What if you could talk to your peers about optimizing your heat pump system?

19 Aug 2025

Share your best practices and successes, but also seek their advice and expertise on the blocking points of your optimization? Take advantage of collective intelligence to overcome optimization bottlenecks, while creating best practices and avoiding pitfalls in your current and future projects? Those questions motivated the creation of “Suivi et Optimisation des Systèmes de Pompes à Chaleur” (SOS PAC).

What is SOS PAC?

Sharing of experiences in the Optimization of HP Systems (SOS PAC) – is a unique group where engineers and heat technicians share their experience in monitoring and optimization of large capacity air-to-water heat pump systems used for space heating and domestic hot water production.

By exchanging their experiences, the participants can share their good practices as well as benefit from the group’s collective intelligence in the resolution of blocking points.

How does it work?
Organized by SIG-éco21 (a specialized team form the utility company of the Canton of Geneva), engineers and heat technicians in charge of the optimization and maintenance of existing HP systems are invited to share their ongoing work 3 times/year. In addition to these participants, heat pump suppliers, the University of Geneva and the local energy authority are also invited to increase the quality of the discussions.

To ensure transparency and trust amongst all participants, all members sign a NDA.

So far, the multiple benefits of such a group are:

– optimization of the HP systems

– skill enhancement of the participants

– a network of professionals of this domain

– communication between the different professional branches

– emergence of good practices, lessons learned and real examples that can feed training courses for both engineers and heat technicians

Concerning the last point, the University of Geneva is currently working on a quantitative and qualitative summary, for dissemination of (anonymously) quantitative technical indicators, as well as qualitative aspects concerning the strong and weak points and lessons learned gathered from the various projects.

This project is shared with you from the Annex 62 group, fostering international collaboration on Heat Pumps for Multi‑Family Residential Buildings in Cities.

Author: Carolina Fraga