National Energy Codes Collaborative

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Split Systems: Coordinating Energy Policies for New and Existing Buildings

May 7, 2025|

ACEEE and the National Energy Codes Collaborative examine conflicts and alignments between building codes and Building Performance Standards in Atlanta, St. Louis, and Seattle. The authors derive lessons for other cities to ensure policies to decarbonize new and existing buildings are measuring against similar performance metrics and minimizing unnecessary bureaucratic hurdles.