PhD Thesis - Energy Systems Research Unit - University of Strathclyde

2.4.4.3 6 Household buildingAs mentioned in Section 2.3.2 in order to analyse the effect of building size andoccupancy, a second enlarged building was modelled with each floor representingthe internal space taken by two storeys. The electrical demand of each floor in thiscase was modelled to represent the electrical demand profile of two households.To model the demand profile of this 6 household building, the demand profiles ofhouseholds 2B, 3A and 4A (whose characteristics are shown in Table 2.9) wereindividually added to the profiles of the households used to model the electricaldemand profiles of the 3 household building. The electrical demand profile ofhousehold 2B was added to that of household 4B to represent the electrical demandof the enlarged top floor. The electrical demand profile of household 3A was addedto that of household 2B to represent the electrical demand of the enlarged groundfloor and the electrical demand profile of household 4A was added to household 3Bto represent the electrical demand of the enlarged middle floor.Apart from increasing the electrical energy demand, aggregating the load profiles ofthe different households also creates a temporally different load, (slightly) levels outthe load demand, increases the average demand and shifts peak demands. Figure 2.25shows one such aggregation between household 2B and household 3A for acharacteristic day in May. The resulting demand profile is that of the 2-householdground floor in the 6 household building.Fig. 2.25 - Aggregation used to generate the electrical demand profile for the 2-household ground floor for a characteristic day in May66