Enhanced Geothermal Systems (EGS) for Energy Storage involve creating artificial geothermal reservoirs by injecting water into hot rock formations to generate heat and produce steam, which can then be used to drive turbines and generate electricity. This technology enhances the efficiency of energy storage in areas with low natural permeability.
Addressing the intermittent nature of renewable energy sources like solar and wind by providing reliable baseload power through thermal energy storage.
EGS involves drilling deep wells into hot rock formations, fracturing the rock to create interconnected fractures, and injecting water through these fractures to extract heat from the rocks. The heated water is then brought back to the surface as steam or hot water, which drives a turbine to generate electricity. This process can be reversed for energy storage by pumping cold water underground.
The manufacturing process involves drilling deep wells, installing well casings, fracturing the rock formations to create permeable pathways, and setting up surface facilities for water injection and electricity generation. This requires specialized equipment and skilled labor.
EGS systems are built in phases: site selection, exploration drilling, reservoir creation (fracturing), well installation, and surface facility construction. Each phase involves specific engineering challenges and regulatory requirements.
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