that Hotel Crystal In collaboration with viboo and siemens took an important step towards sustainable hotel management. With the implementation of an innovative heating system, energy efficiency was increased, CO2 emissions reduced and comfort for guests was increased at the same time.

The traditional Hotel Crystal is surrounded by the picturesque mountains of St. Moritz. The 1960s building faced the challenge of reducing its environmental footprint while meeting the legal requirements of the Net-Zero Initiative by 2050. Classic energy-efficient renovations offered little leeway in this case. In collaboration with an external consultant, viboo and Siemens, hotel management found the right solution.

Viboo, a Spin-off The Empa (Federal Materials Testing and Research Institute) and Xcelerator partners from Siemens, has set itself the goal of developing intelligent solutions that reduce heat consumption in buildings. It was precisely this expertise that viboo brought to the project with Hotel Crystal in St. Moritz. The hotel's core goal was to achieve significant energy savings and thus reduce CO₂-To significantly reduce emissions. Based on over ten pilot projects viboo was able to prove an average energy saving of over 25%. For Hotel Crystal in St. Moritz, savings of around 20% are expected — even with outdoor temperatures of up to -25°C in the winter months. This is achieved through a predictive heating control, which uses AI to use weather forecasts and thermal models to optimally adapt the heating output to actual requirements. In addition, the room temperature is automatically reduced at night and brought back to the desired level in the morning. In the future, the system could also be linked to the reservation tool to automatically adjust the temperature in unoccupied rooms.

Seamless integration with the Siemens Connect Box

In April 2024, the first test rooms were set up, which showed that the system works very well. These positive results led to the complete installation of the new heating system in all hotel rooms. Die Siemens Connect Box was decisive for implementing this innovative solution. It connects all devices and enables seamless integration into the existing building management system. Guests can adjust the room temperature intuitively on the wall, while technicians monitor the control system centrally from a PC — saving time in daily operations.

The combination of the intelligent heating solution from viboo and the Siemens Connect Box creates efficiency and comfort that is specifically tailored to the requirements of a modern hotel.

Sustainability as a holistic concept

In addition to the new system for temperature and heating regulation, Hotel Crystal also has measures to reduce CO in the kitchen and laundry₂-Emissions seized. The hotel is committed to reducing its environmental footprint by 2-2.5% annually — the project with viboo and Siemens is an important component in this strategy.

Pioneering role in the sector

The project with Hotel Crystal shows how innovative technologies and strong partnerships enable sustainable solutions. It sets new standards in the hotel industry and makes it clear that comfort and sustainability go hand in hand.