National Cost-Effectiveness of the Residential Provisions of the 2024 IECC

Technical Report · Fri Jan 17 04:00:00 EST 2025

DOI:https://doi.org/10.2172/3000556· OSTI ID:3000556

Salcido, Victor Robert ^[1]; Chen, Yan ^[1]; Xie, YuLong ^[1]; Jung, Yun Joon ^[1]; Feng, Fan ^[1]; Faulkner, Cary A. ^[1]; Xie, Jiarong ^[1]

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1. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

This analysis focuses on single-family and low-rise multifamily residential buildings based on the International Energy Conservation Code (IECC). The IECC is developed by the International Code Council (ICC) on a 3-year cycle through a public development and consensus process. While proponents of code changes often include the energy and cost-effectiveness criteria for their respective code change, the IECC process does not include an energy or cost-effectiveness analysis of the entire edition of the code. PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2024 edition of the IECC, hereafter referred as the 2024 IECC, compared to those in the prior edition, the 2021 IECC. The simulated performance path and the Energy Rating Index (ERI) path (introduced in the 2015 IECC) are not considered in this analysis due to the wide variation in building construction characteristics that are allowed.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Building Technologies Office
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 3000556
• Report Number(s): PNNL--35986
• Country of Publication: United States
• Language: English

Related Subjects

2024 IECC
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
Building Energy Codes
residentail energy codes