Unleashing the Power of Geothermal Energy with Enhanced Systems

Tuesday - January 9 2024, 08:59 UTC - 10 months ago

Enhanced geothermal systems (EGS) enable us to access geothermal heat in new locations, potentially increasing renewable energy production. Companies like Fervo Energy are also exploring the use of EGS as energy storage systems. However, there are concerns about the use of hydraulic fracturing in EGS and further research is needed. Other companies and labs are also advancing EGS technology, making it a promising alternative to fossil fuels.

Geothermal heat, an abundant and carbon-free energy source, has the potential to be a major contributor to our renewable energy mix. However, traditional geothermal plants are limited to specific geographical conditions and currently only account for less than 1% of global renewables capacity. But with the development of enhanced geothermal systems (EGS), this could soon change.

The concept of EGS has been around since the 1970s, but recent advancements have made it a promising technology for increasing geothermal energy production. One such company leading the way is Fervo Energy, which successfully tested an EGS project in Nevada last year and is now planning to build another in Utah. Their goal is to provide constant, clean power by 2026.

So how does EGS work? By using hydraulic fracturing techniques, similar to those used in the oil and gas industry, companies can access geothermal heat in new locations. This involves cracking open solid rocks at greater depths than traditional geothermal wells and injecting water to produce steam, which then powers turbines to generate electricity. Not only does this increase the potential for geothermal energy production, but companies like Fervo Energy also see EGS as a way to store energy for the grid.

However, there are still concerns surrounding the use of hydraulic fracturing in EGS. While some experts believe the risks of seismic activity are minimal, a 2017 incident in South Korea was linked to an EGS project. This highlights the need for further research and monitoring to ensure the safety of using this technology.

Despite these challenges, there is a growing interest in EGS within the energy industry. AltaRock Energy, for example, is developing specialized techniques to access extremely hot rocks, which could greatly increase energy output. And the US Department of Energy is sponsoring Utah FORGE, a project that is drilling a well to serve as a test bed for EGS technology.

In conclusion, enhanced geothermal systems have the potential to unlock the full power of geothermal energy. With further advancements and research, this technology could significantly increase our renewable energy capacity and provide a reliable, clean energy source for years to come.