−25-30%
on the annual bill.
Zoned, dimmable lighting, KNX thermostats per room, real-time consumption monitoring, zoned irrigation. The systems pay for themselves in 3-7 years and raise the resale value of the property.
zoned lighting · monitoring
Eight components that cut consumption.
Each one brings 2-5% savings. Combined, we reach 25-30% a year. The figures observed with our clients.
Zoned lighting
DALI or KNX. Dimming on every circuit, automatic presence, integration with daylight.
Zoned climate
A KNX thermostat per room. Settings by schedule and presence. Complex HVAC integration (VRF / VRV).
Blinds / curtains
Somfy Sonesse or KNX motors. Closed against heat, open for light. 10-15% off the climate bill.
Consumption monitoring
Current sensors on key circuits. See in real time what uses the most. Local data, not cloud.
Day/night scenes
Away = everything non-essential off. Morning = bathroom pre-heated. Evening = automatic drop to 20°C.
Smart irrigation
Independent zones, seasonal scheduling, stops on the rain sensor. For villas with a garden.
Flood detectors
Under sinks + next to the water heater. Water valve shut-off on a leak. Prevents bills of thousands of euros.
Controlled ventilation
Heat-recovery units integrated with a CO₂ sensor. Runs only when needed. 30% less on heating.
The maths of a 250 m² villa.
Typical annual bill (without smart)
| Lighting (8,000 kWh) | €1,200 |
| Climate + heating | €2,800 |
| Water + irrigation | €600 |
| TOTAL | €4,600 |
With smart (−25-30%)
| Zoned lighting + DALI | €840 (−30%) |
| Zoned climate + blinds | €1,960 (−30%) |
| Smart water + irrigation | €450 (−25%) |
| TOTAL | €3,250 |
Annual saving: €1,350. On a complete €12,500 system, ROI in 9 years — but add the 5-15% rise in property value, which recovers the cost on day one.