Hamburg, July 31 – The red-green Hamburg Senate is pushing forward with its ambitious heat transition strategy, integrating renewable energy sources beyond wind and solar. A key component of this plan is deep geothermal energy, with the first such project in Wilhelmsburg slated to begin operations later this year.
Wilhelmsburg Geothermal Plant: A Look Inside
The facility, located on Schlengendeich in Wilhelmsburg, appears unassuming from the outside, featuring a large, silvery-grey machine hall. However, within its walls lies the heart of the plant: a high-efficiency heat pump system developed by a specialized company from Saxony.
Harnessing Heat from 1,300 Meters Below
The plant is designed to pump 48-degree Celsius thermal water from a depth of 1,300 meters. This water, extracted from a 130-meter-thick sandstone layer approximately 45 million years old, is essentially tapping into the ancient seabed of the young North Sea, as explained by project manager Frank Boehnke.
The energy is extracted from the thermal water via 30 heat exchangers. The cooled water is then reinjected into the earth. Multiple filtration systems are in place along the path to the surface and within the machine hall to remove sand from the water.
District Heating for 6,000 Households
Once operational by the end of 2026, the deep geothermal plant will provide district heating to approximately 6,000 households in Wilhelmsburg. Geothermal energy, alongside wind and solar, represents the third pillar of Hamburg’s renewable energy strategy. Its constant and round-the-clock availability makes it an ideal source for base-load heating, ensuring a consistent supply for customers.
Hamburg’s Heat Transition Strategy
This project aligns with the federal government’s mandate for municipalities to present a plan for climate-neutral heat supply by mid-year. The Hamburg Senate’s focus on heat pumps for its heat transition underscores its commitment to sustainable energy solutions.
Financials and Future Investments
Despite a decrease in revenue, the municipal company Hamburger Energiewerke continues to prioritize the expansion of renewable energy. The company plans to invest 2.57 billion euros by 2030 to further develop its green energy infrastructure.
Other Developments in Hamburg
In related news, district heating works on Osterstraße are nearing completion, with normal traffic and bus line 4 services expected to resume by the end of October.
Hamburg CSD and Other City News
The Hamburg Christopher Street Day (CSD) is scheduled to begin this Saturday with increased police presence following an attack at the Berlin CSD. Elsewhere, St. Pauli’s president, DFB Vice Göttlich, has voiced strong support for a boycott threat against FIFA in response to investor plans. A 34-year-old man has been charged in a domestic violence case dating back ten years. Construction on the new 3,700-ton Sternbrücke is progressing, with trains expected to run on the bridge from August 31.
Source: NDR 90,3 | NDR 90,3 Aktuell | 31.07.2026 | 08:00 Uhr
