Publications

This report explains the methodology used to develop version 4.6.5 of the REScheck software in order to support compliance determination for IECC editions 2009, 2012, 2015, and 2018.

The Submittal Reviewer is a professional responsible for reviewing the compliance documentation on behalf of the authority having jurisdiction or rating authority for projects following ASHRAE Standard 90.1 Section 11 and Appendix G. This document outlines the Submittal Reviewer responsibilities.

The Energy Modeler is a professional responsible for performing energy modeling and facilitating completion of the DOE/PNNL ASHRAE Standard 90.1 Performance Based Compliance Form on projects following ASHRAE Standard 90.1 Section 11 and Appendix G. This document outlines the Energy Modeler responsibilities.

Presentation Slides from the April 27, 2022 Resilient and Efficient Codes Implementation (RECI) RFI Public Workshop.

This report considers the role of commercial building energy codes in enabling grid-interactive efficient buildings (GEBs). Specifically, it highlights the status of demand flexibility (DF) measures in ASHRAE Standard 90.1. It examines the model code-development process and identifies components preventing the consideration and inclusion of DF measures, including code scope, characterization and analysis of proposed new prescriptive measures, and the time-of-day and geographic differences in their benefits.

This project was initiated because of the state of Florida desire to review provisions of its proposed 7th Edition (2020) Florida Energy Code (FEC) for commercial buildings in order to make a determination if it meets or performs better than ASHRAE 90.1-2016 code. For this purpose the proposed code modifications were reviewed and quantitatively analyzed.

Qualitative analysis performed in support of the Standard 90.1-1999 Determination.

To meet the statutory requirement, DOE conducted an analysis to quantify the expected energy savings associated with Standard 90.1-2019. This report documents the methodology used to conduct the analysis. Based on the analysis, DOE has preliminarily determined that the 2019 edition of the ANSI/ASHRAE/IES Standard 90.1 would improve overall energy efficiency in buildings subject to the code (compared to the 2016 edition of Standard 90.1).

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.

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.

The data (in this file or on this page) represents the data collected as DOE’s Residential Field Study[1] as of June 2016.  Data is provided Microsoft Excel for 8 states – AL, KY, MD, NC, PA, TX, AR and GA.  Additional states using DOE’s field study methodology, may be added in the future as data collection and analysis is completed.  

This data file was reformatted and revised May 28, 2019, and again July 17, 2019.

The purpose of this report is to document findings and final results from the Pennsylvania field study, including a summary of key trends observed in the field, their impact on energy efficiency, and whether the selected education and training activities resulted in a measurable change in statewide energy use.

A research project in the Commonwealth of Pennsylvania identified opportunities to reduce homeowner utility bills in residential single-family new construction by increasing compliance with the state energy code. The study was initiated in October 2014 and continued through July 2015. During this period, research teams visited 171 homes during various stages of construction, resulting in a substantial data set based on observations made directly in the field.

This letter hereby to certifies that the State of Oregon has adopted the 2023 Oregon Residential Specialty Code (ORSC with energy efficiency provisions exceeding those of the 2021 International Energy Conservation Code ( I C C ) for low-rise residential buildings. 

A research project in the state of Oregon identified opportunities to reduce homeowner utility bills in residential single-family new construction by increasing compliance with the state energy code. The study was initiated in November 2019; data collection began in November 2019 and continued through February 2020. Analysis of the data has led to a better understanding of the energy features present in homes and identified over $600,000 in potential annual savings to Oregon homeowners that could result from increased compliance with the 2017 Oregon Residential Specialty Code (2017 ORSC).