Office building

Office building

Bollwerk 10/12, 3011 Bern

Initial situation

As part of a pilot project, we were allowed to start optimizing SBB's Bollwerk 10/12 office building in 2023. The existing building automation system did not record any historical data - a key obstacle to sustainable optimization. There was also a lack of important room and zone data to check the HVAC settings (heating, ventilation, cooling) in a meaningful way.

Solution

By connecting the HVAC controls in the Oxoia platform and the targeted use of additional sensors in selected rooms, a solid data basis was created. Our platform analyzed the collected data quickly and precisely. Specific optimization measures were derived from this in close cooperation with the facility management. The system integrator implemented these recommendations directly in the building automation system - from correcting faulty sensors to fine-tuning ventilation, heating and cooling.

Results to date

Impressive savings were already realized in the first year:

  • Operating costs: -24,000 CHF/year
  • Energy consumption: -120 MWh/year
  • CO2 emissions: -11 tons of CO2 emissions/year
  • Heat consumption: -11 %
  • Power consumption (pumps, valves, fans): -44 %

Further proof that data-based optimization works - simply, efficiently and sustainably.