Publications

National Cost-effectiveness of 2018 IECC
Document Number: PNNL-28515 | Document Type: Analysis, Cost-effectiveness | Publication Date:

In this analysis, PNNL evaluated the cost-effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2018 edition of the IECC compared to those in the prior edition, the 2015 IECC.

2015 IECC: Energy Savings Analysis
Document Number: PNNL-23977 | Document Type: Analysis, Determination | Publication Date:

Technical analysis in support of the 2015 IECC Determination.

Energy Savings Analysis: 2018 IECC for Residential Buildings
Document Type: Analysis, Determination | Publication Date:

Technical analysis in support of the 2018 IECC Determination.

Preliminary Energy Savings Analysis: 2021 IECC for Residential Buildings
Document Number: PNNL-31018 | Document Type: Analysis, Determination, Technical Support Document | Publication Date:

The most recent edition, the 2021 IECC, was published on January 29, 2021, triggering the DOE review and determination process2. DOE and Pacific Northwest National Laboratory (PNNL) conducted a technical analysis to determine energy savings for the 2021 IECC residential provisions relative to the previous edition, the 2018 IECC (ICC 2017). This report documents the methodology used to conduct the analysis and summarizes the results.

Preliminary Energy Savings Analysis: 2018 IECC Residential Requirements
Document Number: DOE/EE-1972 | Document Type: Analysis, Determination, Technical Support Document | Publication Date:

The most recent edition, the 2018 IECC, was published in August 2017, triggering the DOE review and determination process. In response, DOE and Pacific Northwest National Laboratory (PNNL) conducted a preliminary analysis to determine energy savings for the 2018 IECC residential provisions relative to the previous edition--the 2015 IECC. This report documents the methodology used to conduct the analysis and summarizes the results and findings.

HERS and IECC Performance Path
Document Number: PNNL-22560 | Document Type: Analysis | Publication Date:

Pacific Northwest National Laboratory analyzed the relationship between the Residential Energy Services Network (RESNET) Home Energy Rating System (HERS) Index and the traditional simulation-based Performance Path used in the International Energy Conservation Code (IECC). The analysis evaluates, for a single-family residence with various characteristics, the ranges of HERS Index values that would imply compliance with the 2012 IECC Performance Path. Several building characteristics considered likely to result in quantifiable differences in the outcomes of the two approaches, or otherwise believed to be of interest to code developers and policy makers, are considered in the analysis.

Energy Savings Analysis: 2021 IECC for Residential Buildings
Document Number: PNNL-31440 | Document Type: Analysis | Publication Date:

The most recent edition, the 2021 IECC, was published on January 29, 2021, triggering the DOE review and determination process. DOE and Pacific Northwest National Laboratory (PNNL) conducted a technical analysis to determine energy savings for the 2021 IECC residential provisions relative to the previous edition, the 2018 IECC (ICC 2017). This report documents the methodology used to conduct the analysis and summarizes the results.

Cost-effectiveness Analysis of 2021 IECC - Wyoming
Document Number: PNNL-31631 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - Wisconsin
Document Number: PNNL-31630 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - West Virginia
Document Number: PNNL-31629 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - District of Columbia
Document Number: PNNL-31590 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - Virginia
Document Number: PNNL-31627 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - Vermont
Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - Utah
Document Number: PNNL-31626 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - Texas
Document Number: PNNL-31625 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - Tennessee
Document Number: PNNL-31624 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - South Dakota
Document Number: PNNL-31623 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - South Carolina
Document Number: PNNL-31622 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - Rhode Island
Document Number: PNNL-31621 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - Pennsylvania
Document Number: PNNL-31620 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - Oregon
Document Number: PNNL-31619 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - Oklahoma
Document Number: PNNL-31618 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - Ohio
Document Number: PNNL-31617 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - North Dakota
Document Number: PNNL-31616 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.

Cost-effectiveness Analysis of 2021 IECC - North Carolina
Document Number: PNNL-31615 | Document Type: Analysis, Cost-effectiveness | Publication Date:

PNNL evaluated the cost effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2021 edition of the IECC, compared to those in the prior edition, the 2018 IECC.