Green Therma deploys demonstration of closed-loop geothermal in Groß Schönebeck, Germany Green Therma has deployed its closed-loop geothermal demonstration at the Groß Schönebeck research site in Germany, and the project is now moving from installation into operation. The system is intended to test the company’s Heat4Ever/DualVac concept under real geothermal conditions at depths of more than 3 kilometers. Green Therma deploys closed-loop geothermal demonstration in Groß Schönebeck, Germany Green Therma has reached an important milestone in the development of closed-loop geothermal technology with the deployment of its demonstration project at the Groß Schönebeck research site in Germany. The company says the system is now circulating water through a single-well closed-loop configuration, bringing geothermal heat to the surface from more than 3 kilometers underground. The project is being carried out at the GFZ Helmholtz Centre for Geosciences’ geothermal research facility,...
“Mazama Energy Unveils the World’s Hottest Geothermal System — A Blueprint for Terawatt-Scale Clean Energy”
Mazama Energy Ignites a New Era: The World’s Hottest Geothermal System Powers Toward a Carbon-Free Future
By Robert Buluma , October 2025
In a quiet corner of Oregon’s Cascade Range, deep beneath the rugged volcanic landscape of Newberry, a new energy revolution is taking shape. Mazama Energy — a startup incubated by Khosla Ventures and backed by Gates Frontier — has just achieved a technological milestone that could change the way we power the planet.
At a staggering 629 °F (331 °C), Mazama’s newly completed Enhanced Geothermal System (EGS) is now the hottest ever recorded on Earth. And this is just the beginning. By 2026, the company expects to push those temperatures to 750 °F (400 °C) — unlocking enough energy to power gigawatts of clean electricity from this single site.
🔥 Cracking the Code of the Earth’s Heat
For decades, geothermal energy has been the “quiet cousin” of renewables — clean, reliable, but limited to places where hot water naturally flows near the surface. Most geothermal startups have made little dent in the U.S. energy mix.
Mazama Energy is rewriting that story. Using cutting-edge drilling techniques, proprietary Thermal Lattice™ stimulation, and high-temperature materials inspired by the oil and gas industry, the company has done what was once thought impossible: created an artificial geothermal reservoir in impermeable rock — where none existed before.
Their system connects a legacy injector well with a newly drilled 10,200-foot producer well, precisely aligned within six feet of its target trajectory. The result? A robust geothermal reservoir with exceptional connectivity, verified through real-time diagnostics and fiber-optic monitoring.
“This is the fulfillment of a vision from nearly fifty years ago,” says Dr. John McLennan of Utah FORGE, referencing early geothermal experiments at Los Alamos National Laboratory. “Mazama’s success validates what researchers have dreamed of for decades — a fully functional, man-made geothermal system.”
⚡ Why It Matters: Terawatt-Scale Clean Power for an AI-Driven World
As the world races toward electrification, the rise of AI and data centers has created an unprecedented hunger for 24/7, high-density, carbon-free energy. Traditional renewables like wind and solar, while vital, are intermittent. Nuclear remains slow and costly to deploy. Fossil fuels are fast — but come with a devastating carbon price.
Mazama’s breakthrough promises a different future:
Up to 10x more power density than current geothermal wells
75% less water use
80% fewer wells needed
Electricity under 5¢ per kWh — competitive with natural gas
And crucially, this technology is globally scalable. With superhot geothermal systems, nearly any deep rock formation on Earth can become a source of power — no sunshine or wind required.
“With geothermal, you get global, round-the-clock energy that is carbon-free, cost-stable, and grid-independent,” says Sriram Vasantharajan, CEO of Mazama Energy. “It’s the perfect match for the next generation of AI infrastructure.”
🧠 Drilling for the Digital Age
Imagine a world where massive AI data centers — the beating heart of digital civilization — draw power not from coal or gas plants, but from the Earth’s own heat. Mazama’s geothermal platform enables 24/7 baseload energy at locations previously impossible for renewables.
That means data centers could rise in remote, cooler climates or even deserts — anywhere stable, high-temperature rock exists beneath the surface.
This is not just about clean energy; it’s about energy sovereignty. The ability to generate massive, reliable power anywhere could fundamentally reshape global energy geopolitics — decentralizing production and stabilizing costs for decades.
🪨 The Science Behind the Breakthrough
Mazama’s Thermal Lattice™ process is the secret sauce. Building on principles of hydraulic fracturing, it uses custom-designed fluids, nano-tracers, and real-time fiber-optic diagnostics to create a network of fractures that serve as efficient heat exchangers.
The company’s achievements include:
Peak drilling speeds of 100 feet per hour
Record bit runs up to 2,760 feet through volcanic rock
Zero downhole failures and flawless well integrity even at ultra-high temperatures
These performance metrics go far beyond typical oil and gas operations — pushing the limits of materials science and engineering.
🌍 Toward a Terawatt Future
Mazama’s roadmap starts with a 15 MW pilot and expands to a 200 MW development at Newberry. Beyond that, they envision a global rollout of SuperHot Rock wells capable of delivering hundreds of gigawatts — enough to power nations, industries, and AI-driven cities of the future.
For investors and environmentalists alike, this is a moonshot moment — the geothermal equivalent of SpaceX’s first reusable rocket.
Vinod Khosla put it best:
> “Hardcore technology development for superhot temperature drilling and artificial reservoirs is critical to making geothermal energy relevant at scale. This is the blueprint for terawatt-scale, carbon-free baseload power.”
🔋 The Earth’s Core: Humanity’s Oldest, Newest Power Source
Beneath our feet lies an inexhaustible energy source — the residual heat from Earth’s formation and nuclear decay — radiating outward from the planet’s molten core. It’s been there for billions of years, waiting for us to harness it efficiently.
Mazama Energy has now opened that door.
If they can scale what they’ve achieved at Newberry, the future of clean, constant, carbon-free energy may no longer lie in the sky — but deep within the Earth itself.
🌋 Mazama Energy Ignites a New Era: The World’s Hottest Geothermal System Powers Toward a Carbon-Free Future
By [Your Name], October 2025
In a quiet corner of Oregon’s Cascade Range, deep beneath the rugged volcanic landscape of Newberry, a new energy revolution is taking shape. Mazama Energy — a startup incubated by Khosla Ventures and backed by Gates Frontier — has just achieved a technological milestone that could change the way we power the planet.
At a staggering 629 °F (331 °C), Mazama’s newly completed Enhanced Geothermal System (EGS) is now the hottest ever recorded on Earth. And this is just the beginning. By 2026, the company expects to push those temperatures to 750 °F (400 °C) — unlocking enough energy to power gigawatts of clean electricity from this single site.
🔥 Cracking the Code of the Earth’s Heat
For decades, geothermal energy has been the “quiet cousin” of renewables — clean, reliable, but limited to places where hot water naturally flows near the surface. Most geothermal startups have made little dent in the U.S. energy mix.
Mazama Energy is rewriting that story. Using cutting-edge drilling techniques, proprietary Thermal Lattice™ stimulation, and high-temperature materials inspired by the oil and gas industry, the company has done what was once thought impossible: created an artificial geothermal reservoir in impermeable rock — where none existed before.
Their system connects a legacy injector well with a newly drilled 10,200-foot producer well, precisely aligned within six feet of its target trajectory. The result? A robust geothermal reservoir with exceptional connectivity, verified through real-time diagnostics and fiber-optic monitoring.
“This is the fulfillment of a vision from nearly fifty years ago,” says Dr. John McLennan of Utah FORGE, referencing early geothermal experiments at Los Alamos National Laboratory. “Mazama’s success validates what researchers have dreamed of for decades — a fully functional, man-made geothermal system.”
⚡ Why It Matters: Terawatt-Scale Clean Power for an AI-Driven World
As the world races toward electrification, the rise of AI and data centers has created an unprecedented hunger for 24/7, high-density, carbon-free energy. Traditional renewables like wind and solar, while vital, are intermittent. Nuclear remains slow and costly to deploy. Fossil fuels are fast — but come with a devastating carbon price.
Mazama’s breakthrough promises a different future:
Up to 10x more power density than current geothermal wells
75% less water use
80% fewer wells needed
Electricity under 5¢ per kWh — competitive with natural gas
And crucially, this technology is globally scalable. With superhot geothermal systems, nearly any deep rock formation on Earth can become a source of power — no sunshine or wind required.
“With geothermal, you get global, round-the-clock energy that is carbon-free, cost-stable, and grid-independent,” says Sriram Vasantharajan, CEO of Mazama Energy. “It’s the perfect match for the next generation of AI infrastructure.”
🧠 Drilling for the Digital Age
Imagine a world where massive AI data centers — the beating heart of digital civilization — draw power not from coal or gas plants, but from the Earth’s own heat. Mazama’s geothermal platform enables 24/7 baseload energy at locations previously impossible for renewables.
That means data centers could rise in remote, cooler climates or even deserts — anywhere stable, high-temperature rock exists beneath the surface.
This is not just about clean energy; it’s about energy sovereignty. The ability to generate massive, reliable power anywhere could fundamentally reshape global energy geopolitics — decentralizing production and stabilizing costs for decades.
🪨 The Science Behind the Breakthrough
Mazama’s Thermal Lattice™ process is the secret sauce. Building on principles of hydraulic fracturing, it uses custom-designed fluids, nano-tracers, and real-time fiber-optic diagnostics to create a network of fractures that serve as efficient heat exchangers.
The company’s achievements include:
Peak drilling speeds of 100 feet per hour
Record bit runs up to 2,760 feet through volcanic rock
Zero downhole failures and flawless well integrity even at ultra-high temperatures
These performance metrics go far beyond typical oil and gas operations — pushing the limits of materials science and engineering.
🌍 Toward a Terawatt Future
Mazama’s roadmap starts with a 15 MW pilot and expands to a 200 MW development at Newberry. Beyond that, they envision a global rollout of SuperHot Rock wells capable of delivering hundreds of gigawatts — enough to power nations, industries, and AI-driven cities of the future.
For investors and environmentalists alike, this is a moonshot moment — the geothermal equivalent of SpaceX’s first reusable rocket.
Vinod Khosla put it best:
> “Hardcore technology development for superhot temperature drilling and artificial reservoirs is critical to making geothermal energy relevant at scale. This is the blueprint for terawatt-scale, carbon-free baseload power.”
🔋 The Earth’s Core: Humanity’s Oldest, Newest Power Source
Beneath our feet lies an inexhaustible energy source — the residual heat from Earth’s formation and nuclear decay — radiating outward from the planet’s molten core. It’s been there for billions of years, waiting for us to harness it efficiently.
Mazama Energy has now opened that door.
If they can scale what they’ve achieved at Newberry, the future of clean, constant, carbon-free energy may no longer lie in the sky — but deep within the Earth itself.
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