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.

Residential Prototype Building Models Complete Set - Climate Zone 5C
Document Type: Model Data | Publication Date:

The International Energy Conservation Code (IECC) prototype building models (prototype models) were developed by Pacific Northwest National Laboratory (PNNL), in support of DOE's Building Energy Codes Program (BECP), to simulate energy savings associated with changes in energy codes and standards. For residential buildings, PNNL utilized two base prototypes to simulate both Single-family detached house, and Multi-family low-rise apartment building types. Energy models for the recent versions of the IECC are available for each climate.

EnergyPlus Residential TMY3 Weather Data file - 3AWH Montgomery
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - All Climate Zones
Document Type: Model Data | Publication Date:

Zip file of EnergyPlus TMY3 weather files for climate locations associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 8 Fairbanks
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 7 International Falls
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 6B Great Falls
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 6A Rochester
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 5B Denver
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 5A Buffalo
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 4C Seattle
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 4B Albuquerque
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 4A New York
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 3C San Diego
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 3B El Paso
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 3A Atlanta
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 2B Tuscon
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 2A Tampa
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 1A Miami
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

EnergyPlus Residential TMY3 Weather Data file - 1A Honolulu (Tropical)
Document Type: Model Data | Publication Date:

EnergyPlus TMY3 weather file for climate location associated with the IECC Prototype Building Models.

Residential Prototype Building Models Complete Set - Climate Zone 8
Document Type: Model Data | Publication Date:

The International Energy Conservation Code (IECC) prototype building models (prototype models) were developed by Pacific Northwest National Laboratory (PNNL), in support of DOE's Building Energy Codes Program (BECP), to simulate energy savings associated with changes in energy codes and standards. For residential buildings, PNNL utilized two base prototypes to simulate both Single-family detached house, and Multi-family low-rise apartment building types. Energy models for the recent versions of the IECC are available for each climate.

Residential Prototype Building Models Complete Set - Climate Zone 7
Document Type: Model Data | Publication Date:

The International Energy Conservation Code (IECC) prototype building models (prototype models) were developed by Pacific Northwest National Laboratory (PNNL), in support of DOE's Building Energy Codes Program (BECP), to simulate energy savings associated with changes in energy codes and standards. For residential buildings, PNNL utilized two base prototypes to simulate both Single-family detached house, and Multi-family low-rise apartment building types. Energy models for the recent versions of the IECC are available for each climate.