Virginia Residential Energy Code Field Study Report Released!

The U.S. Department of Energy (DOE) Building Energy Codes Program is conducting a series of research studies investigating building energy code implementation to assist states in measuring energy code compliance and to identify areas of focus for future education & training initiatives.

Southeast Energy Efficiency Alliance (SEEA) led the initiative in Virginia and provided funding for Viridiant to perform a field study in 2017-2018 to assess how well the residential energy code was being implemented across Virginia in new construction single family buildings. Following Viridiant’s data collection and analysis by the Pacific Northwest National Laboratory (PNNL), the Baseline Report was released in October 2019. Key findings include:

  • Significant energy and cost savings potential exist through increased compliance with targeted measures. Potential statewide annual energy savings are 150,752 MMBtu, which equates to nearly $3 million in cost savings, and emission reductions of nearly 75,000 MT CO2e. Over a 30-year period, these impacts grow to 70 MMBtu, $1.3 billion, and over 34 million CO2e in avoided emissions.
  • Duct leakage and envelope air leakage measures showed the greatest potential for energy savings.
  • To achieve potential energy savings focus should be applied to energy code compliance-improvement programs including educational, training, and outreach initiatives.

Based on the results of the study, SEEA provided funding for Viridiant to lead energy code trainings across Virginia. These trainings are intended to provide code officials, builders, architects, and subcontractors with a better understanding of compliance with the targeted energy code measures and how to meet 2015 energy code changes.

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