A major milestone reached as part of the SEEDS project, supporting the energy transition of university buildings.

A Successful Deployment in Greece

PSYCTOTHERM announces the successful installation and commissioning of a 120 kW multi-source heat pump at the Democritus University of Thrace (D.U.Th.) campus in Xanthi, Greece. This achievement is part of the operational activities of the SEEDS project and marks a concrete step forward towards more sustainable heating and cooling solutions.

The system is designed to provide both heating and cooling to a residential building on the campus, showcasing the full potential of next-generation heat pump technologies.

Key Technical Highlights

Natural Refrigerant : Ammonia (NH₃) The installation uses ammonia as its refrigerant — a resolutely eco-friendly choice that demonstrates the viability of low-impact alternatives to conventional synthetic refrigerants.

Multi-Source Hybrid Efficiency The system is engineered to draw energy from multiple sources simultaneously: ambient air, geothermal and solar water loops. This hybrid architecture optimises performance based on seasonal conditions, maximising efficiency throughout the year.

Full Integration PSYCTOTHERM’s scope covered the entire chain: manufacturing, installation, and connection to a thermal energy storage system linked to the building’s distribution network. A turnkey solution, from design to commissioning.

Moving into the Monitoring and Evaluation Phase

Following testing and initial operational verification, the installation is now fully operational and serves as a reference demonstration case for advanced energy technologies.

This pilot highlights the potential of hybrid renewable sources to improve building energy efficiency and drive the energy transition at scale.

With all tasks related to assessment, installation, and commissioning now complete, the project is entering its monitoring and evaluation phase, which will enable real-world performance to be measured over time.