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Title: Updated U.S. Geothermal Supply Characterization

Abstract

This paper documents the approach taken to characterize and represent an updated assessment of U.S. geothermal supply for use in forecasting the penetration of geothermal electrical generation in the National Energy Modeling System (NEMS). This work is motivated by several factors: The supply characterization used as the basis of several recent U.S. Department of Energy (DOE) forecasts of geothermal capacity is outdated; additional geothermal resource assessments have been published; and a new costing tool that incorporates current technology, engineering practices, and associated costs has been released.

Authors:
;
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
901250
Report Number(s):
NREL/CP-640-41073
TRN: US200713%%219
DOE Contract Number:
AC36-99-GO10337
Resource Type:
Conference
Resource Relation:
Conference: Presented at the 32nd Workshop on Geothermal Reservoir Engineering, 22-24 January 2007, Stanford, California
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; AVAILABILITY; CAPACITY; FORECASTING; GEOTHERMAL RESOURCES; RESERVOIR ENGINEERING; SIMULATION; NREL; GEOTHERMAL; GEOTHERMAL TECHNOLOGIES PROGRAM; ANALYSIS; LEVELIZED COST OF ENERGY; LCOE; ENHANCED GEOTHERMAL SYSTEMS; EGS; GEOTHERMAL-ELECTRIC SUBMODULE; GES; GEOTHERMAL ELECTRIC TECHNOLOGY EVALUATION MODEL; GETEM; NATIONAL ENERGY MODELING SYSTEM; NEMS; BLACK MOUNTAIN TECHNOLOGY; Geothermal Energy; Energy Analysis

Citation Formats

Petty, S., and Porro, G. Updated U.S. Geothermal Supply Characterization. United States: N. p., 2007. Web.
Petty, S., & Porro, G. Updated U.S. Geothermal Supply Characterization. United States.
Petty, S., and Porro, G. Thu . "Updated U.S. Geothermal Supply Characterization". United States. doi:. https://www.osti.gov/servlets/purl/901250.
@article{osti_901250,
title = {Updated U.S. Geothermal Supply Characterization},
author = {Petty, S. and Porro, G.},
abstractNote = {This paper documents the approach taken to characterize and represent an updated assessment of U.S. geothermal supply for use in forecasting the penetration of geothermal electrical generation in the National Energy Modeling System (NEMS). This work is motivated by several factors: The supply characterization used as the basis of several recent U.S. Department of Energy (DOE) forecasts of geothermal capacity is outdated; additional geothermal resource assessments have been published; and a new costing tool that incorporates current technology, engineering practices, and associated costs has been released.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Mar 01 00:00:00 EST 2007},
month = {Thu Mar 01 00:00:00 EST 2007}
}

Conference:
Other availability
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  • This paper documents the approach used to update the U.S. geothermal supply curve. The analysis undertaken in this study estimates the supply of electricity generation potential from geothermal resources in the United States and the levelized cost of electricity (LCOE), capital costs, and operating and maintenance costs associated with developing these geothermal resources. Supply curves were developed for four categories of geothermal resources: identified hydrothermal (6.4 GWe), undiscovered hydrothermal (30.0 GWe), near-hydrothermal field enhanced geothermal systems (EGS) (7.0 GWe) and deep EGS (15,900 GWe). Two cases were considered: a base case and a target case. Supply curves were generated formore » each of the four geothermal resource categories for both cases. For both cases, hydrothermal resources dominate the lower cost range of the combined geothermal supply curve. The supply curves indicate that the reservoir performance improvements assumed in the target case could significantly lower EGS costs and greatly increase EGS deployment over the base case.« less
  • This presentation summarizes the approach used to update the U.S. geothermal supply curve.
  • The U.S. Department of Energy (DOE) Geothermal Technologies Program (GTP) tasked the National Renewable Energy Laboratory (NREL) with conducting the annual geothermal supply curve update. This report documents the approach taken to identify geothermal resources, determine the electrical producing potential of these resources, and estimate the levelized cost of electricity (LCOE), capital costs, and operating and maintenance costs from these geothermal resources at present and future timeframes under various GTP funding levels. Finally, this report discusses the resulting supply curve representation and how improvements can be made to future supply curve updates.
  • No abstract prepared.
  • This paper discusses US natural gas supply dynamics in the context of the North American gas marketplace. Supply fundamentals are examined, methodology is briefly presented, regional supply outlooks are discussed. Assumptions, drivers and issues are highlighted. The analysis and outlook indicate that the sizeable North American resource base can be economically developed to supply growing US natural gas requirements. The major incremental supply sources are likely to come from deepwater Gulf of Mexico, Rocky Mountain regions, onshore Texas and imports from Canada. Given this outlook, major business and investment opportunities exist for the gas upstream and midstream sectors despite somemore » short-term challenges.« less