This document is to be used to guide the efforts associated with conducting evaluations of California’s energy efficiency programs and program portfolios launched after December 31, 2005, and includes the Codes and Standards Program Evaluation Protocol, which is designed to guide evaluation approaches for codes and standards programs.
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This document presents a consistent, systemized, cyclic approach for planning and conducting evaluations of California's energy efficiency and resource acquisition programs, and provides valuable information concerning when evaluations should be conducted, the types of evaluation that can be conducted, and a discussion of approaches for conducting those studies.
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).
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.
This study looked at seven building measures in both the residential and nonresidential sectors to learn how closely actual building practices adhere to newly adopted codes. Data were collected by reviewing permits and conducting verification site visits for a sample of building projects throughout the state. Key findings from this study include quantitative estimates of noncompliance rates for the seven measures, as well as qualitative information about some unexpected complexities associated with data collection efforts around building practices, both at building departments (during permit review) and at building sites (during inspection).
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.
The goal of the study was twofold: 1) to refine the original estimates made of noncompliance, initial market penetration, and naturally occurring market adoption rates by researching and analyzing the factors contributing to each parameter; and 2) to test the 2006 California Energy Efficiency Evaluation Protocols (Evaluation Protocols) as it applies to determining net savings resulting from Program activities.