Abstract: In a building automation system, a method for automating a building includes a step of acquiring at least one data time history from a sensor or from a meter. The data time history is averaged and the averaged data time history is fitted into at least one occupancy pattern. The occupancy pattern covers a given time span. At least one set point is determined from the occupancy pattern and the at least one set point is fed into a system for heating, ventilation, and/or air-conditioning. In the novel system the at least one data time history is acquired from an element of standard infrastructure.

Abstract: User acceptance of energy-optimized room automation can be improved by determining a first value which is a measure of the utilization of the energy used for holding the comfort variable in the comfort band predetermined for the comfort variable in a first operating mode of a room automation system, detecting an event initiated by a user, through which the operating mode of the system is changed, determining a second value which includes a measure for change of energy utilization for keeping the comfort variable in the comfort band applicable for the comfort variable in the changed operating mode of the system, determining a comparison value through which a relationship between the first value and the second value is able to be quantified, and evaluating the comparison value and correspondingly updating information provided to the user in relation to the current utilization of the energy used for the comfort variable.