The home in Vancouver’s Point Grey neighbourhood generates more energy than it consumes and demonstrates how a highly efficient building is also more resilient to the effects of climate change, such as bouts of extreme heat, and smoke from wildfires that persisted well into this autumn in southwestern British Columbia.
A prolonged heat wave that sent temperature records tumbling across British Columbia in June 2021 underscored the importance of climate-resilient housing. “Why build a code-minimum house now, and then an energy hog in 10 to 20 years?” Lilley added. “Whereas, if you build a house like this today, if you’re going to sell it in 10 to 20 years, you’ve already got a house that meets the future standard.”
“When you look at places around the world that have adopted Passive House or other kinds of efficiency standards, after four or five years of doing it, you get to a point where it doesn’t really cost much more than the status quo,” he said. Advances in glazing technology have produced windows with a higher level of insulation and lower solar heat gain, said Kadulski, noting their cost has been decreasing as the domestic market becomes better equipped to supply them.
“If they build elsewhere, they can just keep doing it their same old way. They don’t have to retrain or invest in developing new practices.” The Canadian Net-Zero Emissions Accountability Act signed into law last summer commits the country to achieving net-zero emissions by 2050. That means the entire economy should produce either no emissions, or they must be offset.
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