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Energy Efficiency

, Volume 11, Issue 6, pp 1325–1340 | Cite as

Estimating an economic-efficient frontier for dishwasher consumer choice

  • Helcio Blum
  • Edson Okwelum
Original Article
  • 142 Downloads

Abstract

Dishwashers are a ubiquitous appliance in households in the USA. They combine capital, energy, and water to provide a relevant household service, namely dishwashing. The economic efficiency of dishwashers has been previously assessed using data envelopment analysis (DEA). The approach addresses the technical efficiency of dishwashers based on possible trade-offs between capital and energy. It further draws from the technical efficiency scores an efficient frontier for dishwashing based on these two input factors. We argue that water could also be a relevant input factor to that frontier, especially from the perspective of consumer choice. We develop a DEA model that includes water as an additional input and test if adding water to the analysis contributes to the efficiency frontier. We find that water does have some effect on the frontier, as the DEA model that includes water as an input factor leads to a richer set of efficient possibilities for dishwashing, where energy and water are traded off. We rely on our method and findings to propose two approaches to inform dishwasher consumer choice. One is extending an energy label to include dishwasher water consumption, as a means to inform consumers on their possible trade-offs between energy and water consumption at different levels of appliance price and quality. The other one is disclosing the DEA efficiency scores we estimate as an indicator of the overall economic efficiency of each dishwasher model.

Keywords

Data envelopment analysis Efficiency frontier Consumer-choice Energy durables Dishwashers 

Notes

Acknowledgements

This work was supported by the Office of Energy Efficiency and Renewable Energy (Solar Technologies Office) of the US Department of Energy under Lawrence Berkeley National Laboratory Contract No. DE-AC02-05CH1131. We acknowledge Prof. Luiz F. L. Legey, COPPE/PPE, Universidade Federal do Rio de Janeiro, Brazil, and six anonymous reviewers for their valuable comments on a draft version of this paper.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no competing interests.

Supplementary material

12053_2018_9627_MOESM1_ESM.csv (9 kb)
ESM 1 (CSV 9 kb)

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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Energy Efficiency Standards Group, Energy Analysis and Environmental Impacts Division, Energy Technologies AreaLawrence Berkeley National LaboratoryBerkeleyUSA

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