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State Energy Code Analysis Fact Sheet - Massachusetts
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Maryland
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Maine
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Louisiana
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Kentucky
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Kansas
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Iowa
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Indiana
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Illinois
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Idaho
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Hawaii
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Georgia
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Florida
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Delaware
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Connecticut
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Arkansas
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Colorado
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Arizona
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
State Energy Code Analysis Fact Sheet - Alaska
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019 by State.
Impacts of Model Building Energy Codes – Interim Update
DOE has conducted an interim and limited update to its 2016 study to evaluate potential building code updates using the 2016 methodology and data. This interim update includes estimated savings resulting from more recent updates to the model energy codes, including the Standard 90.1-2016 and 2019 editions, as well as the 2018 and 2021 International Energy Conservation Code (IECC).
State Energy Code Analysis Fact Sheet - Alabama
Expected savings overview of new homes built to the 2021 IECC and new commercial buildings built to ASHRAE Standard 90.1-2019.
Preliminary Energy Savings Analysis: 2021 IECC for Residential Buildings
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.