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Innargi Geothermal drives Europe's renewable district heating decarbonisation from Aarhus to Poland

Innargi Geothermal, Decarbonising Europe's Heat, One City at a Time In an era defined by the urgent need to decarbonise Europe’s energy systems, one critical sector often remains overlooked, heating. Accounting for a substantial portion of the continent’s energy consumption, the heating sector has long been dominated by fossil fuels and biomass. Enter Innargi Geothermal, a Danish company on a mission to change that, one community at a time. Founded in 2017 by A.P. Møller Holding, Innargi has rapidly evolved from a single-project venture in Aarhus into an international geothermal energy company with a growing portfolio across Northern and Eastern Europe. By applying decades of subsurface expertise from the oil and gas industry to the untapped potential of geothermal energy, Innargi is industrialising geothermal district heating at a scale never before seen in the European Union. This article takes a deep dive into Innargi’s operations, exploring its revolutionary business model and ...

Ceraphi-Led Geothermal and Green Hydrogen Innovation: Sustainable Baseload Power, Low-Carbon Heating and Cooling, and Research Partnerships with Leading Climate and Energy Institutes

A pioneering hydrogen storage project in North Yorkshire has secured £500,000 from Ofgem’s Strategic Innovation Fund, positioning the retired Knapton power station at the heart of a new “green energy hub” for flexible, low-carbon power generation. By: Robert Buluma Image: Ceraphi Well Pad With a Rig, Dril baby drill The Knapton power station in the Vale of Pickering stopped generating electricity in 2019 and was later acquired by Centrica in 2023. Centrica’s vision is to repurpose this former gas-fired plant into a green energy hub that can support low-carbon peaking power stations—facilities that only run when electricity demand and prices surge. This shift reflects a broader UK trend: instead of building entirely new sites, companies are reusing existing infrastructure to accelerate the energy transition while reducing costs and planning hurdles. This hasn't been the first we pointed out geological hydrogen as the next geothermal gem we saw this before of course companies are ...

Geothermal Data Centers: 24/7 Carbon‑Free Energy for AI, Cloud Computing, and Hyperscale Infrastructure

Geothermal Data Centers: How Earth’s Heat Is Powering the AI and Cloud Computing Boom AI training, hyperscale cloud platforms, and edge computing are driving an unprecedented surge in data center electricity demand. Operators now face a triple challenge: securing reliable power, meeting aggressive net‑zero targets, and overcoming grid constraints that delay new capacity. Solar and wind are essential but intermittent, which makes it difficult to guarantee the 24/7 uptime and predictable pricing that AI and cloud workloads require. Geothermal‑powered data centers offer a compelling alternative: firm, always‑on, low‑carbon energy drawn directly from the earth’s heat. Why Geothermal Energy Matters for Modern Data Centers Data centers never sleep—and neither does their electricity demand. As AI models scale and cloud services expand, power consumption becomes both a technical and strategic bottleneck, shaping where and how fast digital infrastructure can grow. Geothermal energy stands out b...

US Backs Advanced Chips for Faster Geothermal Drilling and Energy Security

US Backs Next-Gen Chips to Speed Geothermal Drilling and Boost Energy Security By: Robert Buluma A strategic bet on energy and chips The U.S. Department of Commerce has awarded I-Pulse $250 million under the CHIPS Research and Development program to accelerate advanced semiconductor technologies with applications in geothermal drilling, manufacturing, mining, and defense . The award reflects a broader push to strengthen domestic semiconductor capability while supporting energy security and industrial resilience . At the center of the project is a set of high-temperature silicon carbide semiconductor components and pulsed power systems designed to work in extreme environments. Those conditions matter because the same technology that can survive heat, pressure, and shock in drilling and defense can also help reduce reliance on foreign chip supply chains. Why geothermal drilling is so hard   Geothermal energy has long promised reliable, around-the-clock clean power, but drilling dee...

NYC High-Rise Geothermal Heating and Cooling: Green Building Laws, Clean Energy, and Sustainable Urban Decarbonization

How an NYC High-Rise Is Keeping Cool With Geothermal Energy (And Heating Up a New Era for Cities By: Robert Buluma   Image: The entrance to 555 Greenwich St. in Manhattan's Hudson Square neighborhood (Matt Ritchie) On a sweltering Manhattan afternoon, most office towers battle the heat with roaring chillers and aging boilers that guzzle fossil fuels.  But at 345 Hudson Street, a glass-and-steel high-rise is quietly doing something radical: it’s using the Earth itself as a battery to stay cool in summer and warm in winter — without burning a single molecule of gas on-site. This isn’t just a clever engineering trick; it’s a glimpse of how cities like New York can reinvent their skylines in the age of climate change.  Why an NYC Office Tower Needed a New Way to Stay Cool New York City has given its big buildings a tough ultimatum: cut carbon emissions or start paying hefty fines under Local Law 97. [3][4] Office towers, with their endless HVAC systems, are among the worst of...

Deep Geothermal Powering Graz: How OMV and Energie Steiermark’s “Tiefenkraft” Project Is Transforming District Heating

Deep geothermal energy is quietly becoming one of Europe’s most powerful tools for decarbonizing heat, and the new “Tiefenkraft” project by OMV and Energie Steiermark in the Graz region shows exactly why it matters – and how it will work in practice. By: Robert Buluma Why Deep Geothermal Matters Now Across Europe, the heat transition has become the missing piece of the climate puzzle: electricity is decarbonizing fast, but buildings still rely heavily on fossil fuels for heating. District heating systems offer a way to decarbonize entire cities at once, and geothermal energy is uniquely suited because it delivers constant, weather-independent heat. In Graz and Styria, the deep geothermal potential of the subsurface is now being tapped at scale, promising a regional, climate-friendly heat supply that can run 24/7 for decades. The “Tiefenkraft” Project At A Glance “Tiefenkraft” is the name of a joint deep geothermal initiative by OMV and Energie Steiermark focused on the greater Gra...

Geothermal Breakthrough in Henan: China’s Deep Earth Clean Energy, Record‑Breaking Connection Wells and High‑Efficiency District Heating

Breaking Through the Deep Earth: China’s Record‑Breaking Geothermal Connection Wells in Henan By: Robert Buluma China is quietly rewriting the rules of clean heating—and one of the most exciting breakthroughs is happening deep underground in Henan Province. Two seemingly ordinary wells, drilled only 35 meters apart at the surface, are reshaping how cities can tap geothermal energy safely, efficiently, and at scale. If you care about clean energy, smart engineering, or how future cities will stay warm without burning fossil fuels, this story is worth your full attention. In this article, we’ll walk through what happened in Henan, why it matters technically and economically, and what it might mean for the rest of the world. A New National Record in Deep Geothermal Recently, in Henan Province, China, the first pair of deep geothermal “connection wells” for the Zhongyuan Agricultural Valley Clean‑Energy Central Heating Phase II Project was successfully completed. These wells are not just a...

OMV and Wien Energie’s Vienna Geothermal Tests Exceed Expectations, Boosting Clean District Heating Potential

OMV and Wien Energie’s Deep Geothermal Breakthrough in Vienna Signals a New Era for Urban District Heating By: Robert Buluma Image : Vienna  Vienna’s energy transition just took a major step forward, and it came from deep underground. At the Aspern site in the Austrian capital, OMV and Wien Energie have reported that their deep geothermal tests exceeded expectations, producing hotter water and stronger output than originally forecast. The results do more than validate a promising project; they strengthen the case for geothermal energy as a serious solution for urban district heating, climate action, and long-term energy security in dense European cities. What makes this development notable is not just the temperature of the water or the technical success of the tests, but what those numbers imply for Vienna’s future. The city is working to reduce its dependence on fossil fuels while expanding clean heating options for households. Deep geothermal energy, unlike weather-dependent...

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TAQA Geothermal and Strataphy Collaborates To Advance Saudi Arabia Geothermal Cooling

PrimeLoop and the Geothermal Cooling Revolution in Saudi Arabia Image: Pictorial Views Saudi Arabia is entering a new phase in cooling technology, and geothermal cooling is becoming one of the most compelling solutions in that transition. At the center of this shift is PrimeLoop, Strataphy’s proprietary geothermal cooling system, which is being positioned as a commercial answer to one of the region’s most urgent infrastructure challenges: how to cool buildings efficiently in extreme heat while reducing electricity demand and water use. This matters because cooling is not a minor utility in the Gulf. It is a core operating cost, a grid stability issue, and an environmental pressure point all at once. In a country where ambient temperatures can push conventional air-conditioning systems to their limits, the search for smarter cooling is no longer theoretical. It is now a commercial necessity. PrimeLoop is interesting because it does not simply improve on conventional cooling. It rethinks...

University of Aberdeen and RGU partner to accelerate geothermal heating deployment

University of Aberdeen and RGU join forces to accelerate geothermal energy research and heat-network deployment Image: Lucy Leiper, Director of Research, Innovation & Enterprise at the University of Aberdeen and Christina Laing, Business Development Manager at Robert Gordon University The University of Aberdeen and Robert Gordon University (RGU) have signed a Memorandum of Agreement to explore collaborative research, training and commercial activity in geothermal energy and low-carbon heating. This strategic partnership aims to combine subsurface expertise, drilling and modelling capabilities, supply-chain development, and skills training to accelerate geothermal deployment and support the just transition to net-zero heating across Scotland and beyond. Why this partnership matters for the geothermal sector Geothermal heat offers a predictable, baseload source of low-carbon thermal energy that can decarbonise district heating, industry process heat and building heating demand. Scotl...

Eavor Kleefeld II Permit Boosts Hannover Geothermal Expansion and Deep Heat Development

Eavor Secures Kleefeld II: A New Milestone for Hannover’s Deep Geothermal Ambitions Image: A Thematic image of The Eavor Project at Geretsried  Eavor’s new Kleefeld II permit marks an important step forward for deep geothermal development in Hannover, reinforcing the city’s position as one of Germany’s most closely watched urban heat-transition markets . The licence covers about 64.5 square kilometers, lasts for three years, and combines the former Buchholz and Kleefeld I exploration areas into a single, larger field that Eavor already controlled. The decision is more than an administrative update. It signals continued confidence in geothermal as a practical, scalable source of district heating in a dense metropolitan region. For Hannover, it also strengthens a project that has been building momentum for several years and could become a reference case for other European cities seeking cleaner, locally produced heat. A New Chapter For Hannover Kleefeld II sits in the northeast of...

Geothermal Steam Output Gap, Decline, Integrity, and Life Extension

The Disparity Between Anticipated and Actual Geothermal Steam Output Image: thematic image of the Hellisheiði geothermal power plant in Iceland  Geothermal energy is one of the most dependable baseload renewables, but the gap between expected steam output and real production remains a central industry problem. Exploration models are always incomplete, and once wells are onstream, pressure decline, scaling, corrosion, and thermal breakthrough steadily erode performance. Why Forecasts Miss the Mark Exploration depends on sparse wells, surface manifestations, geophysical surveys, and geochemical indicators, so it only samples a small part of a complex reservoir. Reservoirs are rarely uniform, and permeability, porosity, mineralogy, and thermal conductivity can vary sharply over short distances, which means early temperature or chemistry readings can overstate how much of the reservoir will actually support long-term production. Phase behavior adds another layer of uncertainty. In two-...

Texas Deep Geopressured Geothermal Permit Advances Long-Duration Energy Storage, Binary Power, and Grid Firming

Texas Issues Second Deep Geopressured Geothermal Permit, What it Means for U.S. Geothermal Development The Texas Railroad Commission (RRC) issued its second permit for a deep geopressured geothermal well in July 2026, approving Quidnet Energy Deployment LLC to drill a geothermal energy storage well in Galveston County. This permit follows the RRC’s first deep geopressured authorization in February 2025 for Sage Geosystems in Atascosa County. Together, these approvals mark a meaningful step in Texas’s pivot from traditional fossil-fuel regulation toward enabling novel subsurface energy technologies, leveraging decades of oil and gas oversight to manage drilling, completion, and subsurface engineering risks. This article explains geopressured geothermal fundamentals, why Texas matters, technical and environmental considerations, market and policy implications, and what to watch next for developers and stakeholders. What is Deep Geopressured Geothermal? Deep geopressured geothermal syste...

XGS Energy IPO: Morgan Stanley, Geothermal Growth, and Fervo’s Market Momentum

XGS Energy Weighs IPO After Hiring Morgan Stanley, Chasing Fervo's Geothermal Momentum Geothermal developer XGS Energy has hired Morgan Stanley to evaluate an initial public offering, positioning itself as a potential second geothermal IPO of 2026 after Fervo Energy's blockbuster listing. The move underscores growing investor appetite for clean, firm power technologies as data-center demand and grid reliability concerns reshape the energy investment landscape. The Scoop: Morgan Stanley, IPO Timing, and Market Context In early July 2026, Axios Pro reported that XGS Energy engaged Morgan Stanley to assess a public listing, with company leadership potentially deciding within about a month whether to proceed. The timing is strategic: Fervo Energy's May 2026 IPO created a rare "open window" for geothermal equities, providing valuation benchmarks and investor education that earlier private rounds lacked. For investors, the narrative is straightforward. If Fervo proved t...

The Economics of 10 MW, 50 MW, and 100 MW Geothermal Plants

The Economics of 10 MW, 50 MW, and 100 MW Geothermal Plants Image: A thematic image of a geothermal power plant  Geothermal power has a simple promise and a complicated price tag. It turns heat from deep underground into steady electricity, but the money goes out long before the power comes in, because exploration, drilling, plant construction, and grid connection all happen up front. That is why plant size matters so much. In general, 10 MW projects tend to be the most expensive per kilowatt, 50 MW projects usually strike a better balance, and 100 MW plants can be the most efficient on a cost per electricity basis if the reservoir is strong enough. Why geothermal costs so much upfront The economics of geothermal are driven by risk and scale. A developer has to locate the resource, confirm temperature and flow, drill wells, build surface facilities, and connect everything to the grid before a single dollar of revenue is earned. That makes geothermal very different from technologies...

Kaishan and Halliburton Boost Geothermal EGS, Green Hydrogen, and Green Ammonia Projects

Kaishan , Halliburton Team Up on Advanced Geothermal, Green Fuel Projects Kaishan Group and Halliburton have deepened their cooperation with a strategic memorandum of understanding centered on advanced geothermal development, especially enhanced geothermal systems (EGS), along with green hydrogen and green ammonia opportunities. The deal builds on earlier Indonesia drilling work and signals a broader push to combine Halliburton’s high-end well-construction capabilities with Kaishan’s geothermal equipment and project-development platform. Partnership Background The relationship did not begin with the July 2026 memorandum. In February 2026, Halliburton said it had won a multiyear contract from KS Orka Renewables , part of Kaishan’s wider corporate group, to support geothermal well construction at the PT Sorik Marapi Geothermal Power and PT Sokoria Geothermal Indonesia projects in Indonesia. That work covered directional drilling, cementing, drilling fluids, and drill bits across several...

Who Finances Next-Generation Geothermal Projects? Key Investors and Funding Trends

Who Is Financing the Next Generation of Geothermal Projects? Image : A thematic image of a geothermal power plant  The next generation of geothermal projects is being financed by a wide mix of venture capital firms, strategic corporate investors, commercial banks, institutional funds, and project finance lenders. The financing landscape is changing quickly because geothermal is moving from a niche clean-energy option into a serious infrastructure asset class with the potential to deliver reliable, 24/7 power at scale. Why geothermal finance is changing For years, geothermal struggled to attract large pools of capital because many projects were seen as technically risky, geographically limited, and difficult to scale. That perception is shifting as advanced geothermal technologies, especially enhanced geothermal systems, expand the number of places where geothermal can work. Investors now see a larger addressable market, stronger power demand, and better alignment with the needs of...

Geothermal EPC Companies: How Developers Choose the Right Contractor for Projects

Geothermal EPC Companies: How Developers Choose a Contractor Image: A Thematic image of a geothermal power plant  Geothermal developers choose EPC contractors by combining technical geothermal experience, financial strength, execution credibility, and the ability to manage field-specific risk. In recent awards, the strongest bidders have been those with proven geothermal references, repeat-delivery history, and the ability to package engineering, procurement, construction, and commissioning into one bankable offer . Why geothermal EPC is different Geothermal EPC is more complex than standard power plant construction because the contractor must build around a live underground resource. That means the project team has to deal with reservoir uncertainty, steam chemistry, scaling, corrosion, reinjection behavior, plant-field interfaces, and grid interconnection all at once . For developers, this turns EPC selection into a risk-management decision. The contractor is not just a builder; ...