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Deep Geothermal Drilling Preparation for Renewable District Heating

By Robert Buluma Alphaxioms
Deep Drilling Preparation for Geothermal Energy: The Erdwärme Breisgau Project The Erdwärme Breisgau geothermal project has received approval for its next phase, allowing Badenova and Herrenknecht to begin preparing a deep-drilling site near Hartheim in Baden-Württemberg, Germany. The partners plan to invest approximately €60 million to explore a geothermal reservoir located around 3,200 metres underground and develop a heating plant for regional district heating.  Why Deep Drilling Matters for Geothermal Heating Deep geothermal energy can provide a stable, renewable source of heat for district-heating networks. Unlike solar and wind power, which depend on weather conditions, geothermal heating can operate continuously when the underground reservoir and surface infrastructure are technically and economically viable. The Erdwärme Breisgau project is designed to investigate a hot-water reservoir beneath the Hartheim area. The plan involves drilling two directional wells: one producti...
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Sage Geosystems SMECI Facility Validates Scalable EGS Power Model

By Robert Buluma Alphaxioms
Sage Geosystems Places SMECI Facility in Service, Validating a Scalable EGS Model Sage Geosystems has moved a step closer to proving that enhanced geothermal systems can be engineered for repeatable, commercial performance. The company announced that its SMECI facility in South Texas has been placed in service, and the results from more than 120 days of operating data are being presented as a validation point for its proprietary EGS approach. For a sector that has long struggled with subsurface unpredictability, water losses, and limited scalability, that is a meaningful milestone. What makes this announcement stand out is not simply that the facility is operating, but what Sage says the operating campaign demonstrated. The company says the project produced consistent reservoir behavior, low water losses, and performance that matched its predictive modeling. In geothermal development, those are the kinds of results that can move a project from promising to financeable. If the claim...
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AFK Geothermie launches €65M dublette drilling to heat 1,200 homes

By Robert Buluma Alphaxioms
AFK Geothermie launches second dublette drilling in Aschheim , pathway to 1,200 geothermal heat connections Summary AFK Geothermie has begun preparing the drill site for a second deep geothermal dublette near Aschheim. Drilling is scheduled to start in November at depths up to 2,600 meters. The project aims to supply up to 1,200 residential connections in Aschheim, Feldkirchen and Kirchheim with district heating from January 2028, expanding an established field first tapped in 2008. Total investment is around €65 million, combining public grants, municipal contributions, company equity and long-term loans. Why this matters now The AFK project is a practical example of how municipal-scale geothermal systems move from demonstration to scale-up. As European policymakers push for decarbonized heating, replicable, well-financed geothermal projects that integrate with existing district heating networks are becoming critical. The Aschheim dublette highlights common technical, financial and ...
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Cornish Lithium Secures £7.2 Million for Geothermal Lithium Project

By Robert Buluma Alphaxioms
Cornish Lithium Secures £7.2 Million UK Government Funding for Cross Lanes Geothermal Lithium Project Cornish Lithium has secured £7.2 million in UK Government grant funding to advance its Cross Lanes Geothermal Lithium Project in Cornwall. The funding will support a £14.5 million programme of drilling, testing and technology demonstration designed to assess whether lithium can be produced commercially from naturally occurring geothermal waters. The project represents an important development for the UK’s critical minerals strategy. It combines geothermal energy, direct lithium extraction and domestic mineral production in a single development model. If successful, Cross Lanes could contribute to the UK’s ambition to establish a secure, lower-carbon supply of lithium for electric vehicle batteries, energy storage systems and other advanced manufacturing applications. The grant will also enable Cornish Lithium to undertake further appraisal drilling at Baldhu, near Truro. Together, th...
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Serbia Advances Mišeluk Geothermal District Heating Project in Novi Sad

By Robert Buluma Alphaxioms
Serbia Advances Geothermal Drilling for the Mišeluk District Heating Plant in Novi Sad Serbia is moving forward with plans to develop a geothermal district heating system in Mišeluk, a rapidly urbanizing area of Novi Sad. The project is intended to place geothermal energy at the centre of a new low-carbon heating network, supported by solar power and natural gas backup. Exploratory drilling and construction of the heat distribution network are being carried out by JKP Novosadska toplana, Novi Sad’s public district heating utility. The initiative is supported through the United Nations Development Programme’s “Geothermal Energy in Serbia” programme, with financial backing from Slovakia.  The Mišeluk project is important not only because it could provide a new renewable heat source for Novi Sad, but also because it demonstrates how geothermal energy can be integrated into urban development from the earliest planning stages. Rather than retrofitting a geothermal system into an establi...
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North America Geothermal Energy Investment Opportunities, Companies, Resources, and Market Outlook

By Robert Buluma Alphaxioms
Investment Opportunities in North American Geothermal Energy North America is entering a new investment cycle in geothermal energy. The United States offers the region’s deepest commercial market and the largest advanced-geothermal pipeline; Mexico provides proven high-temperature volcanic resources and an established utility-scale industry; while Canada presents an earlier-stage opportunity centered on sedimentary-basin geothermal, direct-use heating, closed-loop systems, and oil-and-gas technology transfer. The investment case now extends well beyond conventional geothermal power plants. It includes enhanced geothermal systems, advanced closed-loop systems, geothermal heat pumps, district heating, industrial heat, geothermal storage, lithium extraction from geothermal brines, data-center power, and hybrid renewable-energy projects. In the United States, utilities had already procured or agreed to procure 1,007 MW of next-generation geothermal capacity through 12 power-purchase agreem...
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€200 Million Dutch Geothermal Financing Accelerates Sustainable Greenhouse Heat Growth

By Robert Buluma Alphaxioms
€200 Million Financing Accelerates Dutch Geothermal Energy Cluster in Centraal Oostland A new financing framework of up to €200 million is set to accelerate the development of a major geothermal energy cluster in Centraal Oostland, a greenhouse horticulture region in South Holland, the Netherlands. The facility, arranged by ING and Rabobank for renewable heat infrastructure platform 85 Degrees Renewable, will support the next phase of geothermal development in the region. The funding is expected to finance new geothermal wells, expand heat distribution infrastructure and strengthen the long-term growth of an integrated renewable heat platform serving greenhouse growers. The transaction is significant not only because of its size, but also because it demonstrates the growing ability of geothermal heat projects to attract institutional and bank financing. It highlights a shift from treating geothermal energy as a collection of individual drilling projects toward developing integrated hea...
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Nowy Dwór Mazowiecki GT-1 Thermal Water Exploration Well: Project Overview, Funding, and Investment Potential

By Robert Buluma Alphaxioms
Nowy Dwór Mazowiecki GT,1 Thermal Water Exploration Well: Project Overview, Funding, and Investment Potential Project background and objectives The town of Nowy Dwór Mazowiecki signed grant agreement No. 52/2025/Wn07/FG,hg,dg on 20 February 2025 with the National Fund for Environmental Protection and Water Management (NFOŚiGW) under the “Making Poland’s Thermal Waters Accessible” priority program. The grant fully funds the execution of a single exploration and appraisal borehole, Nowy Dwór Mazowiecki GT,1, aimed at locating and characterizing geothermal waters for heating, recreational and balneotherapy uses. The direct objective is to perform geological works to identify and appraise thermal water resources and to make them available for municipal and commercial uses. The drilling target is one borehole to a design depth of 2,070 m (±10%). The project’s declared operational target is to assess thermal water yield and temperature to determine suitability for district heating, spa, recr...
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NYC Subway Thermal Energy Network Pilot: Geothermal Heat Capture, Radiant Cooling, Seasonal Storage

By Robert Buluma Alphaxioms
New York’s Subway Heat Turned into Winter Warmth: The City’s First Transit Thermal Energy Network Pilot Turning platform heat into usable energy — what the Chambers Street and Brooklyn Bridge–City Hall pilot means for urban energy systems New York City has launched a study to design and test a Thermal Energy Network (TEN) that would capture excess heat from two of Lower Manhattan’s hottest subway stations and reuse it to heat nearby municipal buildings. The proposed pilot, centered on the Brooklyn Bridge–City Hall 4/5/6 complex and the Chambers Street J/Z station, is notable for being the first time TENs are being considered inside a U.S. transit system. The plan pairs radiant cooling on platforms with geothermal borehole storage under an abandoned center platform at Chambers Street, converting otherwise wasted heat into a supply that can be stored seasonally and delivered to surrounding municipal facilities during colder months. This initiative sits at the intersection of urban heat r...
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New Mexico Tribal Geothermal Development: Energy Sovereignty, Jobs, Investment

By Robert Buluma Alphaxioms
New Mexico’s Tribal Lands Poised for Geothermal Development: Opportunity, Challenges, and Pathways to Energy Sovereignty Image:  Located in Lordsburg, Lightning Dock is the only utility scale geothermal power plant in New Mexico. (BLM New Mexico via Flickr) Why geothermal matters for New Mexico tribes, nations, and pueblos Geothermal energy uses heat from the earth to produce electricity or heat buildings directly. For New Mexico — a state with abundant subsurface heat resources — geothermal offers a reliable, low‑emission complement to wind and solar. Unlike intermittent renewables, geothermal provides baseload power capable of supporting grid stability and reducing reliance on fossil fuels. For tribal communities, geothermal has particular appeal: it aligns with many Indigenous values around stewardship, can be developed with relatively low water demand compared with some thermal technologies, and offers long‑term revenue, jobs, and enhanced local control over energy resources. E...
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Alphaxioms Interviews Rystad Energy: Geothermal's Inflection Point, Policy, and Drilling Breakthroughs

By Robert Buluma Alphaxioms
Geothermal at an Inflection Point: Why Policy, Conventional Resources, and Drilling Breakthroughs Will Define the Next Decade This interview was conducted by Robert Buluma on behalf of Alphaxioms,  responses delivered by  Alexandra Gerken Product manager, Geothermal solution at Rystad Energy   Introduction: The Strategic Crossroads for Geothermal Geothermal energy is entering a decisive phase. After decades of steady but regionally concentrated development, the sector now faces a confluence of technological innovation, policy ambition, and market demand that could either unlock global scale or confine geothermal to niche applications. Alexandra Gerken, Product Manager for Geothermal Solutions at  Rystad Energy , offers a clear-eyed assessment of where the industry stands, which technologies will drive near-term growth, and what must happen for geothermal to become a globally significant source of firm, low-carbon power. Her analysis emphasizes three pillars: the imme...
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Green Therma Selects H&P to Drill Denmark’s Longest Geothermal Well

By Robert Buluma Alphaxioms
Green Therma Selects H&P to Drill Denmark’s Longest Geothermal Well for Aalborg Heat4Ever Demonstration Denmark is moving from geothermal ambition to execution. Green Therma has selected Helmerich & Payne to drill the Heat4Ever demonstration well near Aalborg, a project that could become one of the country’s most technically ambitious geothermal developments and a meaningful test of closed-loop district heating.   A milestone for Danish geothermal The Aalborg Heat4Ever project matters because it is designed to prove that geothermal heat can be delivered without relying on a natural hot-water reservoir. Instead of producing groundwater from a conventional geothermal field, the system uses a closed-loop pipe-in-pipe design that circulates the same fluid downhole, heats it in contact with hot rock, and returns it to the surface for district heating use.  That distinction is important for Denmark, where district heating is already a major part of the energy system ...
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PT Geo Dipa Energi Launches Strategic Minor Overhaul Tender for Dieng Unit 1 to Strengthen Geothermal Reliability

By Robert Buluma Alphaxioms
PT Geo Dipa Energi Opens Tender for Minor Overhaul of Dieng Unit 1 in 2026 Image: Indonesian Geothermal power plant PT Geo Dipa Energi (Persero) has opened a tender for the minor overhaul of the Dieng Geothermal Power Plant Unit 1 in 2026, signaling a continued focus on preserving the reliability of one of Indonesia’s most important geothermal assets. The procurement is aimed at selecting a qualified contractor with proven experience in turbine and generator maintenance for thermal power plants, underscoring the technical complexity and operational importance of the work. The tender, identified as RKS-004-PST/GDE/I/2026, uses a post-qualification bidding method and applies strict administrative, technical, and safety requirements. The schedule places document registration and collection between 26 and 28 January 2026, followed by a mandatory RKS explanation session and field visit on 29 January 2026. Procurement Scope and Process The procurement procedure requires prospective bidders...
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Innargi Geothermal drives Europe's renewable district heating decarbonisation from Aarhus to Poland

By Robert Buluma Alphaxioms
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 a...
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