Geothermal energy: Difference between revisions

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'''Geothermal energy''' is [[energy]] extracted from the [[heat]] stored beneath the [[Earth]]'s surface by means of water (or steam) circulating in deep wells. The threat of global warming from CO2 emissions has stimulated great interest in generating electricity from this clean and unlimited source of heat energy. The heat can also be used directly to replace fossil fuels in heating homes and buildings. Nations like Iceland, with favorable geology have made geothermal energy their primary source of heat and electricity. The problem for other areas of the world is that the heat is buried too deep. Recent progress in drilling technology has revived hope that geothermal energy may become a big part of our energy solution.


'''Geothermal energy''' is [[energy]] extracted from the [[heat]] stored beneath the [[Earth]]'s surface by means of water (or steam) circulating in deep wells.  Geothermal systems for homes don't make electricity; instead, they use the sustained temperature of the ground to heat or cool a building or buildings.  See the [[Wikipedia:Geothermal_power|Geothermal power]] article on Wikipedia for details.
== Reading List ==
 
* [https://www.youtube.com/watch?v=l6UGpaKnkS0 ''Geothermal Energy: How Big is the Potential?''] Sabine Hossenfelder, 2023. Dr. Hossenfelder's skeptical review of geothermal well failures.<br>
* [https://www.youtube.com/watch?v=l6UGpaKnkS0 ''Geothermal Energy: How Big is the Potential?''] Sabine Hossenfelder, 2023. Dr. Hossenfelder's skeptical review of geothermal well failures.<br>
* [https://www.nrel.gov/docs/fy23osti/84822.pdf ''Enhanced Geothermal Shot Analysis for the Geothermal Technologies Office''] (NREL 2023) Chad Augustine, et.al. National Renewable Energy Laboratory Technical Report NREL/TP-5700-84822.<br>
* [https://www.nrel.gov/docs/fy23osti/84822.pdf ''Enhanced Geothermal Shot Analysis for the Geothermal Technologies Office''] (NREL 2023) Chad Augustine, et.al. National Renewable Energy Laboratory Technical Report NREL/TP-5700-84822.<br>

Revision as of 17:15, 29 September 2023

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Fig.1 Geothermal resource favorability and identified hydrothermal sites
Fig.2 A cross-section of the Fervo horizontal doublet EGS system and deep vertical monitoring well.

Geothermal energy is energy extracted from the heat stored beneath the Earth's surface by means of water (or steam) circulating in deep wells. The threat of global warming from CO2 emissions has stimulated great interest in generating electricity from this clean and unlimited source of heat energy. The heat can also be used directly to replace fossil fuels in heating homes and buildings. Nations like Iceland, with favorable geology have made geothermal energy their primary source of heat and electricity. The problem for other areas of the world is that the heat is buried too deep. Recent progress in drilling technology has revived hope that geothermal energy may become a big part of our energy solution.

Reading List