Publications

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Document type: State-specific
Publication Date: September 2015
Focus: Compliance

In accordance with the provisions of Section 304 of the Energy Conservation and Production Act (ECPA), as amended under 42 U.S.C 6833(b)(2)(B)(i) and 42 U.S.C 6833 (a)(l), each state must file certification statements to the U.S. Department of Energy (DOE) that it has reviewed the provisions of its building codes regarding energy efficiency and make a determination as to whether to update its code to meet or exceed the 2015 IECC, as well as ASHRAE 90.1-2013.

In 2010, the State of Hawaii adopted the 2006 IECC with amendments as the State Energy Conservation Code, referenced herein as the Hawaii Energy Code (HEC). The Hawaii State Energy Office has contracted with the Britt/Makela Group (BMG) team to provide analyses of proposed amendments to residential and commercial provisions of the 2015 IECC. The outcome of this analysis will be to facilitate adoption at the state and county level. In addition, the analysis provides a basis for the Hawaii State Energy Office to demonstrate...

Document type: State-specific
Publication Date:
Focus: Adoption

Title 39, Chapter 41, "Idaho Building Code Act" (§ 39-4101) of the Idaho Statutes and Administrative Rules authorizes the state division of building safety and local governments to adopt and enforce building codes pursuant to the provisions of this chapter.

Document type: Model Data
Publication Date: May 2012
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: State-specific, Technical Assistance report
Publication Date: September 2009
Focus: Adoption

This nationwide analysis of commercial energy code compares ASHRAE Standard 90.1-2007 with the commercial code in each state as of June 2009. The results are provided in chapters specific to each state.

States with unique energy codes were not included in the analysis because the codes in these states would be difficult to appropriately compare to ASHRAE Standard 90.1 and most of these states have energy offices that routinely assess their codes against the model codes. In states with codes prior to and including the 2000 IECC or Standard 90.1-1999, those states with no statewide energy code, and home rule states which did not specifically request that another code be used, Standard 90.1-1999 was used as the baseline for comparison.

Three DOE Benchmark buildings were used for the simulation used in this analysis: a medium office building (53,600 ft2), a mid-rise apartment building (33,700 ft2), and a non-refrigerated warehouse (49,500 ft2...

Document type: State-specific, Technical Assistance report
Publication Date: September 2009
Focus: Adoption

This analysis of residential energy code compares the requirements of the 2009 International Energy Conservation Code (IECC) with the residential code—or typical construction practice in the absence of a code—in most states as of June 2009. The results, which include estimated typical energy savings of updating each state’s code to the 2009 IECC, are provided in chapters specific to each state.

Several states have either not adopted a mandatory energy code or developed their own codes which have minimal or no connection to the IECC. The latter—including California, Florida, Oregon, and Washington— were not included in this analysis because the codes in these states would be difficult to appropriately compare to the 2009 IECC and most of these states have energy offices that have already assessed the IECC on their own.

Document type: Analysis
Publication Date: November 2015
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.