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Standard Practice for Measuring Internal Rate of Return and Adjusted Internal Rate of Return for Investments in Buildings and Building Systems
Automatische name übersetzung:
Standard Praxis für Mess Internal Rate of Return und bereinigt Interner Zinsfuß für Investitionen in Gebäude und Gebäudetechnik
NORM herausgegeben am 1.10.2010
Bezeichnung normen: ASTM E1057-06(2010)
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.10.2010
SKU: NS-40289
Zahl der Seiten: 8
Gewicht ca.: 24 g (0.05 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
adjusted internal rate of return, building economics, discounting, economic evaluation methods, engineering economics, internal rate of return, net benefits, net savings, overall rate of return, payback, savings-to-investment ratio, terminal value, Adjusted internal rate of return, Building economics, Discount rate, Engineering economics, Internal rate of return, Net benefits analysis (of buildings), Overall rate of return, Payback, Terminal value, ICS Number Code 91.010.20 (Contractual aspects)
Significance and Use | ||||||||||||||||||||||||
The IRR method has been used traditionally in finance and economics to measure the percentage yield on investment. The IRR method is appropriate in most cases for evaluating whether a given building or building system will be economically efficient, that is, whether its time-adjusted benefits will exceed its time-adjusted costs over the period of concern to the decision maker. However, it has deficiencies that limit its usefulness in choosing among projects competing for a limited budget. The AIRR method is a measure of the overall rate of return that an investor can expect from an investment over a designated study period. It is appropriate both for evaluating whether a given building or building system will be economically efficient and for choosing among alternatives competing for a limited budget. The AIRR method overcomes some, but not all, of the deficiencies of the IRR. The AIRR is particularly recommended over the IRR for allocating limited funding among competing projects. |
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1. Scope | ||||||||||||||||||||||||
1.1 This practice covers a procedure for calculating and interpreting the internal rate of return (IRR) and adjusted internal rate of return (AIRR) measures in the evaluation of building designs, systems, and equipment. |
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2. Referenced Documents | ||||||||||||||||||||||||
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