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7.A. - Page 230 of 285 2019 Nonresidential New Construction Reach Code Cost Effectiveness Study <br />5 Summary, Conclusions, and Further Considerations <br />The Reach Codes Team developed packages of energy efficiency measures as well as packages combining <br />energy efficiency with PV generation and battery storage systems, simulated them in building modeling <br />software, and gathered costs to determine the cost effectiveness of multiple scenarios. The Reach Codes <br />team coordinated assumptions with multiple utilities, cities, and building community experts to develop a <br />set of assumptions considered reasonable in the current market. Changing assumptions, such as the <br />period of analysis, measure selection, cost assumptions, energy escalation rates, or utility tariffs are likely <br />to change results. <br />5.1 Summary <br />Figure 41 through Figure 43 summarize results for each prototype and depict the compliance margins <br />achieved for each climate zone and package. Because local reach codes must both exceed the Energy <br />Commission performance budget (i.e., have a positive compliance margin) and be cost-effective, the <br />Reach Code Team highlighted cells meeting these two requirements to help clarify the upper boundary <br />for potential reach code policies: <br />♦ Cells highlighted in green depict a positive compliance margin and cost-effective results using <br />both On -Bill and TDV approaches. <br />♦ Cells highlighted in yellow depict a positive compliance and cost-effective results using either the <br />On -Bill or TDV approach. <br />♦ Cells not highlighted either depict a negative compliance margin or a package that was not cost <br />effective using either the On -Bill or TDV approach. <br />For more detail on the results in the Figures, please refer to Section 4 Results. As described in Section 4.4, <br />PV -only and PV+Battery packages in the mixed -fuel building were found to be cost effective across all <br />prototypes, climate zones, and packages using the TDV approach, and results are not reiterated in the <br />following figures. <br />55 <br />2019-07-25 <br />482 <br />