Sustainable Heating from the Drinking Water System of the City of Tulln
In Tulln, a modern residential complex is being developed with a strong focus on sustainable and innovative energy supply. Three powerful iDM TERRA SW 70 MAX heat pumps efficiently utilize energy from the city of Tulln’s drinking water system for heating and domestic hot water generation – future-proof, resource-efficient, and highly energy-efficient.
The residential complex in Tulln impressively demonstrates how innovative heat pump technology and sustainable energy sources can be intelligently combined. The energy source is the city of Tulln’s drinking water from a deep storage reservoir. The energy is extracted from the connecting pipeline between two water reservoirs (DN 300) and efficiently used to supply the new residential development with heating energy.
At the heart of the system are three powerful TERRA SW 70 MAX heat pumps, providing a combined heating capacity of approximately 200 kW. The multi-stage heat pump system ensures a particularly high level of supply security while optimally adapting operation to the actual energy demand.
Heat distribution is provided through a comprehensive underfloor heating system operating at low system temperatures, enabling maximum efficiency. Decentralized apartment stations are used for hygienic domestic hot water preparation, ensuring both comfort and safe hot water supply.
In addition, three 3,000-liter heating buffer tanks ensure optimal storage and distribution of the generated thermal energy. Due to the strict hygiene requirements associated with using drinking water as an energy source, the entire system was planned and implemented in close coordination with the responsible authorities. As a result, the installation meets the highest safety and hygiene standards while demonstrating the enormous potential of sustainable energy generation from existing infrastructure.
With this project, we once again demonstrate how iNTELLiGENTE heat pump technology enables innovative energy concepts to be implemented efficiently, sustainably, and future-proof.
