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7.A. - Page 197 of 285 2019 Nonresidential New Construction Reach Code Cost Effectiveness Study Figure 14. Natural Gas Infrastructure Cost Savings for All -Electric Prototypes Cost Type Medium Office Medium Retail Small Hotel Natural Gas Plan Review $2,316 $2,316 $2,316 Service Extension $13,000 $13,000 $13,000 Meter $3,000 $3,000 $3,000 Plumbing Distribution $633 $9,711 $37,704 Total Cost $18,949 $28,027 $56,020 3.4 Preempted High Efficiency Appliances The Reach Code Team developed a package of high efficiency (HE) space and water heating appliances based on commonly available products for both the mixed -fuel and all -electric scenarios. This package assesses the standalone contribution that high efficiency measures would make toward achieving high performance thresholds. The Reach Code Team reviewed the Air Conditioning, Heating, and Refrigeration Institute (AHRI) certified product database to estimate appropriate efficiencies.20 The Reach Code Team determined the efficiency increases to be appropriate based on equipment type, summarized in Figure 15, with cost premiums attained from a Bay Area mechanical contractor. The ranges in efficiency are indicative of varying federal standard requirements based on equipment size. Figure 15. High Efficiency Appliance Assumptions 3.5 Greenhouse Gas Emissions The analysis uses the greenhouse gas (GHG) emissions estimates from Zero Code reports available in CBECC-Com.21 Zero Code uses 8760 hourly multipliers accounting for time dependent energy use and carbon emissions based on source emissions, including renewable portfolio standard projections. Fugitive 20 Available at: https://www.ahridirectory.org/Search/SearchHome?ReturnUrl=%2f 21 More information available at: https://zero-code.org/wp-content/uploads/2018/11/ZERO-Code-TSD-California.pdf 22 2019-07-25 449 Cost Premium for Federal Minimum Efficiency Preempted Efficiency HE Appliance Gas space heating and 10-15% 80-82% 90-95% water heating Large packaged rooftop 9.8-12 EER 10.5-13 EER 10-15% cooling 11.4-12.9 IEER 15-15.5 IEER Single zone heat pump 7.7 HSPF 10 HSPF 6-15% space heating 3.2 COP 3.5 COP None (market does Heat pump water heating 2.0 UEF 3.3 UEF not carry 2.0 UEF) 3.5 Greenhouse Gas Emissions The analysis uses the greenhouse gas (GHG) emissions estimates from Zero Code reports available in CBECC-Com.21 Zero Code uses 8760 hourly multipliers accounting for time dependent energy use and carbon emissions based on source emissions, including renewable portfolio standard projections. Fugitive 20 Available at: https://www.ahridirectory.org/Search/SearchHome?ReturnUrl=%2f 21 More information available at: https://zero-code.org/wp-content/uploads/2018/11/ZERO-Code-TSD-California.pdf 22 2019-07-25 449