PNNL

Abstract

The state of Washington is updating their current state residential energy code. They will be moving from the 2018 Washington State Energy Code (2018 WSEC-R) to the 2021 WSEC-R. The Washington State Building Code Council (SBCC) requested that Pacific Northwest National Laboratory (PNNL) perform an independent analysis of the energy and economic impacts of the proposed code changes to the 2018 WSEC-R. SBCC requested that PNNL determine the energy, economic, and emissions impact of the 2021 WSEC-R. The objective was to review submitted data in the proposals, supplement and revise the economic impact analyses included in those proposals as needed, and review life-cycle cost analyses per state protocols or using alternative methods if necessary to provide improved and more accurate analysis.