Publications

This workbook accompanies the report 'National Cost-effectiveness of ANSI-ASHRAE-IES Standard 90.1-2010' The report provides the full description of this project and the cost estimate methodology as well as some additional details on the cost estimate items.

This workbook accompanies the report 'National Cost-effectiveness of ANSI-ASHRAE-IES Standard 90.1-2013' The report provides the full description of this project and the cost estimate methodology as well as some additional details on the cost estimate items.

This workbook accompanies the report 'National Cost-Effectiveness of ANSI/ASHRAE/IES Standard 90.1-2016.' The report provides the full description of this project and the cost estimate methodology as well as some additional details on the cost estimate items.

These analyses evaluate the cost-effectiveness of the prescriptive path of the 2018 edition of the International Energy Conservation Code (IECC), relative to the 2015 IECC with amendments for all 50 states and the District of Columbia. The analysis covers one- and two-family dwelling units, townhouses, and low-rise multifamily residential buildings covered by the residential provisions of the 2018 IECC.

This report is focused on the analysis of collected data in support of the development of an updated methodology to measure the impact of energy codes on commercial buildings and identify opportunities for savings through increased compliance. The primary goal was to analyze the data collected during the field study and determine the actual energy cost impact of each measure in a non-compliance situation. The energy impact results allowed for ranking the measures to identify which have the highest potential for lost savings.

This document attempts to answer the following questions: What is the potential value of increasing compliance with the energy code and which code requirements should be emphasized during these studies? Ultimately, these are the questions that policy makers, funders, and program implementers care about. To answer them, a far more sophisticated approach is needed, one that addresses not only the question of value, but also the resource requirements to determine that value.

This document updates commercial building construction weights for the purpose of estimating national and state-by-state energy savings impacts of changes made to various commercial energy codes and standards using dis-aggregate construction volume data for the years 2003‐2007.

This document updates commercial building construction weights for the purpose of estimating national and state-by-state energy savings impacts of changes made to various commercial energy codes and standards. A similar activity was last completed by PNNL in 2010 using disaggregate construction volume data for the years 2003‐2007. For the current update, PNNL reviewed the same data source with the latest construction data for the years 2003‐2018.

The U.S. Department of Energy (DOE) tasked Pacific Northwest National Laboratory (PNNL) with updating commercial building1 construction weights for the purpose of estimating national and state-by-state energy savings impacts of changes made to various commercial energy codes and standards. For commercial building analyses, PNNL typically uses a suite of 16 prototype buildings simulated in the 19 ASHRAE climate zones with 16 of them present in the United States. The 2008-2022 commercial building weighting factors were derived using the same approach employed to develop the 2003-2018 set (Lei et al, 2020).

Data Collection Forms used to support the Commercial Energy Code Field Study.

Data Collection Supplemental Worksheets used to support the Commercial Energy Code Field Study.

2019 National Energy Codes Conference Technical program.

This spreadsheet contains detailed end-use data results from the Determination Analysis of IECC-Residential 2024 conducted by Pacific Northwest National Laboratory.

This report summarizes technical analysis conducted by Pacific Northwest National Laboratory (PNNL), assessing expected end-use energy consumption in commercial buildings, based on recent editions of the model energy code for the commercial sector, ANSI/ASHRAE/IES Standard 90.1, Energy Standard for Buildings Except Low-Rise Residential Buildings. An accompanying spreadsheet is available containing detailed end use data results from the Progress Indicator analysis.

This report summarizes technical analysis conducted by Pacific Northwest National Laboratory (PNNL), assessing expected end-use energy consumption in commercial buildings, based on recent editions of the model energy code for the commercial sector, ANSI/ASHRAE/IES Standard 90.1, Energy Standard for Buildings Except Low-Rise Residential Buildings. 

This spreadsheet contains detailed end use data results from the Progress Indicator analysis of ASHRAE Standard 90.1-2013 conducted by PNNL.

This spreadsheet contains detailed end use data results from the Progress Indicator analysis of ASHRAE Standard 90.1-2016 conducted by PNNL.

This report provides an assessment as to whether new buildings constructed to the commercial energy efficiency provisions of the 2015 IECC would save energy and energy costs as compared to the 2012 IECC. PNNL also compared the energy performance of the 2015 IECC with the corresponding Standard 90.1-2013. The purpose of this analysis is to help states and local jurisdictions make informed decisions regarding model code adoption.