224. Geothermal Could Save the Grid. So Why’s No One Talking About It?

The Next Byte Podcast · 15 Jul 2025 · 21m

What this episode covers

The hosts discuss Enhanced Geothermal Systems (EGS), a technology leveraging advanced oil and gas drilling techniques to generate baseload power from hot rock anywhere, potentially supplying 20% of US energy by 2050. They analyze specific technologies like PDC drill bits, directional drilling, and fracking, while debating the economic viability of EGS against falling solar and battery costs. The conversation highlights the FORGE project in Utah as a key pilot and addresses the high capital risk and uncertainty surrounding whether these costs will drop sufficiently to compete with established renewables.

Mentioned

Companies
Mouser Electronics
Tools
PDC drill bits
Also
FORGE project, sodium ion batteries

Other shows on the same ground, closest first.

  • Catalyst · 36m

    Going deep on next-gen geothermal

    Dr. Roland Horne, a professor of earth sciences at Stanford University and leader of its geothermal program, discusses the three main pathways for next-generation geothermal: Enhanced Geothermal Systems (EGS), closed-loop systems, and super-deep geothermal. He explains how EGS, pioneered by companies like Fervo Energy, leverages oil and gas fracking techniques to create permeability in hot rock, potentially making geothermal viable across half of the United States. Horne also details the economic and technical challenges of closed-loop and super-deep technologies, emphasizing that advances in drilling efficiency, such as batch drilling and PDC bits, are critical to lowering costs and accelerating project timelines.

  • Catalyst · 1h 01m

    Could geothermal become a major zero-emissions player?

    Jamie Beard, executive director of Project Innerspace, discusses the potential for 'geothermal anywhere' technologies to scale globally by overcoming subsurface risks and financing gaps. He explains how enhanced geothermal systems (EGS) and closed-loop technologies can replicate Iceland's success worldwide, while highlighting the critical need to leverage the oil and gas industry's drilling expertise and workforce. Beard also covers the role of geothermal heat pumps in decarbonizing heating and the challenges of securing venture capital and government support for first-of-a-kind projects.

  • Catalyst · 32m

    How geothermal gets built

    Carl Hoiland, co-founder and CEO of Zanskar, explains the step-by-step process of developing geothermal projects, from initial temperature gradient drilling to proving permeability and managing reservoir decline. He details the historical stall of the industry due to exploration risk and dry holes, and how new technologies like AI and enhanced geothermal systems (EGS) are de-risking the sector. Hoiland highlights Zanskar's rapid 12-month development of the Lightning Dock field in New Mexico and discusses the massive potential of hundreds of gigawatts of accessible geothermal resources in the western United States.

  • How I Built This · 39m

    HIBT Lab! Quaise Energy: Carlos Araque

    Carlos Araque, co-founder and CEO of Quaise Energy, explains how his company plans to unlock global geothermal energy by drilling 20-kilometer deep holes using millimeter-wave technology developed at MIT. Araque details his transition from a 15-year career in the oil and gas industry, including time at Schlumberger, to founding Quaise to address the technological gaps in the energy transition. He discusses the technical mechanics of vaporizing rock with gyrotrons, the economic potential of repowering existing fossil fuel plants, and the challenges of scaling this capital-intensive technology to compete with wind, solar, and coal.

  • Hardware to Save a Planet · 45m

    The Future of Geothermal Energy Generation with Carlos Araque, CEO & Co-founder of Quaise

    Carlos Araque, CEO and Co-founder of Quaise Energy, explains how his company uses millimeter-wave drilling technology, derived from fusion research, to access deep geothermal energy. He argues that geothermal is one of the few renewable sources capable of scaling to the 40-50 terawatts needed to replace fossil fuels, unlike solar and wind which face land and material constraints. Araque details Quaise's approach of vaporizing rock at depths of 3-12 miles to produce supercritical steam, enabling the repowering of existing fossil fuel infrastructure rather than building new plants from scratch. He emphasizes the quantitative scale required, noting that drilling 10,000 wells per year is within the current capabilities of the oil and gas industry.

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