PhD Thesis - Energy Systems Research Unit - University of Strathclyde

For each appliance in each household, Stage 1 of the transformation was used tocalculate the total energy consumption of a characteristic day for each of the 12months. Given the limitations in the original dataset described previously, using theapproach presented previously only a single representative day could be generatedfor each month, giving a possible 12 characteristic days covering the entire year.Nonetheless, this was enough to capture the salient features of the demand.Figure 2.8 (for example) shows how the modelled daily electrical energyconsumption for the individual appliances in household 2A varies over the course ofa calendar year. The impact of seasonality on the daily electrical energy consumptionof appliances such as refrigerators and lighting fixtures is very clear; high electricalenergy consumption in the former case and low electrical energy consumption in thelatter case during the summer months, and vice versa during the winter months.Fig. 2.8 - Daily electrical energy consumption for household 2A by appliance typeThe annual electric energy consumption is the total addition of the individual resultsof the product of the daily electrical energy consumption, calculated for eachcharacteristic day of each month and the number of days present in each month.Table 2.10 lists down the results obtained for each individual household.57