Publications

To receive updates about BECP publications subscribe to the BECP Mailing List.

Additional resources are also available from the Building America Solution Center.


Document type: Analysis, Technical Support Document
Publication Date: August 2014
Page Focus: Code Development

This report documents the technical analysis used to evaluate whether residential buildings constructed to meet the requirements of the 2015 IECC would result in energy efficiency improvements over residential buildings constructed to meet the requirements of the previous edition, the 2012 IECC.

Document type: Other
Publication Date: September 2012
Page Focus: Adoption, Code Development, Compliance, Enforcement

Buildings account for almost 40% of the energy used in the United States and, as a direct result of that use, our environment and economy are impacted. Building energy codes and standards provide an effective response. The Building Energy Codes Program designed the Adoption, Compliance, and Enforcement (ACE) Learning Series for those in the building industry having the greatest potential to influence the adoption of and compliance with building energy codes and standards. Each toolkit in the ACE Learning Series delivers essential information to enable designers, specifiers, builders, building owners, policy makers, code officials, and others involved in building design and construction to understand the important role building energy codes play in helping us all address our energy, economic, and environmental challenges.

Document type: Other, Program Information, Reports and Studies
Publication Date: February 2010
Page Focus: Adoption, Code Development, Compliance

In order to provide a basic introduction to the varied and complex issues associated with building energy codes, the U.S. Department of Energy’s Building Energy Codes Program, with valued assistance from the International Codes Council and ASHRAE, has prepared Building Energy Codes 101: An Introduction. This guide is designed to speak to a broad audience with an interest in building energy efficiency, including state energy officials, architects, engineers, designers, and members of the public.

Document type: Resource Guide
Publication Date: June 2011
Page Focus: Adoption, Code Development, Compliance

This guide provides key information to policy makers on energy codes and standards and offers guidance on how policy makers can support the creation of statewide energy efficiency goals and standards. In addition, this guide instructs policy makers on how they can:

  • Encourage the adoption of statewide codes.
  • Establish energy code awareness programs.
  • Support enforcement of and compliance with energy codes.
  • Participate in the development of model codes and standards.
  • Determine the viability of the new code.
Document type: Reports and Studies
Publication Date: April 2009
Page Focus: Adoption, Code Development, Compliance

At the request of the U.S. Department of Energy, the Joint Global Change Research Institute has prepared a series of reports surveying building energy codes in seven of the Asia-Pacific Partnership on Clean Energy and Climate (APP) countries. These reports include country reports on building energy codes in each APP partner country and a comparative report based on the country reports.

Document type: Presentation
Publication Date: July 2009
Page Focus: Code Development

This July 2009 presentation details the U.S. Department of Energy Building Energy Codes Program's game plan and progress report regarding the development of energy efficiency standards for manufactured housing.

Document type: Brochures/Fliers, Program Information
Publication Date: July 2011
Page Focus: Adoption, Code Development, Compliance

As our country continues to focus on saving energy and reducing emissions in the face of global climate change, it is turning to the building sector for viable solutions. The effects of energy use in residential and commercial buildings are nationwide, worldwide and varied. In the U.S. alone, residential and commercial buildings account for 40% of all energy consumption and 70% of electricity usage.

Document type: Analysis
Publication Date: April 2013
Page Focus: Code Development

The 2009 and 2012 International Energy Conservation Codes (IECC) require a substantial improvement in energy efficiency compared to the 2006 IECC. This report averages the energy use savings for a typical new residential dwelling unit based on the 2009 and 2012 IECC compared to the 2006 IECC. Results are reported by the eight climate zones in the IECC and for the national average.

Document type: Resource Guide
Publication Date: September 2011
Page Focus: Adoption, Code Development, Green and Advanced Codes

The Going Beyond Code Guide is designed to help state and local governments design and implement successful "beyond code" programs for new commercial and residential buildings. The goal is to help states and localities establish voluntary or mandatory programs that go well beyond traditional minimum code requirements for new buildings.

Document type: Reports and Studies
Publication Date: May 2014
Page Focus: Adoption, Code Development, Compliance, Residential

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.

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Alabama, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Alaska, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Arizona, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Arkansas, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of California, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Colorado, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: April 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

Complete IECC Prototype Building Model packages include files for every state by IECC version.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Note: each of these files are over 100 MB in size; download times may vary.

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Connecticut, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Delaware, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the District of Columbia, using a customized version of the 2009 IECC as the baseline code with improved wall and ceiling insulation levels.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Florida, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Georgia, using a customized version of the 2009 IECC as the baseline code with better windows.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Hawaii, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Idaho, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Illinois, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Indiana, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Iowa, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2011
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Kansas, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Kentucky, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Louisiana, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Maine, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Maryland, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Massachusetts, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Michigan, using a customized version of the 2009 IECC as the baseline code without duct testing requirements.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Minnesota, using a customozed version of the 2006 IECC as the baseline code with lower wall and ceiling insulation levels.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Mississippi, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Missouri, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Montana, using a customized version of the 2009 IECC as the baseline code with R-21 walls and U-0.33 windows.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Nebraska, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Nevada, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of New Hampshire, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of New Jersey, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of New Mexico, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of New York, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of North Carolina, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of North Dakota, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Ohio, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date:
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Oklahoma, using a customized version of the 2009 IECC as the baseline code with improved windows in climate zone 3.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Oregon, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Pennsylvania, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Rhode Island, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of South Carolina, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of South Dakota, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Tennessee, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2011
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Texas, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Utah, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Vermont, using a customized version of the 2009 IECC as the baseline code with better slab insulation and windows and tighter duct sealing.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Virginia, using a customized version of the 2009 IECC as the baseline code without duct testing requirements.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Washington, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of West Virginia, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Wisconsin, using a customized version of the 2006 IECC as the baseline code with improved wall insulation and windows.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Model Data
Publication Date: May 2012
Page Focus: Code Development

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 2006, 2009 and 2012 versions of the IECC are available for each state.

This set of IECC Prototype Building Models is for the state of Wyoming, using the 2006 IECC as the baseline code.

Each ZIP file includes EnergyPlus model input files (.idf) and corresponding output files (.html).

Document type: Reports and Studies
Publication Date: April 2012
Page Focus: Code Development

The U.S. Department of Energy's (DOE's) Building Energy Codes Program has developed and established a methodology for evaluating the energy and economic performance of residential energy codes. This methodology serves two primary purposes. First, as DOE participates in the consensus processes of the International Code Council, the methodology described herein will be used by DOE to ensure that its proposals are both energy efficient and cost effective. Second, when a new version of the International Energy Conservation Code is published, DOE will evaluate the new code as a whole to establish expected energy savings and cost effectiveness, which will help states and local jurisdictions interested in adopting the new codes. DOE's measure of cost-effectiveness balances longer-term energy savings against additions to initial costs through a life-cycle cost perspective.

2015 Revision to this document was posted August 12, 2015. This document is an update to the U...

Document type: Analysis
Publication Date: June 2015
Page Focus: Code Development

This analysis focuses on one- and two-family dwellings, townhomes, and low-rise multifamily residential buildings based on the International Energy Conservation Code (IECC). PNNL evaluated the cost-effectiveness of the changes in the prescriptive and mandatory residential provisions of the 2015 edition of the IECC, hereafter referred to as the 2015 IECC, compared to those in the 2012 and 2009 IECC. The current analysis builds on the PNNL technical report titled 2015 IECC: Energy Savings Analysis (Mendon et al. 2015) which identified the prescriptive and mandatory changes introduced by the 2015 IECC compared to the 2012 IECC and determined their energy savings impact.

Document type: Reports and Studies
Publication Date:
Page Focus: Code Development

More than 200,000 homes are factory built in the United States each year to the federally preemptive Manufactured Housing Construction and Safety Standards, mandated by the U.S. Department of Housing and Urban Development (HUD). This paper analyzes national energy use and savings potential from improvements to thermal distribution system efficiency, thermal envelopes, and heating, ventilation and air conditioning (HVAC) equipment over what is currently required by HUD code. Estimated energy savings over current HUD code are provided for four cases: National Fire Protection Association Standard 501-2005, the 2006 International Energy Conservation Code, the U.S. Environmental Protection Agency’s ENERGY STAR manufactured housing guidelines , and Best Practice, based on the U.S. Department of Energy’s Building America Industrialized Housing Partnership program home built in the Pacific Northwest. Savings estimates are also provided from improved HVAC system efficiencies, such as using...

Document type: Analysis, Determination
Publication Date: April 2019
Page Focus: Code Development

This report provides preliminary estimates of the incremental costs and savings associated with the residential provisions of the 2018 International Energy Conservation Code (IECC). The analysis is provided to the U.S. Department of Energy (DOE) to help quantify the costs and savings impacts of the latest published edition of the IECC, the 2018 IECC. The resulting information aids in understanding the net costs and economic impacts associated with updated energy codes, which is typically of interest to adopting states and localities.

Document type: Analysis, Determination, Technical Support Document
Publication Date: August 2018
Page Focus: Code Development

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.

Document type: Reports and Studies
Publication Date: June 2004
Page Focus: Code Development

Energy-efficiency requirements were developed for manufactured homes, which are regulated by the U.S. Department of Housing and Urban Development (HUD). A life-cycle cost analysis from the homeowner's perspective was used to establish parameters for a least-cost home in a large number of cities. Economic, financial, and energy-efficiency measures for the life-cycle cost analysis were selected and documented. The resulting energy-efficiency levels were aggregated to zones that were expressed as a maximum overall home U-value (U0) requirement for the building envelope. The proposed revised standard's costs, benefits, and net value to the consumer were quantified.  This analysis updates a similar effort completed in 1992, which was the basis for the existing HUD code U0 requirement.  Updated U0s for manufactured homes are recommended.

Document type: Analysis, Reports and Studies
Publication Date: April 2012
Page Focus: Code Development

Pacific Northwest National Laboratory (PNNL) conducted a series of cost effectiveness analyses for the U.S. Department of Energy (DOE), covering the 2009 and 2012 editions of the International Energy Conservation Code (IECC) for new single and multifamily homes. The evaluations were performed against a 2006 IECC baseline, taking state-specific code amendments into consideration. These reports outline the results of these analyses, including a National Cost Analysis and Cost Analyses for selected states.

Document type: Analysis
Publication Date: February 2015
Page Focus: Code Development

These analyses evaluate the cost-effectiveness of the prescriptive path of the 2015 edition of the International Energy Conservation Code (IECC), relative to the 2006 IECC for all 50 states and the District of Columbia. The analysis covers one- and two-family dwelling units, town-homes, and low-rise multifamily residential buildings covered by the residential provisions of the 2015 IECC. These reports were originally published in October 2015, and updated in February 2016 to update numbers reported in certain results tables.