Geothermal energy in Brazil is an underdeveloped but potentially significant renewable resource. Here’s a clear overview of its current status, potential, and challenges:
Current situation
- Brazil’s energy mix is dominated by hydropower, along with growing wind and solar sectors.
- As a result, geothermal energy has received little attention and investment so far.
- There are no large-scale geothermal power plants currently operating in the country.
Geothermal potential
- Studies show Brazil has many areas with geothermal resources, including:
- Hot springs
- Sedimentary basins
- Oil and gas wells with high heat gradients
- Around 40 potential sites for geothermal power generation have been identified nationwide.
- Most resources are low to medium temperature, suitable for:
- Heating
- Agriculture (e.g., greenhouses)
- Industrial processes
rather than large-scale electricity production.
- A key resource is the Guarani Aquifer, one of the world’s largest aquifers, which could support geothermal uses.
Technologies and future possibilities
- Brazil may benefit from newer technologies like:
- Enhanced Geothermal Systems (EGS) – artificially creating reservoirs in hot rock
- Reusing depleted oil wells for geothermal energy extraction
- These technologies could make geothermal viable even in regions without natural volcanic activity.
Challenges
- Geological limitations
- Brazil is not near major tectonic plate boundaries → fewer high-temperature resources.
- Economic competition
- Hydropower and other renewables are already cheap and well established.
- Lack of infrastructure & expertise
- The geothermal sector is still in an early development stage.
Recent developments
- In 2025, the government approved a National Geothermal Energy Program to:
- Promote research and innovation
- Encourage investment
- Develop regulations for the sector
This signals growing interest in diversifying Brazil’s renewable energy mix.
Conclusion
- Brazil has moderate geothermal potential, especially for direct uses (heating, agriculture, industry).
- Large-scale electricity generation is currently limited, but new technologies and policies could unlock future growth.