In an effort to provide high levels of continuing energy code support to Colorado’s 329 code jurisdictions, the Governor’s Energy Office commissioned an independent survey to better understand the types of code assistance desired. The survey was conducted by the International Codes Council between October and December 2008. The collected responses from 174 of Colorado’s code jurisdictions are presented in this report.
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Additional resources are also available from the Building America Solution Center.
The purpose of the Colorado Gap Analysis Report is twofold: 1) document and analyze the strengths and weaknesses of the state’s existing energy code adoption and implementation infrastructure and policies; and 2) recommend potential actions state agencies, local jurisdictions, and other stakeholders can take to achieve 100% compliance with the model energy codes.
The State of Colorado provides the following information to certify compliance with Title III of the Energy Conservation andProduction Act (ECPA) of 1976, as amended. As the U.S. Department of Energy (DOE) recognizes, the State of Colorado, as a long-term "home-rule" state has no statewide jurisdiction for the adoption and compliance with the International Energy Conservation Code (IECC) and ASHRAE 90.1-2007 at the local jurisdiction level. However, the State of Colorado, based on the demonstrated adoption and enforcement of the 2009 IECC and ASHRAE 90.1-2007 at the local jurisdiction level, fully meets the intent of the compliance requirements of the ECPA concerning energy codes.
In addition, the State of Colorado., within its jurisdictional authority, ahs adopted the 2012 IECC for low-rise residential buildings, as well as ASHRAE Standard 90.1-2010 for nonresidential buildings.
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).
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...
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.
A study prepared for E-Star Colorado, the Colorado Governor's Office of Energy Management and Conservation, and The Energy Foundation in order to analyze potential energy savings. The conclusion of the report recommends "adopting and enforcing up-to-date energy codes...and surpassing the energy performance specified by [these] codes."
A report conducted by the Southwest Energy Efficiency Project (SWEEP) that "reviews state and utility programs aimed at stimulating the construction of highly energy-efficient new homes in the states of Arizona, Colorado, Nevada, and Utah."
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.
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.