As a consequence of globalization and developing economies becoming more mature, airports face increasing passenger numbers. It is the case that large airports are energy intensive buildings with an electricity consumption ranging between 100 - 300 GWh anually. Within ATBs (Airport Terminal Buildings) the BHS (Baggage Handling System) is categorized as a high energy consuming system. As for the BHS, conveying equipment is the main consumer of energy (55% to 70%). From the perspective of a designer it is very hard to predict energy consumption in evaluation of conceptual designs and therefore energy consumption is often not given the attention it deserves at this stage of design due to the fact that baggage handling performance is dependent on many dependent variables and dynamically changing demands. As a consequence the use of dynamical models is necessary. In this research a generic simulation model has been created to investigate energy consumption. The applicability of the model has been tested on two conceptual design lay outs.