DOE Zero Energy Ready Home Program Version 2: Stakeholder Feedback

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The U.S. Department of Energy (DOE) is committed to advancing high performance, high quality homes through its DOE Zero Energy Ready Homes (ZERH) certification program. To keep pace with increasingly stringent energy codes, advanced building technologies, and to continue to boost the efficiency and reduce the GHG emissions from new U.S. homes, DOE released the Zero Energy Ready Home National Program Requirements for Single Family Homes: Version 2 for stakeholder feedback.  

ZERH Version 2 draft requirements were developed in coordination with updates to the EPA ENERGY STAR Residential New Construction and Indoor airPLUS programs.  ZERH V2 will require and build upon ENERGY STAR’s most stringent version (V3.2), released for stakeholder comment October 18, 2021.  Additional enhancements in ZERH V2 include boosting minimum insulation levels to align with 2021 International Energy Conservation Code (IECC), including thermal breaks in above-grade walls in mixed and cold climates, achieving a more stringent efficiency threshold (ERI targets in the 40s), expanding the use of PV-Ready features, and integrating properly designed MERV 13 filtration, consistent with U.S. Centers for Disease Control and Prevention (CDC) and ASHRAE guidance.  

Documents for Public Comment

Public Comment Period (Now Closed)

The public comment period for Version 2 of the Zero Energy Ready Home specifications has concluded. The DOE Zero Energy Ready Home team values the feedback from our partners and other program stakeholders and will consider all feedback received during the comment period.  DOE is now reviewing all submitted feedback, formulating responses, and making any necessary adjustments. 

ZERH V2 Webinar

A recorded webinar, focusing on the changes in requirements from V1 to V2 and important program updates is now available to view. 

Click here to view the webinar.


Following public comment, DOE will make revisions as appropriate based on feedback. Should there be significant updates made as a result of this initial public comment period, DOE may conduct a second comment cycle.  It is anticipated that Zero Energy Ready Home Version 2 will be available in mid-2022. DOE will provide a transition period for V1 to V2 of at least 9 months, during which V2 may be used on an optional basis.