Electricity Demand Profile of Heating and Cooling Appliances in Australian Low Energy Residential Buildings
This study investigates electricity usage patterns of heating and cooling (H/C) appliances and their contribution on the total electricity consumption and peak demand of low energy Australian dwellings. This study analyses the energy usage data of H/C appliance collected from in-home energy monitoring systems installed within a number of houses in the Lochiel Park Green Village, South Australia. In addition, survey on householders and appliance audits were conducted to collect information regarding households and H/C appliances. This study also explores the energy consumption of the H/C appliances of individual households for various periods, e.g. yearly, seasonal, and monthly, and their impact on household respective peak electrical demand. The analysis of the monitored data demonstrates that a considerable reduction in household energy consumption can be achieved in low energy residential buildings, which is attributed to the decrease of energy consumed by H/C appliances, due to high standards of thermal comfort and the requirement of highly energy efficient air conditioning systems. Despite the reduction in H/C energy usage, the outdoor air temperature is still the most influential parameter that dictates this, whilst the number of residents and habitable floor area less significant.
Keywords - Heating and cooling appliances, low energy residential buildings, electricity monitoring, usage pattern, peak demand.