Green Therma receives EUDP funding for Heat4Ever demonstration in Aalborg, Denmark
Green Therma receives EUDP funding for the demonstration of the Heat4Ever™ solution in Aalborg (source: Green Therma)
Carlo Cariaga
25 Jun 2025
Green Therma has received USD 13 million to support demonstration of their Heat4Ever technology for geothermal district heating in Aalborg, Denmark.
Geothermal heat developer Green Therma has been awarded a DKK 84 million (approx. USD 13 million) grant by the Energy Technology Development and Demonstration Program (EUDP) for the full-scale demonstration of the Heat4Ever technology for geothermal heat extraction in the city of Aalborg in Denmark. The project is scheduled to kick off in the second half of 2025, with completion targeted for 2027.
Earlier this year, Green Therma entered into a partnership with local utility Aalborg Forsyning to establish the first Heat4Ever project. Under the agreement, Aalborg Forsyning will purchase heat from the plant for a period of 30 years, incorporating it into its overall district heating production.
The Heat4Ever™ solution is based on a single borehole and a closed-loop system, allowing for the establishment of geothermal plants with high flexibility and strong local scalability. Complementing this is the patented DualVac™ technology which contributes to a more efficient utilization of the Earth’s natural heat. The technology is further distinguishable in that it needs just one well, and the solution’s expected longevity is significantly longer.
The EUDP funding and the financial enablement of the project is a significant milestone for Green Therma, providing a strong endorsement of both the technology and the company’s vision. Through the demonstration project, Green Therma aims to verify the viability of integrating the Heat4Ever solution directly into district heating networks without the need for temperature boosting via heat pumps.
The project is a collaboration between Green Therma, their project partners (Aalborg Forsyning, Aalborg University, Aarhus University, GEUS, and Energy Cluster Denmark), and various suppliers, including world-leading companies in drilling and well services, energy installations, geology, and academia.
“We are very proud to have received this support from EUDP. It reflects the fact that experienced experts trust in the potential that our innovative geothermal solution holds for district heating. And the potential extends beyond Denmark’s borders. Our solution is designed to minimize most of the geological constraints that often pose challenges in geothermal projects. This means it can be deployed on a global scale, advancing renewable energy supply worldwide,” said Jørgen Peter Rasmussen.
Source: Green Therma
