Energy Monitoring & IoT: How Smart Rooms Cut Operating Costs

Electricity is one of the largest operating expenses for any hotel. Motion sensors, automated HVAC control, and real-time consumption tracking can reduce it significantly — without guests noticing any difference in comfort.

The problem: energy wasted in empty rooms

In a typical hotel, rooms consume energy even when empty. The air conditioning runs at full power, lights stay on, and the TV sits in standby. In a 14-room property, that translates to hundreds of euros per month going to waste.

The issue is not staff negligence. It is the lack of real-time information. No one can check every room every hour. Unless it happens automatically.

Motion sensors and room status awareness

The foundation of any IoT strategy starts with a simple question: is someone in the room?

At Sette Suites & Rooms, every room has motion sensors and radar that feed a central building management system. The system knows at any given moment whether a room is occupied or empty, and how long it has been empty.

This information drives automations:

• Auto lights-off — If a room is empty for 30 minutes with no motion detected, lights turn off automatically. The automation runs four times daily and covers spots, curtain LEDs, mirror LEDs, and bathroom lights.
• Room status — Each room reports whether it is occupied or vacant, allowing housekeeping to schedule cleaning without disturbing guests.
• Security alerts — Motion in common areas and entrances is monitored in real time and combined with camera feeds for a complete picture.

Automated HVAC control based on occupancy

Air conditioning is the largest energy consumer in a hotel, especially during summer. Connecting HVAC to the PMS and motion sensors creates a system that adapts automatically.

In practice, this means:

• Room preparation before arrival — At 14:00, rooms with a same-day check-in are automatically set to a welcome temperature: HVAC on, lights adjusted, blinds positioned.
• Automatic reduction after checkout — At 12:00, departed rooms switch to energy-saving mode. HVAC turns off, lights go dark.
• Per-room data via AI — The hotelier can ask via Telegram which rooms have HVAC running, at what temperature, and whether there is any motion inside.

The result: HVAC operates only where and when needed, without the guest feeling any difference in comfort.

Real-time consumption tracking

Savings without measurement cannot be proven. That is why a complete IoT system includes consumption monitoring:

• Three-phase metering — Real-time kWh consumption per phase, with cost in euros.
• Solar tracking — Photovoltaic production and building energy balance.
• Boiler and heat pump — Operating status, water temperature, automatic alerts if something malfunctions.
• Historical data — Month-over-month comparison, waste pattern detection, documented results.

This data is accessible through the AI agent — a single question in Telegram is enough to learn how much energy costs today or which room consumes the most.

Integration with building management

Standalone IoT gadgets are not enough. Real value comes when all systems talk to each other:

• PMS + IoT — The reservation system informs room automations. Check-in means automatic preparation, checkout means energy saving.
• Cameras + sensors — Motion in outdoor areas combines with face recognition for staff and guest identification.
• Smart locks + status — Unlock events feed the automation: which room was just unlocked, by whom, when.
• Maintenance alerts — If the heat pump is unresponsive or a room temperature deviates from its setting, the hotelier is notified immediately.

At Sette Suites, this means over 2,300 entities (sensors, switches, HVAC units, cameras) are managed centrally through a unified system. The hotelier sees everything from one place — or simply asks the AI.

Hotelio AI — The intelligent operating system for your hotel.