Projects
Concrete projects, measured outcomes.
A selection of representative projects from 2024-2025. For each, real figures: savings, CO₂ avoided, self-consumption, ROI.
Click any pin for details. ★ = detailed case study. Other projects are anonymized (GDPR/FADP).
Family home Nyon — Air-source heat pump + 8 kWp PV
Replaced 1998 oil boiler with a Stiebel Eltron air-source heat pump + 22 solar panels and a 10 kWh battery. Family of 4, 180 m².
- Save
- CHF 4'200
- CO₂
- 5.8 t
- ROI
- 9 yrs
Residential building Lausanne — Geothermal + 80 solar panels
Property management, 18-unit 1970s building. 4 geothermal probes (220 m), 80 panels at 410 Wp, 50 kWh battery.
- Save
- CHF 38'000
- CO₂
- 42.0 t
- ROI
- 11 yrs
Industrial SME Plan-les-Ouates — Optimization + 120 kWp
Precision mechanics workshop, 1,200 m² roof. 290 high-performance panels, integrated BMS, binary tariff optimization.
- Save
- CHF 52'000
- CO₂
- 68.0 t
- ROI
- 6 yrs
Cologny villa — Silent air-source heat pump
240 m² villa, gas replaced by Daikin Altherma air-source HP. 28 dB sound level, neighbours preserved.
- Save
- CHF 3'100
- CO₂
- 4.2 t
- ROI
- 12 yrs
Geneva primary school — 95 kWp full self-consumption
Public tender. 230 bifacial panels, classroom dashboard for educational monitoring.
- Save
- CHF 18'500
- CO₂
- 28.0 t
- ROI
- 8 yrs
Vaud farmhouse renovation — Vertical geothermal
19th-century farmhouse, 2 geothermal probes (180 m). Full heritage preservation.
- Save
- CHF 5'800
- CO₂
- 7.4 t
- ROI
- 14 yrs
Morges offices — Solar thermal for DHW
12 flat-plate collectors for DHW and supplementary heating for 800 m² offices.
- Save
- CHF 4'400
- CO₂
- 3.1 t
- ROI
- 10 yrs
Watchmaking manufacture Vallée de Joux — 220 kWp
Production workshop, strict thermal requirements. PV + fine-grained process monitoring.
- Save
- CHF 78'000
- CO₂
- 110.0 t
- ROI
- 7 yrs
Premium apartment Geneva — Thermal optimization
CECB audit, dual-flow ventilation, smart-home control. 220 m² apartment.
- Save
- CHF 1'900
- CO₂
- 1.4 t
- ROI
- 5 yrs
Vevey sports center — High-power geothermal HP
4,200 m² building with pool. 8 geothermal probes + 160 kWp PV. Storage-buffered load.
- Save
- CHF 64'000
- CO₂
- 88.0 t
- ROI
- 12 yrs
Lavaux winery — Solar for cellar
Cellar cooling + DHW via PV + thermal combo. UNESCO heritage preserved: integrated roof solution.
- Save
- CHF 9'200
- CO₂
- 12.0 t
- ROI
- 9 yrs
Fribourg care home — HP + heat recovery
90-resident care home. High-power HP + greywater heat recovery. Constant thermal comfort.
- Save
- CHF 31'000
- CO₂
- 38.0 t
- ROI
- 10 yrs