01152nas a2200205   4500000000100000008004100001653003100042653001600073653002400089100001500113700002100128700001900149700001800168700001300186700002700199700002200226245006600248856008700314520054500401       2010                            d10abuilding monitoring system10adaylighting10aglazing performance1 aLars Grobe1 aStephen Wittkopf1 aAnupama Panday1 aYang Xiaoming1 aAng Seng1 aJean-Louis Scartezzini1 aStephen Selkowitz00aSingapore's Zero-Energy Building's daylight monitoring system  uhttp://infoscience.epfl.ch/record/148579/files/icae2010.singapore%27szero.2010.pdf3 aA setup to monitor the daylighting performance of different glazing types in Singapore is presented. The glazing is installed in the facade of four dedicated testing chambers in BCA's Zero Energy Building in Singapore. These test rooms are equipped with sensors that both record illuminances on the work plane, and luminances as seen by occupants. The physical and logical design of the monitoring system is presented. Criteria to assess the daylighting performance are introduced, and initial results of the work in progress are presented.