"Funding provided by the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Geothermal Energy Technologies Office"--Title page verso. |
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"Presented at the World Geothermal Congress 2020, April 26-May 2, 2020"--Cover. |
| Bibliography |
Includes bibliographical references (page 11). |
| Funding |
DE-AC36-08GO28308 |
| Note |
Description based on online resource; title from PDF title page (NREL, viewed February 14, 2021). |
| Summary |
The Geothermal Resource Portfolio Optimization and Reporting Technique (GeoRePORT) was developed with funding from the U.S. Department of Energy Geothermal Technologies Office to assist in identifying and pursuing long-term investment strategies through the development of a resource reporting protocol. The assessment protocols used in GeoRePORT allow for comparison of project attributes across locations and geological settings to understand the feasibility of geothermal development. This work introduces the Resource Size Tool, a new feature within the GeoRePORT package that compiles two independent methods for estimating geothermal resource size in terms of energy capacity in MW. Energy production potential for twenty-three case studies was estimated with the Resource Size Tool in order to 1) generate a reasonable range of resource size estimates for a particular geothermal field; 2) illustrate the advantages and limitations of each methodology (such as data input requirements, estimate accuracy and precision, and the appropriate circumstances of use); and 3) test the ability of the resource size tool to provide useful and accurate information for geothermal stakeholders. The tool employs two methods widely used in the geothermal industry: (1) USGS Volumetric and (2) Power Density. Results from our case studies show general overlap between these two methods in terms of resource size estimates; however, they also reveal key differences between the two approaches that should be considered when using such estimates to drive development. First, the two methods rely on different input parameters and therefore one method may be more appropriate and/or accurate for a given project than the other. Second, the Power Density method was found to generate wider ranges of resource size predictions, more consistently aligning with actual power production of the field but with larger scales of error; whereas the USGS Volumetric method predicts narrower ranges but tends to overestimate when compared to current MW production. Future work will refine variables used in the methods with input data from other sections of GeoRePORT and modify uncertainty levels based on the particular datasets used for a given project. |
| Subject |
Geothermal resources -- United States -- Computer programs.
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Information storage and retrieval systems -- Geothermal resources.
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Énergie géothermique -- États-Unis -- Logiciels.
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Systèmes d'information -- Énergie géothermique.
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Geothermal resources -- Computer programs.
(OCoLC)fst00941167
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Information storage and retrieval systems -- Geothermal resources.
(OCoLC)fst02026373
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United States. (OCoLC)fst01204155 https://id.oclc.org/worldcat/entity/E39PBJtxgQXMWqmjMjjwXRHgrq
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| Indexed Term |
geological |
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GeoRePORT |
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geothermal |
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geothermal resource capacity |
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geothermal resource size |
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heat loss |
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heat-in-place |
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power density |
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socio-economic |
| Added Author |
National Renewable Energy Laboratory (U.S.), issuing body.
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United States. Department of Energy. Office of Energy Efficiency and Renewable Energy, sponsoring body.
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| Added Title |
Introducing the Geothermal Resource Portfolio Optimization and Reporting Technique resource size tool |
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Reporting on geothermal resource size estimations using the Geothermal Resource Portfolio Optimization and Reporting Technique (GeoRePORT) |
| Standard No. |
1822831 OSTI ID |
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0000-0002-9068-9731 |
| Gpo Item No. |
0430-P-04 (online) |
| Sudoc No. |
E 9.17:NREL/CP-5500-75267 |
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