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Value Beyond Cost Savings - Green Building Finance Consortium

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Appendix FSustainable Property Financial Analysis AlternativesAnalysis/Model Description/Commentary Key Links/ExamplesICC or cost savings.As generally applied, if the NPV metric is greater than zero,the decision is accepted.4. Discounted CashFlow Analysis –Internal Rate ofReturnAs is the case with most underwriting analysis, the NPV andIRR metrics are two sides of the same coin. If the NPV isgreater than zero, then the IRR exceeds the discount ratehurdle. If the IRR exceeds the discount rate hurdle, the NPV isgreater than zero.The IRR calculation is based on the same cash flowprojections as the NPV analysis and determines the IRR thatequates to an NPV of zero.IRR = f (S1…S10, ICC)WhereIRR = Internal Rate of Return (percent)S1…S10 = present and future Net AnnualEnergy <strong>Savings</strong> (dollars)ICC = Initial Capital <strong>Cost</strong>s (dollars)This approach takes into consideration both the time value ofmoney and changes in future energy prices. It can be appliedsolely to the annual energy savings over the expected usefullife of the investment, or it can also include the anticipatedchange in property value and net sales proceeds at the end ofthe holding period.When analyzing investments with limited durations, this metricwill have similar applicability as the NPV metric and is a robustmeasure, applicable to higher-ICC investments or where thereare data uncertainties surrounding ICC or cost savings.When the IRR metric is applied to investments with ongoing,permanent benefits, it becomes a robust measure of the meritsof the investment, including changes in property valuation. It232

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