Factor2 Energy, a Duisburg firm with an revolutionary strategy to geothermal vitality, right now introduced the profitable completion of its Seed funding spherical, elevating €7.7 million in enterprise capital.
The spherical was led by At One Ventures, with further investments from Excessive-Tech Gründerfonds (HTGF), Gründerfonds Ruhr, Verve Ventures and Siemens Vitality Ventures.
“Our strategy allows emission-free, environment friendly, and baseload-capable electrical energy manufacturing, which is right for conventional oil and fuel corporations trying to diversify their working belongings,” stated CEO and Co-founder Felix Boehmer. “And in reality, all the system leverages confirmed applied sciences from the oil and fuel sector, with its lengthy historical past of drilling and geologic experience.”
Factor2 Vitality was based in 2025 and is led by Michael Wechsung, Joerg Strohschein and Felix Boehmer who all labored collectively at Siemens Vitality. There they invented a brand new, and reportedly economically superior technique to harness geothermal vitality by utilising CO₂ as the first working fluid within the geothermal cycle, changing water or brine.
The corporate will use the Seed funding to advance the technological growth of this CO₂-based geothermal energy technology system and to develop a pilot energy plant to reveal scalability.
Kendra Rauschenberger, Common Companion at Siemens Vitality Ventures, acknowledged, “I’m happy to see this expertise progressing towards commercialisation, following its growth inside Siemens Vitality Ventures. Geothermal vitality is a dependable and renewable energy supply, and we are going to work with Factor2 Vitality to tailor our generators to satisfy the precise wants of this rising market.”
The expertise will be deployed at both pure CO2 Reservoirs or at reservoirs designated for Carbon Seize and Storage. The (naturally occurring or captured) CO₂ is injected into deep, porous geological formations, the place it’s securely saved. Because it absorbs geothermal warmth from the encircling rock, its density decreases, initiating a buoyancy-driven circulation referred to as the thermosiphon impact.
Consequently, the CO₂ rises naturally to the floor by way of manufacturing wells, eliminating the necessity for subsurface pumps and considerably decreasing parasitic vitality consumption and mechanical complexity.
On the floor, the warmth is transformed into electrical energy utilizing a direct pushed CO₂ turbine system. After growth, the CO₂ is cooled, reinjected into the reservoir, making a closed cycle that allows steady energy technology whereas sustaining long-term CO₂ storage.
In comparison with standard water-based geothermal programs, this strategy can allegedly obtain as much as twice the facility output beneath comparable geological circumstances, whereas requiring decrease capital expenditures (CAPEX).
Helen Lin, Companion at At One Ventures, feedback: “As a cornerstone for enabling broader electrification, the necessity for cost-effective baseload energy has by no means been extra pressing. The fluid physics of CO₂ as a geothermal working fluid allows a 2x enhance in energy output whereas working on the similar depths/temperatures as standard geothermal, translating to efficiencies in each capex and opex.
“These technoeconomics mix to kind a positive LCOE at websites that may beforehand have been economically unviable. We’re excited to assist Factor2 to carry this important expertise to market to unlock the potential of geothermal as a extra prevalent supply of inexperienced baseload.”
Apart from delivering dependable, 24/7 inexperienced energy, the usage of CO₂ allows entry to a broader vary of geological websites, unlocking warmth from areas unsuitable for standard geothermal programs.
Utilizing CO₂ permits Factor2 Vitality to faucet into shallower and cooler geothermal websites, decreasing drilling prices and increasing the vary of viable energy plant areas. The system operates effectively the place standard geothermal fails, providing aggressive Levelized Price of Electrical energy.
It additionally eliminates the necessity for secondary fluids or complicated binary programs, simplifying operations. And, by leveraging each geological formations designated for CO₂ storage (CCS) and pure CO₂ reservoirs, Factor2 Vitality can rework these into energetic vitality belongings.
Timo Bertsch, Funding Supervisor at HTGF, feedback: “We invested in Factor2 Vitality as a result of their revolutionary expertise dramatically expands international geothermal potential and uniquely allows the transformation of CCS websites into energy-generating energy crops. Their profitable proof of idea in a geologically complicated atmosphere demonstrates the robustness and scalability of their strategy. We imagine Factor2 Vitality is effectively positioned to play a pivotal function within the international vitality transition.”
