Geothermal power plants use steam to produce electricity. The steam comes from reservoirs of hot water found a few miles or more below the earth’s surface. The steam rotates a turbine that activates a generator, which produces electricity.

How does geothermal home energy work?

Geothermal heat pumps transfer the moderate heat found not far below the Earth’s surface into homes and buildings through a looping pipe system. … The system then carries the now-warmed fluid into a home or building, where the geothermal unit uses it to heat air circulated through your home via a standard duct system.

What are 3 disadvantages of geothermal energy?

• Environmental issues. There is an abundance of greenhouse gases below the surface of the earth. …
• Surface instability (earthquakes) Construction of geothermal power plants can affect the stability of land. …
• Expensive. …
• Location-specific. …
• Sustainability issues.