A nationwide retrofit strategy could cut 51% of emissions from large buildings in Canada, according to a new Canada Green Building Council (CaGBC).
The report includes recommendations that CaGBC says would reduce 21 million tons of carbon by 2030, help the government achieve its climate change goals, and grow the economy. CaGBC researchers analyzed how the type, size, and age of large buildings, along with energy sources and the carbon intensity of regional electrical grids in Canada, can affect energy efficiency and carbon emissions.
Among the findings and recommendations:
- Buildings including office buildings, shopping malls, universities, and arenas constructed between 1960 and 1979 represent the age class with the largest opportunity for carbon emissions reductions.
- Alberta and Ontario currently emit the most carbon. This is due to the carbon intensity of Alberta’s electricity grid and the number of large buildings in Ontario.
- All provinces will need to prioritize recommissioning for large buildings (between 25,000 sf and 200,000 sf) and deep retrofits for buildings over 35 years old. These two actions will reduce emissions by 4.1 MT CO2e, providing 62% of the reduction needed to meet the goal.
- Fuel switching must be completed in 20% of buildings over 35 years old across Canada. Currently, fuel switching is particularly attractive in provinces with clean electricity grids such as British Columbia, Manitoba, Quebec, New Brunswick, and Newfoundland. In these regions, significant effort should be put into increasing the adoption of highly efficient heat pump technology.
- In provinces with carbon intense electricity grids—Alberta, Saskatchewan, New Brunswick, and Nova Scotia—30% of buildings will need to use renewable energy in order to meet the target.
Related Stories
Sustainability | Aug 30, 2016
New federal project plans must include climate impacts
Agencies must quantify the specific impacts when possible.
Green | Aug 29, 2016
Vancouver, B.C., to require zero emissions on new buildings by 2030
No net GHG emissions will be allowed.
Codes and Standards | Aug 25, 2016
Freddie Mac extends efforts to fund multifamily energy/water efficiency projects
The Multifamily Green Advantage targets existing buildings.
Codes | Aug 24, 2016
Weak building codes no match for recent natural disasters, say industry experts
The recent floods and wildfires in Alberta are being cited as proof.
Legislation | Aug 24, 2016
World Trade Center contractor found guilty of minority-owned business fraud
The company used two minority firms as fronts in a nearly $1 billion scheme.
Codes and Standards | Aug 22, 2016
Federal construction contractors propose reforms to federal project delivery
Industry leaders offer how procurement system could be improved.
Legislation | Aug 19, 2016
California lawmakers may take action to address contractor negligence
An assembly committee heard testimony on deadly balcony collapse that occurred last year.
Energy Efficiency | Aug 17, 2016
Investor Confidence Project aimed at raising trustworthiness on energy efficiency projects
The new initiative screens projects to see if they are investor-ready.
Standards | Aug 17, 2016
U.K.’S BREEAM green building standard enters U.S. market
The standard is touted as a cost-effective alternative to LEED.
Standards | Aug 16, 2016
Standard for conducting, reporting energy audits open for review
A joint ASHRAE/ACCA proposal seeks comments from industry professionals.