The misuse of net present value in energy efficiency standards

Syed Basher and David G. Raboy

Renewable and Sustainable Energy Reviews, 2018, vol. 96, issue C, 218-225

Abstract: Consumers are often blamed for not making necessary investments in energy-efficient durables despite that these investments have positive net present value (NPV). Several papers have argued that when investments have option-like characteristics (e.g., irreversibility, uncertainty, flexible timing, and lumpiness), the aphorism “invest if the net present value of investing exceeds zero” isn’t the best advice. Yet, curiously, the Department of Energy (DOE) in the United States proposes new regulations mandating higher energy efficiency standards for consumer durables on the basis of non-negative NPV over an investment's lifetime. In this paper, we provide a step-by-step deconstruction of DOE's NPV methodology and show that DOE's method purges volatility, volatility persistence, and nonstationarity that are otherwise present in energy prices. As a result, DOE's projections of future energy prices are artificially smooth and statistically biased, casting serious doubt on the reliability of the magnitude of energy savings from energy-efficient durables.

Keywords: C22; Q40; Q41; Q47; Net present value; Energy efficiency; Nonstationarity; Volatility; Electricity and gas prices (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:rensus:v:96:y:2018:i:c:p:218-225

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DOI: 10.1016/j.rser.2018.07.047

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