PeaknCool4District – Renewable Peak Load and Cooling for District Heating Networks

The Concept: Triple Use Instead of a Single Solution

Decentralized, ground-source heat pumps are installed directly at buildings. In winter, they cover peak loads in the district heating network, which relieves the burden on fossil-fuel boilers. In summer, the same systems produce cooling. The resulting waste heat is used to regenerate the ground or to feed energy back into the network.

Practical Testing in Three Case Studies with Different Focuses

1. Thusis Hospital: Investigates the optimal design of the geothermal probes and their integration into the hospital's hydraulic system.
    
2. Wallisellen District Heating: For a planned network, this case study analyzes how existing geothermal probe fields can be integrated according to the PeaknCool concept, to almost completely replace peak-load boilers.
    
3. Zurich City District Heating: Examines the use of recirculation wells for the seasonal storage of hot and cold water in groundwater reservoirs according to the PeaknCool concept.

Contact: Alex Hobé