Geothermal Energy Facts

If you consider investing in a geothermal system, you must have some idea about geothermal energy. Geothermal energy is a clean and sustainable energy resource derived from the earth. It can be utilized as a source of renewable electricity. It also helps to heat or cool your applications directly.

You can take full advantage of the constant temperature in the upper three meters of the earth’s surface. Here are a few additional information on geothermal energy facts.

Facts on Geothermal Energy

Derived from Greek Words

The word Geothermal is obtained from two Greek words. Geo means earth and Therme means heat. Together, it refers to the heat derived from inside the earth.

Produces Electricity Consistently

The geothermal power plants run 24 hours a day and 7 days a week and thereby produce electricity consistently. Its power output is highly stable and predictable. This allows you to facilitate energy planning with remarkable accuracy.

You can rely on geothermal power plants as a means of meeting baseload energy demand or any minimum demand on some electrical grid during a 24-hours period.

Can be Used in Different Ways

The uses of geothermal energy depend on the resource and the type of technology used. You can generate electricity through geothermal power plants, heat and cool buildings with geothermal heat pumps, and operate heating structures through direct-use applications.

Largest Geothermal Plant

The Geysers Geothermal Complex comprises 18 power plants, located in the north of San Francisco, California and is labeled as the largest geothermal installation in the world.

Enhanced Geothermal Systems

With the development of EGS (enhanced geothermal system) technologies, there is a potential of accessing over 100 GW of geothermal energy. With an emerging DDU (deep direct-use)  technology, geothermal energy can be accessed across the country.

Lowest Carbon Footprints

The drilling level for geothermal energy is low compared to shale gas extraction, so it makes a minimal environmental impact. Besides, geothermal power does not result in heavy traffic flow and industrial production due to its lack of need for transportation.

Cooling Functions

With the insulating properties of the earth, geothermal energy can provide both heatings as well as the cooling function for your home and businesses. During summer, the geothermal system pulls all the heat from your house and transmits it to the cooler earth (aquifer) through the earth loop.


Currently, natural gas and fossil fuel extractions are used to heat up households. But, we have seen a lot of fluctuations in gas and fuel prices. Switching these resources with geothermal energy will cut down a lot of costs.

No Transportation Cost

Since the system generates energy right on the spot, it saves processing and transportation costs. A home geothermal energy pump can cut down your energy bills by 30 to 40% and will pay for itself.

An Industry Worth $30 Billion by 2020

With the shift to green sources of energy, most governments have invested heavily in the geothermal industry. This replacement of energy sources also reduces the impacts of global warming. Globally, renewable energy subsidies amounted to $88 billion in the year 2011.

Impressive Warranties

Geothermal heat pump systems come with an admirable warranty period. Almost all manufacturers provide you with warranties of over 25 years. The ground loop has a working life of over 50 years. But, the total working life of the inner components of the heat pumps is about 25 years.

Serves Multiple Purposes

Although many people are shifting to geothermal heat for functions like heating swimming pools, bathing, and other therapeutic activities. The greater percentage of this energy is used in generating electricity and heating or cooling households.

Capturing Geothermal Energy

There is a wide range of techniques that allows you to pinpoint locations of geothermal reservoirs. But the most common way is to drill a well and work out of the temperature underneath.

Electricity Generation from Geothermal Power Plants

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The U.S. Geothermal Resources

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Potential of Geothermal Exploration in the EU Countries

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Is Geothermal Energy Renewable?

An additional fact of geothermal energy is that it can replenish itself and will run until the end of time. It is renewable as it depends on the water replenished by rainfall and the internal heat of the earth.

Uses of Geothermal Energy

Geothermal water from deep down the earth can heat homes and offices directly. This can also help in growing plants in greenhouses. In some cities, the pipe of geothermal hot water is mounted under roads and sidewalks to melt snow.

Furthermore, the resources of geothermal energy can be used for space and district heating, swimming pool and spa heating,  pond heating, industrial heating, agriculture, aquaculture, greenhouse and soil heating, and snow melting.

Final Words,

Even though geothermal power generation in the US is mostly concentrated in the western region, proper utilization of applications and technology can help to expand geothermal energy use geographically.

Geothermal energy is booming in the global market as well. Over the last few years, there has been a significant rise in investments in alternative energy resources. This allows homeowners to consume clean energy.