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 ...
Cowi to Spearhead 100MW Geothermal Power Plant Expansion in Iceland: A Leap Toward Renewable Innovation By: Robert Buluma In a major stride toward sustainable energy development, Cowi , a leading engineering firm, has secured the design contract for the expansion of the Hellisheidi Geothermal Power Plant in Iceland. This ambitious project, driven by ON Power , will see the plant's capacity increase by 100MW, further solidifying Iceland's commitment to harnessing its geothermal potential. The Hellisheidi plant, located just 18km from Reykjavik, serves as a cornerstone for Iceland's energy landscape, providing both electricity and hot water for domestic heating. With the ongoing expansion, the plant’s heating output will rise from 200MW to 300MW, ensuring more homes and businesses in Reykjavik benefit from geothermal energy. A Legacy of Excellence Cowi's involvement in the Hellisheidi project dates back to its early phases, when the firm, formerly known as Mannvit ...