What does EGS stand for in geothermal energy?

The creation of a geothermal system that can support commercial production by hydraulic fracturing. Engineered reservoirs called EGSs are built in areas with geothermal energy but low permeability. When fluid is injected into the earth's surface, pre-existing fractures reopen and permeability is created. Widespread potential with 6- to 8-km-deep constructed reservoirs.