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Page 12 <br />Executive Sum m ary <br />The City of Louisville (the City) contracted with Group14 Engineering, PBC (Group14) and Lotus <br />Engineering and Sustainability, LLC (Lotus) to explore updates to the City's current <br />commercial energy code that would help the City reach their energy efficiency and <br />greenhouse gas reduction goals. The City and consultant team examined commercial <br />energy code policy options including higher efficiency requirements, all electric <br />requirements, and net zero requirements. The scope of work included: <br />• Energy m odeling of current code compliant heating, ventilation, and air conditioning <br />systems in commercial and industrial building types to evaluate upfront cost, <br />operational cost, and greenhouse gas (GHG) emissions. The energy modeling also <br />included an analysis on the total solar PV required to make code compliant buildings <br />(both m ixed-fuel and all- electric) net zero. Finally, energy modeling was conducted to <br />analyze the upfront cost, operational cost, and GHG emissions savings of buildings <br />built to a higher efficiency performance standard. <br />• Research on existing commercial energy code policies from around the country. <br />• A public engagement process that solicited feedback on commercial code policy <br />options via two City board meetings, two open- house style com m unity meetings, and <br />an online public engagement survey. <br />Three main policy options resulted from the project process: <br />• Regional Code Cohort Alignment: Aligning with a regional cohort of communities in <br />and around Boulder County striving for consistent building code updates. <br />Communities are adopting the 2021International Energy Conservation Code (IECC) as <br />the base code along with several supporting amendments to promote electrification <br />and efficiency. Even though Louisville has already adopted the 20211ECC, some of the <br />anticipated cohort amendments would strengthen the Louisville code. <br />• Policy Option 1: Setting a minimum energy performance standard (through Energy <br />Use Intensity (EUI) modeling attime of building permit) forcommercial buildings.The <br />energy performance standard would vary based on building type. A building owner <br />could utilize onsite renewable energy to help reach the energy performance standard. <br />This policy could include incentives for all building electrification. <br />Group L 0 T L city,}f <br />ENGINEERING E+►�MWngd&S S IMbllny Louisville <br />8 <br />