Model Predictive Control (MPC, an advanced control strategy that anticipates future system behavior using a predictive model) has been operational since September 2025, following the upgrade of the HVAC systems (Heating, Ventilation and Air Conditioning systems responsible for indoor climate control) have been upgraded.

After several months of operation, Builtwins is now preparing to disable MPC and  operate the Rule-Based Control (RBC, a control approach based on predefined rules and fixed thresholds) again until June 2026. The objective of this phase is to collect a new reference dataset of measurements for the upgraded system while operating under RBC.

As a result of the system upgrade, more thermal power is available and should enable better comfort than before. Consequently, this new RBC reference dataset will allow a more objective comparison of the results with the MPC dataset. At the same time, Builtwins will update the RBC parameters to ensure the system can deliver this additional heat to the system.

Meanwhile, over the coming months, Builtwins will also work on upgrading the MPC methodology by integrating a calibration method. More specifically, the calibration will use measurements from the rooms and the HVAC system to improve the accuracy of the model. Finally, this calibrated model is scheduled to become operational next winter.