A recent BBC article discusses how next-generation geothermal companies, such as Eavor, are overcoming the challenge of tapping into the earth's near-limitless energy.
The article states that geothermal energy is vast, drawing from the Earth's internal heat, which comes from the core and has been radiating for billions of years. Despite its potential, only 32 countries operate geothermal power plants, with fewer than 700 plants worldwide producing around 97 TWh annually far behind solar power. However, experts believe geothermal energy could generate 800-1,400 TWh of electricity and 3,300-3,800 TWh of heat annually by mid-century.
The challenge lies in reaching depths where heat can be harnessed for district heating and electricity production. In certain regions, extreme heat is closer to the surface. For example, the article mentions Iceland, where geothermal energy provides heat for 85 percent of the country's homes.
Eavor has created a closed-loop system that can be implemented anywhere in the world, regardless of naturally occurring geological activity.
The company is currently drilling two wells in Geretsried, Germany, using Europe's largest land-based rigs. The Eavor Loop circulates water within this system to absorb heat via conduction, reducing environmental risks like water contamination and gas emissions.
Looking ahead, Eavor is targeting even deeper drilling.
"Our technology is looking to drill up to 11 km (6.8 miles) in the future," said Eavor co-founder Jeanine Vany. "I believe we can make meaningful progress towards unlocking superhot rock in the next three to five years."
As Eavor and other companies advance drilling technologies, the potential for geothermal energy to contribute significantly to global energy production is growing. As the article highlights, Eavor is actively addressing the challenge of reaching the necessary depths to unlock more of this resource.
