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The Game Changers
Published in Anco S. Blazev, Energy Security for The 21st Century, 2021
Geothermal energy in hot springs and geysers has been used for a number of purposes—from bathing to cooking—since the beginning of time. The oldest known spa, a stone pool on China’s Lisan mountain, was built in the 3rd century BC.
Energy Resources
Published in Dexter Perkins, Kevin R. Henke, Adam C. Simon, Lance D. Yarbrough, Earth Materials, 2019
Dexter Perkins, Kevin R. Henke, Adam C. Simon, Lance D. Yarbrough
In active or recently active volcanic areas, magma is within a few kilometers of the surface. The magma can heat groundwater, producing geothermal steam, geysers, and hot springs, such as the Norris Basin geysers in Yellowstone National Park shown in Figure 14.38. People have enjoyed natural hot springs as spas and baths for centuries, and in some places, geothermal waters are suitable for domestic use. Natural hot water heats most homes in Iceland, and Icelandic greenhouses are heated the same way to grow fruits and vegetables. Even in non-volcanic areas, subsurface heat is often great enough to operate heat pumps that provide energy for home heating or cooling.
Traditional and Alternative Energy Sources
Published in J.K. Yates, Daniel Castro-Lacouture, Sustainability in Engineering Design and Construction, 2018
J.K. Yates, Daniel Castro-Lacouture
Geothermal energy exists in its natural state under the surface of the earth, and it has always been available as a source of heated water in geysers and hot springs. In recent years, geothermal energy is being used to cool homes in summer and heat them in winter using the relatively constant temperature of the ground.
Ground Motion Models for the Induced Earthquakes by the Geothermal Power Plants Activity
Published in Journal of Earthquake Engineering, 2023
Ali Khansefid, Seyed Mahmoudreza Yadollahi, Gerhard Müller, Francesca Taddei
The Geysers geothermal power plant is tied to both water injection and steam production for energy generation. As one of the world’s largest dry-steam geothermal steam fields, the Geysers is located nearly 120 km north of San Francisco, California, and this area is influenced by the general strike-slip tectonics of Northern California (Getman, Anderson, and Augustine 2015; Majer et al. 2007). This vapor-dominated geothermal field has a temperature of about 235°C and has been commercially exploited since the 1960s. The microseismic activity in the Geysers geothermal field is the result of a variety of processes, in which injecting water into reservoir causes cooling and consequently, change in pore pressure around injection wells (Douglas et al. 2013).