Active participation of buildings as a source of energy flexibility

Controllable building load systems like Air Handling Units (AHU), chillers and humidifiers are important in demand side flexibility as they can be
switched on/off or increase/decrease in capacity, during power grid congestions and as balancing services. In this study the role of the demand-side is investigated, based on data of a typical Dutch office building with an integrated Battery Energy Storage System (BESS). Experimental studies are conducted related to Demand-Side Management (DSM) strategies, with the focuses on the effects of chiller load shifting operations. The thermal comfort is assessed during the load shifting operations with the use of adaptive temperature limits (ATG). As the load system flexibility potential depends on the thermal comfort; load systems remain limited to the boundaries of comfort. Based on the chiller load shifting results, the BESS is discharged with interval step current as resource to lengthen the load shifting operations.