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WAIRAKEI, NEW ZEALAND – JANUARY 01: Geothermal electrical power station at Wairakei, New Zealand. (Photo by Tim Graham/Getty Images) Tim Graham/Getty Images The potential solution for abundant and clean energy could be right under our feet—or more specifically, beneath the Earth’s surface. Geothermal power has long been the forgotten sibling among renewable energies, even though it provides dependable electricity in places like Iceland and California. Now, that is beginning to change. A recent U.S. pilot set records for heat flow and output, demonstrating that Enhanced Geothermal Systems (EGS) can provide steady, dispatchable power without relying on rare minerals, extensive land use, or the intermittency issues associated with solar and wind. According to the International Energy Agency, the Earth’s accessible heat could technically meet humanity’s electricity needs 140 times over—yet geothermal gets overshadowed in public discussions. “If geothermal can follow in the footsteps of innovation success stories such as solar PV, wind, EVs, and batteries, it can become a cornerstone of tomorrow’s electricity and heat systems as a dispatchable and clean source of energy,” the agency said. Currently, geothermal accounts for less than 1% of global electricity generation, mostly concentrated in geographies with natural hot springs or volcanic activity—places like Iceland, the United States, Indonesia, and Kenya. But EGS could transform geothermal from a niche source to a global powerhouse. Indeed, EGS could become the most transformative — and politically viable — clean energy technology in decades, capable of providing large amounts of baseload power and appealing across partisan lines. In 2023, the global geothermal capacity had an average utilization rate—how often a power plant generates electricity at or near its capacity—above 75%, compared to 30% for wind power and 15% for solar PV. EGS applies the same incremental drilling improvements that unlocked U.S. shale in the 2000s. Costs there dropped…

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Filed under: News - @ August 18, 2025 2:26 pm