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Energy Use and Greenhouse Gas Emissions in Canadian Homes: A 1990-2010 Analysis

This report by the Canadian Renovators' Council provides an in-depth examination of energy use and greenhouse gas emissions in Canadian homes from 1990 to 2010. It includes CHBA’s annual updates on residential sector performance, highlights changes in new home construction based on CHBA/CanmetENERGY analysis, and explores future energy retrofitting potential. The report compares energy efficiency trends, evaluates existing home performance, and identifies areas of improvement. This analysis aims to inform stakeholders about energy efficiency advancements and the impact on greenhouse gas reductions.

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Energy Use and Greenhouse Gas Emissions in Canadian Homes: A 1990-2010 Analysis

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Presentation Transcript

  1. Recognizing Success Energy Use & Greenhouse Gas Emissions in Canadian Homes 1990 – 2010 Canadian Renovators’ Council, October 2012

  2. Three Part Report: • CHBA’s Annual update on Residential Sector performance. • Closer examination of how new homes have changed based on CHBA/CanmetENERGY analysis. • Future potential for energy retrofitting.

  3. Residential Share of Canada’s GHGs 1990 2010 Source: NIR/EC 2012

  4. Sector Changes in GHG Emissions1990 - 2009 Source: CEUD 2012

  5. Trends in Stock and Energy Use1990 = 0 Source: CEUD 2012

  6. Energy Intensity Trends1990 = 0 Source: CEUD 2012

  7. Efficiency Trends by House Vintage

  8. How Have New Homes Changed?

  9. Comparing “Apples to Apples” • Total stock trends are useful, but they don’t tell us much about how new homes have changed over time. • Existing home energy performance is a ‘moving target’. • When comparing old and new homes, what do we learn if we base this on the ‘as built’, rather than ‘as found’ specifications?

  10. Our “Apple” • 2,100 sq. ft. two-storey home in Ottawa circa 1973 (Four-Square). • Initial “As Built” specifications from CMHC/HUDAC costing studies of that time. • Additional specifications generated by CanmentENERGY, OBC 2012, R-2000 (2012). • Only envelope and mechanical specifications altered to those ‘typical’ of new construction in each period. • ‘As Found’ specifications from initial (pre-grant) ERS evaluation. • All data generated using HOT2000 V. 10.51

  11. ‘As Built’ = ERS 41 • ‘As Found’ = ERS 63 = 28.7% improvement • ‘Post ecoENERGY Grant’ = ERS 72 = 44.5% improvement • Same home built to 2012 OBC would consume 66% less energy than mid-1970s spec.

  12. EnerGuide Ratings & Percentage Efficiency Gain

  13. Some ‘Low Hanging Fruit’ Remains

  14. Filling Out the Household Picture:a 69’ Chevy Impala in the driveway

  15. So How’s Detroit Doing? 1969 Chevy Impala 2012 Chevy Impala

  16. 15.8% Improvement in 43 Years

  17. . . . and the Impala’s a ‘success story’

  18. On “Apples to Apples” Basis: 15.8% Increase in ‘Combined’ Fuel Efficiency 66% decrease in total energy consumption (ERS 41 to ERS 79) 78.5% decrease in space heating energy consumption

  19. Questions/Discussion?

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