Skip to main content

Just In

China's Supercritical CO₂ Geothermal Heating Breakthrough: What It Means for the World

China’s Supercritical CO₂ Geothermal Heating Breakthrough: What It Means for the World By Robert Buluma | Alphaxioms Geothermal Insights | May 19, 2026 Introduction: A Quiet Breakthrough in Zhengzhou On May 19, 2026, a major but underreported milestone emerged from Zhengzhou in China’s Henan Province. China Huaneng Group, one of the country’s largest state-owned energy companies, commissioned what is believed to be the world’s first commercial geothermal heating system using supercritical carbon dioxide (CO₂) as its working fluid instead of water. The announcement did not generate major global headlines, yet its implications are significant. This is not just another geothermal pilot project. It represents a working demonstration of a fundamentally different geothermal architecture that could reshape how heat is extracted from the Earth, especially in urban district heating systems. The Zhengzhou project signals a possible shift in geothermal engineering thinking—from water-based system...
Post a Comment

Occidental Petroleum and Berkshire Hathaway To Extract Lithium From Geothermal Brine

Occidental Petroleum and Berkshire Hathaway Join Forces to Revolutionize Lithium Extraction from Geothermal Brine

By:Robert Buluma

In an exciting development for the energy sector, Occidental Petroleum (Oxy) has announced a groundbreaking joint venture with Berkshire Hathaway to commercialize direct lithium extraction (DLE) from geothermal brine in California's Salton Sea. This initiative represents a significant step towards sustainable lithium production, leveraging cutting-edge technology and the vast geothermal resources of the region.

 A Game-Changing Partnership

Occidental Petroleum, a Houston-based oil and gas giant, is collaborating with its largest shareholder, Berkshire Hathaway, to tap into the lucrative and essential market of lithium production. This partnership is set to utilize geothermal waste brine, a byproduct from Berkshire’s extensive network of geothermal plants, as the primary feedstock for lithium extraction.

The Salton Sea, home to 10 geothermal plants owned by Berkshire Hathaway, generates 345 MW of electricity and produces a staggering 50,000 gallons of lithium-rich brine per minute. By harnessing this brine, the joint venture aims to extract high-purity lithium, a crucial component in batteries that power everything from smartphones to electric vehicles.

TerraLithium's Revolutionary Technology

At the core of this venture is TerraLithium, a subsidiary of Occidental formed in 2019. TerraLithium has developed a highly efficient DLE technology that uses advanced adsorbents and chemically modified approaches to capture trace amounts of battery-grade lithium from brine solutions. Impressively, TerraLithium’s process boasts a capture efficiency rate exceeding 99%, making it a leading technology in the field.

Expanding Horizons

If the current demonstration tests prove successful, Berkshire Hathaway plans to expand its operations, building, owning, and operating additional DLE facilities across California. Furthermore, the joint venture intends to license TerraLithium’s technology for use in other regions, potentially revolutionizing the lithium extraction industry on a global scale.

 Competitive Landscape

Occidental’s ambitious project is part of a broader trend among energy companies to invest in lithium extraction. ExxonMobil and Equinor have also entered the North American lithium brine market. Equinor recently announced a significant investment deal with Standard Lithium, potentially pouring up to $130 million into lithium projects in Texas. Similarly, ExxonMobil has initiated plans to drill lithium brine wells in Arkansas, with commercial production anticipated by 2027.

 A Sustainable Future

This partnership not only underscores the growing importance of lithium in the global energy landscape but also highlights the potential of innovative technologies to drive sustainability. By utilizing geothermal brine, a renewable and abundant resource, Oxy and Berkshire Hathaway are paving the way for a greener and more efficient lithium extraction process.

This is not the first time Oil and gas has resolved to bank in Geothermal as Repsol earlier on did the same

The joint venture between Occidental Petroleum and Berkshire Hathaway marks a significant milestone in the energy transition, blending traditional oil and gas expertise with cutting-edge renewable technology. As the world moves towards sustainable energy solutions, initiatives like this will be crucial in meeting the increasing demand for essential resources like lithium, while minimizing environmental impact. Keep an eye on this space as these industry giants continue to innovate and shape the future of energy.

Source:Spe

Connect with us:Alphaxioms

Labels:

Comments

Post a Comment

Hot Topics 🔥

Eavor steps back from operator role in the Geretsried geothermal project

Eavor at the Crossroads: What Geretsried Really Tells Us About the Future of Closed-Loop Geothermal By Alphaxioms Geothermal Insights | May 13, 2026 For years, Eavor Technologies was the geothermal sector's most talked-about enigma. The company raised hundreds of millions of dollars, attracted backing from heavyweights including BP , Chevron , Helmerich & Payne , and Temasek , and made bold promises about a proprietary closed-loop technology that would quietly revolutionise how humanity extracts heat from the earth. But it rarely said much in public. The secrecy was, to many observers in the geothermal community, a feature rather than a bug — protecting intellectual property, managing competitive intelligence, buying time. Now, Eavor is talking. And what it is saying is worth listening to very carefully. In an exclusive interview published on May 13, 2026, by GeoExpro editor Henk Kombrink, Eavor's new president and CEO Mark Fitzgerald — who took the role in October 2025 ...
Post a Comment
Read more

The XGS Energy Heat Sponge Solves Geothermal's Biggest Problem

The XGS Energy Heat Sponge Solves Geothermal's Biggest Problem I mage: A californian XGS well pad Imagine drilling a hole into the Earth’s hot crust  but instead of simply dropping in a pipe and hoping for the best, you paint the inside of that hole with a magic material that soaks up heat like a sponge soaks up water. Then you seal it, circulate a fluid, and generate clean, firm electricity  24/7, no fracking, no water consumption, no earthquakes. That’s not science fiction. That’s XGS Energy . While most of the geothermal world has been chasing fracked reservoirs or massive drilling rigs, XGS quietly built a prototype, ran it for over 3,000 hours in one of the harshest geothermal environments on Earth, and landed a 150 MW deal with Meta – enough to power tens of thousands of homes or a massive data center campus. This is the story of a technology that might be the most elegant, low-risk, and capital-efficient path to scalable geothermal power. Let’s dig in. Part 1: The Pro...
Post a Comment
Read more

GEN Electric Grid Impact Study RFP in Framingham Massachusetts Advances Utility Geothermal Networks

GEN Electric Grid Impact Study RFP Signals a Defining Moment for Geothermal Energy Networks in the United States By: Robert Buluma The United States geothermal sector is entering a new phase, one where geothermal systems are no longer being viewed only as sources of heating and cooling, but increasingly as strategic infrastructure capable of strengthening the electric grid itself. In one of the most important emerging developments in utility-scale thermal network deployment, the Home Energy Efficiency Team (HEET), in partnership with Eversource Gas, has officially launched a Request for Proposals (RFP) for a groundbreaking Electric Grid Impact Study focused on Geothermal Energy Networks (GENs), also referred to as Thermal Energy Networks (TENs). Backed by funding from the U.S. Department of Energy under grant “DE-EE0010662.0002 Home Energy Efficiency Team Utility-Managed Geothermal Pilot in Framingham, Massachusetts,” the initiative represents far more than a local energy pilot. It is...
Post a Comment
Read more

LCOE Benchmarking: Eavor Technologies vs. Fervo Energy

LCOE Compared: Eavor Technologies vs.  Fervo Energy   Two Bets on Next-Generation Geothermal An Alphaxioms Geothermal Insights Analysis | May 2026 Image:  Eavor and Fervo Drilling Rigs well poised in their respective well pads , drill baby , baby what a time to be a live Introduction: Why the Cost Question Matters Now The global geothermal sector is in the middle of a pivotal moment. After decades of stagnation largely confined to volcanic hotspots, two fundamentally different technological approaches are racing to prove that geothermal energy can be deployed broadly, cheaply, and at scale. Eavor Technologies , the Calgary-based advanced geothermal systems (AGS) company, and Fervo Energy , the Houston-based enhanced geothermal systems (EGS) pioneer, represent the sharpest divergence in next-generation geothermal strategy today. Each company is backed by hundreds of millions of dollars in private capital, each has reached key commercial milestones, and each is advancing ...
Post a Comment
Read more

Rodatherm Energy: The Refrigerant Gambit

By: Robert Buluma   Rodatherm Energy has done something no other geothermal startup has attempted at commercial scale: swapped water for refrigerant in a closed-loop system. The claim is 50% higher thermal efficiency than water-based binary cycles, achieved by circulating a proprietary phase-change fluid through a fully cased, pressurized wellbore. The company emerged from stealth in September 2025 with a $38 million Series A—the largest first venture raise in geothermal history. Lead investor Evok Innovations was joined by Toyota Ventures, TDK Ventures, and the Grantham Foundation. The engineering thesis is elegant. The execution risks are significant. This is an Alphaxioms examination of both. II. The Thermodynamic Distinction Every geothermal company you've covered moves heat using water or steam. Rodatherm moves heat using a fluid that boils and condenses inside the wellbore. In a conventional closed-loop water system (Eavor's model), water circulates as a single-phase liq...
Post a Comment
Read more

Gran Canaria geothermal drilling tender expected soon announcement

Gran Canaria’s Geothermal Push Enters New Phase as Drilling Tender Preparations Begin By: Robert Buluma   Gran Canaria’s geothermal ambitions are rapidly moving from theoretical exploration toward real industrial development. In a major development for Spain’s renewable energy sector, the Cabildo of Gran Canaria has intensified efforts to unlock underground geothermal resources while preparations quietly advance for what could become one of the Canary Islands’ most important clean energy drilling campaigns. The latest momentum comes as the Cabildo formally seeks another permit to investigate geothermal resources across strategic areas of the island. At the same time, authorities and project partners are preparing technical tender documents for exploratory geothermal drilling operations expected to begin in the coming development phases. Together, these developments signal that geothermal energy is no longer being treated as a distant scientific possibility in Gran Canaria. It is ...
Post a Comment
Read more

Pennsylvania Geothermal Pilot Sparks Revolutionary Enhanced Energy Systems Expansion

Pennsylvania’s $14 Million Geothermal Pilot Ignites Energy Revolution By:  Robert Buluma The United States geothermal industry is entering a transformative era, and Pennsylvania has suddenly emerged at the center of that revolution. Long known for its oil, gas, and coal legacy, the Commonwealth is now positioning itself as a future powerhouse for next-generation geothermal energy through an ambitious Enhanced Geothermal Systems (EGS) demonstration project backed by a $14 million grant from the U.S. Department of Energy . The announcement by the Pennsylvania Department of Environmental Protection (DEP) is far more than another clean energy story. It represents a bold reimagining of America’s energy infrastructure, one where abandoned and active oil and gas wells may soon become gateways to a new geothermal economy. At the heart of this initiative lies a groundbreaking concept: extracting the immense heat stored beneath Pennsylvania’s surface and transforming it into reliable ele...
Post a Comment
Read more

Mercury Expands New Zealand Geothermal Platform With Billion Dollar Investment

Mercury’s $1 Billion Geothermal Expansion Signals a New Era for New Zealand’s Renewable Energy Future By: Robert Buluma   Mercury Doubles Down on Geothermal Power New Zealand’s renewable energy transition has entered a bold new chapter after Mercury announced plans to significantly scale its geothermal platform with a potential investment of up to $1 billion. The announcement marks one of the country’s most ambitious geothermal expansion strategies in recent years and reinforces geothermal energy’s growing role as a reliable, baseload renewable power source capable of supporting future electricity demand. Mercury revealed that it will immediately commit NZ$75 million toward geothermal appraisal drilling at two major projects located near Taupō — Ngā Tamariki and Rotokawa. These developments could collectively generate an additional 1 terawatt-hour (TWh) of electricity annually, enough to power approximately 125,000 more homes across New Zealand. The projects are expected to t...
Post a Comment
Read more

Mazama Energy Newberry Superhot Geothermal Breakthrough Reshapes Clean Energy

Mazama Energy’s Superhot Rock Vision Redefines Global Geothermal Power By Robert Buluma   The geothermal industry is entering a new era, and one company is pushing the boundaries of what was once considered technically impossible. Mazama Energy has ignited global attention after revealing extraordinary progress at its Newberry geothermal site in central Oregon, where it reportedly achieved temperatures of 331°C in an enhanced geothermal system environment. For an industry accustomed to operating within the 150°C to 300°C range, this milestone is more than impressive — it signals the possible beginning of a technological transformation capable of reshaping the future of clean baseload power. For decades, geothermal energy has quietly remained one of the most reliable renewable energy resources on Earth. Unlike solar and wind, geothermal power does not depend on weather conditions, sunlight, or seasonal variability. It delivers continuous electricity twenty-four hours a day, seven ...
Post a Comment
Read more

Amazon NV Energy Geothermal Deal Powers AI Data Centers

Amazon’s First Geothermal Deal Signals a New Era for AI Data Centers in Nevada By:  Robert Buluma Amazon’s entry into geothermal energy through a landmark partnership with Nevada utility NV Energy marks a major turning point in how hyperscale data centers are powered in the United States. The agreement, centered in the Reno region, is more than a corporate clean-energy procurement—it represents a structural shift toward 24/7 carbon-free electricity for AI-driven infrastructure. At its core, the deal combines geothermal baseload energy, large-scale solar generation, and battery energy storage into a unified system designed to power one of the fastest-growing data center hubs in North America: the Tahoe-Reno Industrial Center. This is Amazon’s first formal entry into geothermal energy, placing it alongside other major technology companies that are increasingly investing in firm renewable energy sources to support artificial intelligence workloads. The Core Agreement: 700MW ...
Post a Comment
Read more