Enhanced Geothermal Systems (EGS) represent a breakthrough in renewable energy, allowing for geothermal power generation in areas lacking natural hydrothermal resources. By using hydraulic stimulation to increase rock permeability, EGS plants can extract Earth's heat to generate electricity. This technology promises a consistent energy supply and has a global application potential, with projects in various countries exploring different stimulation methods for efficient energy extraction.
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Hydraulic stimulation involves injecting water at high pressures into rock formations to increase their permeability and access thermal energy
Steam Turbines
Steam turbines are used to convert geothermal heat into electricity by vaporizing a working fluid
Binary Cycle Power Plants
Binary cycle power plants also use geothermal heat to generate electricity, but through a closed-loop system that re-injects cooled water or fluid back into the Earth
EGS has the potential for worldwide application, as it is not limited by geographical constraints and can access heat resources at sufficient depths
Countries such as Australia, France, Germany, Japan, Switzerland, and the United States are actively researching and developing EGS projects
Hydraulic Stimulation
Hydraulic stimulation is the most commonly used technique in EGS, but other methods such as chemical, thermal, and explosive stimulation are also being explored
Advanced Drilling Technologies
Advanced drilling technologies are necessary to reach the high temperatures needed for efficient energy extraction in EGS
EGS plants typically have an operational lifespan of 20 to 30 years, providing a long-term renewable energy solution
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EGS vs. Natural Geothermal Resources
EGS extends geothermal power beyond natural hydrothermal areas by creating/enhancing permeability in hot dry rock.
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EGS Heat Extraction Method
EGS uses hydraulic stimulation to access thermal energy in Earth's crust where natural water/permeable rock lack.
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EGS Impact on Geothermal Development
EGS broadens geothermal energy potential geographically, allowing exploitation in diverse locations.
