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Heat pump power for Burgdorf: smart energy for modern veterinary medicine

A sustainable supply concept was developed for the new veterinary care center in Burgdorf that consistently avoids fossil fuels. The specifications were clear: no oil, no gas, no district heating. Due to the complex funding landscape, the project was in the planning and coordination phase for some time. Implementation is now being prepared and is expected to be realized in the course of 2026.

The challenge: maximum performance with minimum resource consumption

The supply system had to meet several requirements at the same time: high efficiency, maximum operational reliability, cost-effective implementation and precise adaptation to the load profiles of a modern veterinary clinic.

Particularly important were:
Resource-saving operation throughout the year
High efficiency even at partial load
Utilization of existing heat sources such as exhaust air and outside air
Redundancies for maximum operational reliability
Optimum eligibility through customized system design
Our solution: A partially load-optimized heat pump center on the roof

Apess developed a supply system that meets these requirements both technically and
economically. The energy center is installed entirely on the roof and works exclusively with heat pump technology without recoolers – compact, efficient and future-proof.

The key features of the solution:
Part-load optimized heat pump network for high efficiency in real hospital operation
Use of exhaust air as a heat source for stable performance figures throughout the year
Additional use of outside air for source optimization
Integrated heat recovery for maximum energy yield
Redundant design for high supply reliability
Modular design for fast, clean installation
intelligent control from Apess for optimum operation and minimum operating costs
Energy center from a single source – minimization of interfaces and clear responsibilities
CO₂-neutral operation possible through the use of green electricity

System overview of the energy center: heat pump network with exhaust air utilization, intelligent control and integrated distribution.

Refrigerant strategy: Future-proof thanks to low GWP

R513A is proposed as the refrigerant for the project.

It offers:
– low GWP value
– high future security
– easy to replace with propane in later modernization stages

The components of the energy center are already designed in the basic version so that a later switch to propane is possible without any problems. On request, the system can also be designed immediately as a propane system – or with any other desired refrigerant.

Technical key figures of the project

The planned system ensures a high-performance and future-proof supply:
– Heating and cooling capacity: > 250 kW
– Complete energy center including generation, distribution and control
– Optimized system architecture for low operating costs
– High security of supply thanks to redundant design
– Operation without fossil fuels and without external district heating

Proven efficiency advantage: 40 % less energy consumption

In a comparable project, an efficiency advantage of around 40 % over conventional air-to-water heat pumps was determined.

This means:
– 40 % lower energy costs
– significantly reduced CO₂ emissions
– maximum independence from the energy market

A step towards climate-neutral veterinary medicine

With this solution, the Burgdorf care center is creating the basis for sustainable, economical and future-proof clinic operations. The Apess energy center combines technical efficiency with ecological responsibility – and sends a clear signal for modern, climate-friendly veterinary medicine.