Germany and Poland have commenced construction on United Heat, the first renewable cross-border district heating system connecting Görlitz (Germany) and Zgorzelec (Poland). The project replaces gas-fired power plants in Görlitz and coal and natural gas in Zgorzelec with renewable sources including heat pumps, biomass, and solar thermal. The system integrates power-to-heat technology, pit thermal energy storage, and waste heat from sewage gas, reducing carbon emissions by approximately 50,000 metric tons annually.
A 3.8 km pipeline will connect the two cities, complemented by 12 km of pipelines linking separate German networks. The sewage treatment plant will serve as a central hub, capable of transporting up to 15 megawatts of heat bidirectionally based on demand. Stadtwerke Görlitz (Veolia Group) and SEC Zgorzelec (E.ON Group) oversee the project, with Drees & Sommer managing consultancy and project management.
This innovative infrastructure exemplifies the energy transition challenges district heating providers face. United Heat combines advanced technologies with cross-border collaboration to achieve climate-neutral heat supply goals by 2030. Drees & Sommer credits structured project management and industry-specific processes for meeting tight timelines efficiently.
Construction milestones include pipeline installation and integration of renewable energy systems, with full operational status targeted by 2030. The project sets a precedent for international cooperation in sustainable urban energy solutions, offering valuable insights for AECM professionals managing complex infrastructure projects.
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