Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated August 2025
Definition
Geothermal energy refers to the heat stored within Earth's crust, which can be extracted and utilized for heating buildings or generating electricity. It relies on tapping into hot rocks or underground reservoirs of steam or hot water.
Geothermal Heat Pumps: Systems that utilize the constant temperature of the ground to efficiently heat or cool buildings.
Enhanced Geothermal Systems (EGS): Techniques used to create artificial reservoirs by injecting water into hot rocks, increasing geothermal energy production.
Direct Use: Utilizing geothermal energy directly without converting it into electricity, such as for heating greenhouses or spas.