Germany and Poland Launch First Cross-Border Renewable District Heating Network

Construction has begun on United Heat, a groundbreaking renewable district heating project linking Görlitz, Germany, and Zgorzelec, Poland. The initiative replaces fossil fuel infrastructure with renewable energy systems across both cities. The project targets climate-neutral heat supply by 2030.

Renewable Systems Replace Fossil Fuel Infrastructure

The United Heat project transforms how both cities generate thermal energy for buildings. Heat pumps, biomass, and solar thermal systems will replace existing gas-fired combined heat and power plants in Görlitz. Meanwhile, Zgorzelec will phase out coal and natural gas heating systems.

Moreover, the system incorporates power-to-heat technology, pit thermal energy storage, and waste heat recovery from sewage gas. These integrated technologies will reduce carbon emissions by approximately 50,000 metric tons annually. The sustainability focused approach demonstrates how cross-border collaboration can accelerate energy transitions.

Cross-Border Pipeline Connects Two National Networks

The technical infrastructure includes a 3.8-kilometer pipeline connecting Zgorzelec and Görlitz directly. Additionally, 12 kilometers of pipelines will link previously separate German networks within the system. The sewage treatment plant functions as the central connection point between German and Polish networks.

This facility can transport up to 15 megawatts of heat in either direction based on supply and demand fluctuations. Therefore, the system provides flexibility and resilience through bidirectional heat transfer capabilities. The architecture of the network allows both cities to share renewable energy resources efficiently.

Complex Infrastructure Demands Tight Project Coordination

Stadtwerke Görlitz and SEC Zgorzelec oversee the United Heat initiative, with Drees & Sommer providing project management consulting. The project represents significant technical and organizational challenges in cross-border urban planning.

However, structured project management processes enable efficient implementation within compressed timeframes. The district heating transition requires integrating innovative energy technologies into an intelligently managed energy mix. This construction project sets a precedent for international cooperation on renewable energy infrastructure.

A Quick Architectural Snapshot

United Heat connects German and Polish cities through 15.8 kilometers of district heating pipelines. Renewable systems including heat pumps, biomass, and solar thermal replace fossil fuel infrastructure. The project eliminates 50,000 metric tons of carbon emissions yearly while enabling bidirectional heat transfer up to 15 megawatts between national networks.

✦ ArchUp Editorial Insight

Cross-border infrastructure projects rarely emerge from goodwill alone. United Heat reflects mounting pressure on European municipalities to meet 2030 climate targets while managing aging fossil fuel systems. Germany faces strict decarbonization mandates. Poland confronts coal phase-out requirements under EU regulations. Both cities share geographic proximity and complementary energy deficits.

The bidirectional heat transfer model addresses a practical problem. Neither city possesses sufficient renewable capacity independently. Shared infrastructure distributes financial risk across two national frameworks and multiple corporate stakeholders. Municipal utility companies gain access to EU funding mechanisms unavailable for domestic-only projects.

This project is the logical outcome of regulatory pressure plus geographic opportunity plus distributed financial risk.

Reviewer

★ ArchUp Technical Analysis

Technical and Documentary Analysis of the United Heat Project – Görlitz (Germany) and Zgorzelec (Poland):
This article presents an architectural and technical analysis of the United Heat project as a case study in cross-border renewable district heating infrastructure. To enhance its archival value, we would like to present the following key technical and design data.

The project aims to achieve climate-neutral heat supply by 2030, with heat pumps, biomass, and solar thermal systems replacing gas-fired combined heat and power plants in Görlitz, while Zgorzelec gradually phases out coal and natural gas heating systems.

The technical infrastructure includes a 3.8-kilometer pipeline directly connecting the two cities, along with 12 kilometers of pipelines connecting previously separate German networks within the system. A wastewater treatment plant serves as the central hub linking the German and Polish networks, capable of transferring up to 15 megawatts of heat in either direction based on supply and demand fluctuations.

The system integrates power-to-heat technology, thermal energy storage, and waste heat recovery from sewage gas, reducing carbon emissions by approximately 50,000 metric tons annually. The initiative is overseen by Stadtwerke Görlitz and SEC Zgorzelec, with project management consulting provided by Drees & Sommer.

Related Insight: Please refer to this article to understand the context of modern architectural preservation:
Sustainable Infrastructure: Integrating Renewable Energy Systems in Urban Planning.