Updating and Improving the DOE Methodology for Assessing the Cost-Effectiveness of Building Energy Codes

The U.S. Department of Energy (DOE or Department) has updated its methodology for assessing the cost-effectiveness of building energy codes. The Department relies upon this methodology in evaluating both potential code changes and entire new editions of model codes, such as the International Energy Conservation Code (IECC) and the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) Standard 90.1. DOE developed its methodology through a public process, and reviews its methods regularly to ensure its underlying analysis and assumptions remain valid.