Saving energy by maximising daylight and minimising the impact on occupants: An automatic lighting system approach

•Definition of a state-of-the-art DL/EL automatic system based upon surrogate models.•Thisapproach allows to compute KPIsfast enough for quasi-real time system update.•A user experiment (N=60) assessed the comfort and performance provided by our system.•Our system reduced lighting energy while keeping occupants' comfort and performance.