Geothermal energy is a renewable source of energy stored as heat within the Earth. It can be extracted and converted to electricity without burning fossil fuels, making it clean and low emission. Unlike fossil fuels which are finite, geothermal energy is essentially limitless since heat continually radiates from the Earth's interior. Geothermal power also provides base load stability for the electric grid, can reduce the carbon footprint of buildings for heating and cooling, is highly scalable, and has a small land footprint making it suitable for dense urban areas.