NCEUB Conferences, MC2014 Masters Conference People and Buildings

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Energy Consumption and Environmental Impact Assessment of the Energy efficient Houses in Toronto, Canada
SAMIRA ZARE MOHAZABIEH, Mahssa Ghajarkhosravi, Alan Fung

Date: 2014-09-19 02:40 PM – 02:50 PM
Last modified: 2014-09-18


The two identical energy efficient houses, “Energy Star” House (EH) and “Green” House (GH), located in Ontario were chosen to investigate the effectiveness of energy efficiency measures in dwellings. EH was built based on the Energy Star standard while GH had a number of additional energy savings and sustainable green features. Both houses’ energy consumption were simulated and their utility bills weather normalized by using HOT2000 building energy simulation software and Princeton Scorekeeping Method (PRISM). Although GH is expected to consume less energy than EH, considering GH’s more energy efficient mechanical system and tighter building envelope, this study shows that the as occupied EH consumes less energy than the as occupied GH (annual energy consumption of EH is 44% less than GH). Further investigation on occupants’ behaviour and usage of the both houses using a survey shows that having an energy efficient system cannot necessary lead to lower energy consumption.

Key words: Weather Normalization, Dwelling Energy Consumption, Building Energy Simulation