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
Codes and Standards | Jan 9, 2019
Policymakers need to act to alleviate affordable housing crunch
Moody’s economist says costs including mortgage rates worsening situation.
Codes and Standards | Jan 8, 2019
Pittsburgh launches task force on construction industry fraud
Focus will be on wage violations.
Codes and Standards | Jan 7, 2019
Program uses low-cost sensors to monitor impact of stormwater mitigation systems
University/municipal partnership in Philadelphia aims to improve green infrastructure design.
Codes and Standards | Jan 7, 2019
Washington, D.C., to transition to 100% renewable energy by 2032
Includes measures to reduce emissions from buildings and transportation.
Codes and Standards | Jan 4, 2019
Canada’s National Building Code will include climate change obligations
New durability requirements for new buildings in the works.
Codes and Standards | Jan 4, 2019
LEED v4.1 beta registration begins in January
First releases are O+M, BD+C, and ID+C.
Codes and Standards | Jan 3, 2019
U.S. Appeals Court says general contractors can be cited for subcontractor violations
Ruling will prompt review of OSH decision that said GCs cannot be held liable for subs’ violations.
Codes and Standards | Jan 3, 2019
Tall mass timber code changes receive final approval
New provisions to be included in the 2021 International Building Code.
Codes and Standards | Jan 2, 2019
ASHRAE’s Low-Rise Residential Buildings standard update now available
Performance measures are at least 50% more efficient than 2006 IECC.
Codes and Standards | Jan 2, 2019
Study compares labor hours for various low-slope roofing options
Type of roof covering, project parameters, tool management, and crew efficiency all impact profitability.