Object description
- Location: Pany (GR), Schweiz
- Photovoltaic: 17 kWp
- Heat pump: Oertli LSI 140 SHW-SG
- Storage unit size: 800l
- Cowa BOOSTER Capsules 45
"In our search for solutions for greater heating self-sufficiency with solar and heat pumps, we came across COWA. The result is a solution that doubles our heating self-sufficiency in the winter months. The co-operation with COWA is very pleasant. The solutions we have implemented are professional and practical."
Results
Thanks to the support of the building owner, the heating self-sufficiency was already measured in the heating period 21/22 without Cowa's technology.
In Autumn 2022, the system was upgraded with Cowa BOOSTER technology. The existing storage tank was filled with our capsules and nothing else was changed to the system hydraulically or electrically. The evaluation of the heating self-sufficiency shows that this can be roughly doubled over the entire heating period.
Heating system for the future
Thanks to this simple retrofit with Cowa's technology, the customer saves on heating costs and the interaction between the photovoltaic system and heat pump is optimised. The heating transition away from fossil fuels towards electrified, decentralised heating solutions is technically feasible and makes economic sense in the long term.