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7.A. - Page 208 of 285 2019 Nonresidential New Construction Reach Code Cost Effectiveness Study 4.2 Cost Effectiveness Results -Medium Retail Figure 24 through Figure 30 contain the cost-effectiveness findings for the Medium Retail packages. Notable findings for each package include: ♦ 1A — Mixed -Fuel + EE: ♦ Packages achieve +9/ to +18% compliance margins depending on climate zone, and all packages are cost effective in all climate zones. ♦ Incremental package costs vary across climate zones because of the HVAC system size in some climate zones are small enough (<54 kBtu/h) to have the economizers measure applied. ♦ B/C ratios are high compared to other prototypes because the measures applied are primarily low-cost lighting measures. This suggests room for the inclusion of other energy efficiency measures with lower cost-effectiveness to achieve even higher compliance margins for a cost effective package. ♦ 1B — Mixed -Fuel + EE + PV + B: All packages are cost effective using both the On -Bill and TDV approach, except On -Bill in LADWP territory. Adding PV and battery to the efficiency packages reduces the B/C ratio but increases overall NPV savings. 1C — Mixed -fuel + HE: Packages achieve +1 to +4% compliance margins depending on climate zone, and packages are cost effective in all climate zones except CZs 1, 3 and 5 using the TDV approach. ♦ 2 — All -Electric Federal Code -Minimum Reference: ♦ Packages achieve between -12% and +1% compliance margins depending on climate zone. ♦ Packages achieve positive savings using both the On -Bill and TDV approaches in CZs 6-10 and 14-15. Packages do not achieve On -Bill or TDV savings in most of PG&E territory (CZs 1, 2, 4, 5, 12-13, and 16). ♦ Packages are cost effective in all climate zones except CZ16. ♦ All incremental costs are negative primarily due to elimination of natural gas infrastructure. 3A — All -Electric + EE: Packages achieve between +3% and +16% compliance margins depending on climate zone. All packages are cost effective in all climate zones. ♦ 3B — All -Electric + EE + PV + B: All packages are cost effective using both the On -Bill and TDV approaches, except On -Bill in LADWP territory. Adding PV and Battery to the efficiency package reduces the B/C ratio but increases overall NPV savings. ♦ 3C — All -Electric + HE: Packages achieve between -8% and +5% compliance margins depending on climate zone, and packages are cost effective using both On -Bill and TDV approaches in all CZs except CZs 1 and 16. 33 RE 2019-07-25 �.1