Geothermal Energy Systems and Applications

Geothermal energy systems extract heat stored in the earth's crust and transfer it for uses ranging from building climate control to electricity generation, with ground source heat pumps and energy piles representing some of the most widely deployed technologies at shallow depths. Understanding how heat moves through rocks, soils, and engineered structures — characterized by properties like thermal conductivity and measured through techniques such as thermal response testing — is central to designing systems that perform reliably over decades. Where natural geothermal gradients are insufficient, enhanced geothermal systems attempt to engineer permeability in hot dry rock, though questions about induced seismicity, long-term reservoir behavior, and extraction efficiency remain active areas of investigation. Seasonal thermal energy storage, which banks heat or cold underground across months for later use, is also drawing growing research attention as grids absorb more variable renewable generation and demand for flexible, low-carbon thermal resources increases.

Works

52,029

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408,965

Keywords

Geothermal EnergyGround Source Heat PumpRenewable EnergyThermal ConductivityEnhanced Geothermal SystemsHeat Transfer