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Innargi and H. Anger’s Söhne Forge Long-Term Partnership to Power Geothermal Growth in Denmark and Germany

INNARGI  and  H. Anger’s Söhne Seal a Groundbreaking Geothermal Drilling Deal for Denmark and Germany By:  Robert Buluma In a major stride toward Europe’s clean energy ambitions, Innargi A/S, a leading Danish geothermal developer, has entered into a three-year framework agreement with H. Anger’s Söhne Bohr- und Brunnenbaugesellschaft mbH, one of the continent’s most experienced drilling companies. The deal covers the provision of drilling rig services for geothermal projects across Denmark and Germany, marking a significant advancement in the region’s pursuit of sustainable, low-carbon district heating. Under the agreement, approximately 20 deep geothermal wells will be drilled over the next three years, each designed to supply renewable and stable heat to communities. These wells will utilize the City Rig 500, one of Europe’s quietest and most technologically advanced rigs — developed jointly by Anger and Herrenknecht Vertical. The City Rig 500’s design is tailored spec...

EAPOSYS and Halliburton Unite to Supercharge the Future of Advanced Geothermal Systems

EAPOSYS  Partners with  Halliburton to Accelerate the Deployment of Advanced Geothermal Systems By:  Robert Buluma Biel/Bienne, Switzerland – October 10th, 2025  The race toward a sustainable energy future just got hotter. EAPOSYS SA, a Swiss geothermal innovation company, has joined forces with Halliburton (NYSE: HAL) to fast-track the deployment of its groundbreaking Advanced Geothermal Systems (AGS) . Under the newly signed agreement, Halliburton will conduct a subsurface feasibility study to evaluate and optimize the scalability of EAPOSYS’s patented closed-loop geothermal architecture. This collaboration will refine well designs, assess stratigraphic conditions, and minimize drilling risks  paving the way for the industrial-scale rollout of clean, predictable geothermal energy . “EAPOSYS SA has developed an innovative, patented, closed-loop architecture to deploy AGS anywhere in the world,” said Naomi Vouillamoz , CEO and co-founder of EAPOSYS. “AGS ...

Driving the UK Toward Net Zero: Chris Sladen on Geothermal’s Untapped Potential

Alphaxioms, we talked to Chris Sladen about his involvement in geothermal both in the UK, and globally By:  Robert Buluma Chris, please begin by explaining a little about yourself, and why you have a passion for geothermal? I have spent over 45 years involved in energy. Following undergraduate studies in geology at Southampton University, and a PhD in sedimentology at Reading University, I joined the energy sector in Aberdeen in 1980. It was a fascinating era when it seemed like at least one giant oil & gas field was discovered offshore every month; the wealth creation for the UK was gigantic. I got to see so much geology and rocks - my true passion. I moved to China in late 1983; not today’s China, this was over 40 years ago, a country closed for decades and embarking on an open-door policy, in part to bring both investment and technology. I became very interested in energy trends, energy politics, and new geography created by changing politics leading to opportunities for ene...

Turboden to Deliver 180 MW of Gen-2 ORC Plants for Fervo’s Cape Station Geothermal Project in Utah

Turboden ,  Fervo and the Future of Geothermal: 180 MW of Gen-2 ORC Plants for Cape Station, Utah By:  Robert Buluma October 2, 2025    In a landmark move for clean energy and geothermal power, Turboden America LLC   the U.S. arm of Turboden S.p.A. (a Mitsubishi Heavy Industries group company)  has been selected to supply 180 MW of Gen-2 Organic Rankine Cycle (ORC) power plants for Fervo Energy’s Cape Station geothermal project in Utah. A New Milestone in Geothermal Deployment This award relates to Phase II of the Cape Station development, following  Turboden’s earlier participation in Phase I. Under Phase II, Turboden will provide three ORC units , each with a gross output of 60 MWe, summing to 180 MWe. Once installed and operational (targeted by 2028), these Gen-2 units will bring the total ORC capacity on site to 300 MWe , making Cape Station one of the largest geothermal installations globally. The earlier Phase I installation, invol...

Vulcan Energy Strikes $196M Deal to Power Germany’s Clean Energy Future with Geothermal and Lithium

Vulcan Energy  Secures $196 Million Deal for Geothermal Power and Lithium Production in Germany By:  Robert Buluma In a major leap for Europe’s clean energy transition, Vulcan Energy  Resources has signed a landmark $196 million (€110 million) supply contract with European firms Turboden and ROM Technik . The deal will see the development, procurement, and construction of a commercial geothermal power plant near Landau, Germany , forming a cornerstone of Vulcan’s phase one Lionheart Project . A Game-Changer for Renewable Energy and EV Supply Chains The contract covers the full scope of engineering, procurement, and construction (EPC) on a fixed lump-sum turnkey basis , ensuring certainty in both cost and delivery. When completed, the Lionheart geothermal facility will: Generate 275 gigawatt hours (GWh) of renewable power annually. Produce 24,000 tonnes of lithium hydroxide per year. Supply enough lithium for around 500,000 electric vehicles (EVs) annually. ...

Pertamina Geothermal & Toyota: A New Chapter for Green Hydrogen in Indonesia

Jakarta, September 2025   In a move that could change how Indonesia leverages its enormous geothermal endowment, PT Pertamina Geothermal Energy Tbk  (PGE) and PT  Toyota Motor Manufacturing Indonesia (TMMIN) signed a joint declaration to develop a green hydrogen ecosystem in Indonesia.  By:  Robert Buluma The announcement  made at the 11th Indonesia International Geothermal Convention & Exhibition (IIGCE) in Jakarta  signals an ambition to turn geothermal heat into a strategic feedstock for low-carbon fuels and industrial feedstocks, not just electricity. Why this matters Indonesia sits on some of the world’s richest geothermal resources. Traditionally those resources have been used to generate baseload electricity; PGE’s partnership with Toyota broadens the conversation: use geothermal power and heat to produce green hydrogen, then convert that hydrogen into transport fuels, ammonia, methanol, or industrial hydrogen for heavy industry. That pivot...

Mastering the Subsurface: Insights from a Geothermal Reservoir Engineer

Geothermal energy is often called the “quiet backbone” of the clean energy transition. To understand the science, challenges, and innovations driving this sector, we spoke with a seasoned geothermal reservoir engineer with experience spanning the Andes, Nevada, Utah, and volcanic fields worldwide. Here’s what they shared. By:  Robert Buluma 1. What sparked your passion for geothermal reservoir engineering, and did you ever imagine yourself working in some of the world’s most challenging geothermal fields? My passion was sparked during my early career in the petroleum industry, specifically in reservoirs. I was fascinated by the subsurface—how fluids move, how heat and pressure interact but it wasn’t until I worked on projects in Peru that I realized geothermal offered the chance to apply my skills to clean energy. I never imagined I would later work on Enhanced Geothermal Systems (EGS) projects in Nevada and Utah or Andean volcanic fields, where the geology is as unforgiving as it ...