Geothermal Energy Pros and Cons Pros Cons No cost fluctuations determined by gas and oil prices. Fewer installers than standard HVAC and thus less competition. 30%-60% savings on heating and 25%-50% savings on cooling. Large scale geothermal power plants are dangerous to the Earth’s surface and location-centric. Click to see full answer. Just so, what are 3 disadvantages of geothermal energy? Disadvantages of Geothermal Energy 1 Environmental Issues. There is an abundance of greenhouse gases below the surface of the earth, some of which mitigates towards the surface and into the atmosphere. 2 Surface Instability (Earthquakes) 3 Expensive. 4 Location Specific. 5 Sustainability Issues. Additionally, what are the pros of geothermal energy? Pros of Geothermal Energy Renewable Source. Geothermal energy is extracted from earth’s core and will be available as long as earth exists. Environment Friendly. No Fuel Needed. Abundant Supply. Significant Savings for Home Owners. Smallest Land Footprint. Innovation in Technology. Suitable to Particular Region. In this regard, what is bad about geothermal energy? Geothermal Energy Disadvantages Potential emissions – Greenhouse gas below Earth’s surface can potentially migrate to the surface and into the atmosphere. Surface Instability – Construction of geothermal power plants can affect the stability of land.Is geothermal HVAC worth it?It is, in fact, about what is unique to a geothermal system that makes it worth it. Geothermal heat pumps are the most efficient. A high-efficiency furnace or central system achieves around 90-98% efficiency on fuel or energy consumption. That’s pretty good, for sure.