Design Energy Code Equivalents |
Design Energy Code | Approximate % Reduction from Average |
ASHRAE 90.1-1999 | 10% |
ASHRAE 90.1-2001 | 10% |
ASHRAE 90.1-2004 | 25% |
ASHRAE 90.1-2007 | 31% |
ASHRAE 90.1-2010 | 42% |
ASHRAE 90.1-2013 | 46% |
ASHRAE 90.1-2016 | 50% |
California Title 24 2005 for high rise residential | 35% |
California Title 24 2005 for single family residential | 30% |
California Title 24 2008 | 40% |
California Title 24 2010 | 40% |
California Title 24 2013 | 48% |
California Title 24 2016 | 53% |
California Title 24 Non Residential 2008 | 40% |
California Title 24 Residential 2005 | 35% |
California Title 24 Residential 2008 | 40% |
IECC 2003 | 10% |
IECC 2006 | 20% |
IECC 2009 | 31% |
IECC 2012 | 42% |
IECC 2015 | 46% |
| IECC-2018 | 49% |
*NECB 2011 | 45% |
| *NECB 2015 | 51% |
| *NECB 2017 | 55% |
Older than 1999 | 0% |
Massachusetts Stretch Code | 52% |
Oregon Energy Code | 25% |
Oregon Energy Code 2010 | 34% |
Oregon Energy Code 2014 | 40% |
Oregon Energy Efficiency Specialty Code 2010 | 25% |
Oregon Energy Efficiency Specialty Code 2014 | 40% |
Washington Energy Code | 25% |
Washington Energy Code 2012 | 25% |
Washington Energy Code 2015 | 48% |
Note: These are estimates of code comparison based on analyses by Pacific Northwest National Laboratory, New Buildings Institute, and Architecture 2030. These percentages are provided to enable the inclusion of non-modeled projects in analysis for the AIA 2030 Commitment.
*Source for this code is from the National Research Council Canada and New Buildings Institute. |