Assessment of Moderate- and High-Temperature Geothermal Resources of the United States
Assessment of Moderate- and High-Temperature Geothermal Resources of the United States
复制标题
美国中高温地热资源评估
DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
S. Galanis
中科院分区:
文献类型:
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作者:
Colin F. Williams;M. Reed;R. Mariner;J. DeAngelo;S. Galanis
The U.S. Geological Survey (USGS) has recently assessed the electric power generation potential of conventional geothermal resources in the United States. These resources are concentrated in the States of Alaska, Arizona, California, Colorado, Hawaii, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming, which contain all 241 identified moderate-temperature (90 to 150°C; 194 to 302°F) and high-temperature (greater than 150°C) geothermal systems located on private or accessible public lands. Geothermal power plants at The Geysers in northern California. Currently, the United States has an installed and utilized power production capacity of more than 2,500 Megawatts-electric (MWe) from geothermal plants located in Alaska, California, Hawaii, Idaho, Nevada, and Utah. (USGS photograph by Julie Donnelly-Nolan.) S cientists with the U.S. Geological Survey (USGS) recently completed an assessment of our Nation’s geothermal resources. Geothermal power plants are currently operating in six states: Alaska, California, Hawaii, Idaho, Nevada, and Utah. The assessment indicates that the electric power generation potential from identified geothermal systems is 9,057 Megawattselectric (MWe), distributed over 13 states. The mean estimated power production potential from undiscovered geothermal resources is 30,033 MWe. Additionally, another estimated 517,800 MWe could be generated through implementation of technology for creating geothermal reservoirs in regions characterized by high temperature, but low permeability, rock formations. (Geothermal systems located on closed public lands, such as national parks, were not included in the assessment.) Electricpower potential was also determined for seven low-temperature (less than 90°C) systems in Alaska for which local conditions make electric power generation feasible. In addition, the assessment also includes a provisional estimate of the power generation potential from the application of unconventional, Enhanced Geothermal Systems (EGS) technology in Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming. This assessment benefited from cooperation and coordination with the Department of Energy (DOE); Bureau of Land Management (BLM); the University of Nevada, Reno; the University of Utah; Idaho National Laboratory; Lawrence Berkeley National Laboratory; state and local agencies; and the geothermal industry.