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Does Daylight Saving Save Electricity? A Meta-Analysis

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  • Tomas Havranek, Dominik Herman, and Zuzana Irsova

Abstract

The original rationale for adopting daylight saving time (DST) was energy savings. Modern research studies, however, question the magnitude and even direction of the effect of DST on electricity consumption. Representing the first meta-analysis in this literature, we collect 162 estimates from 44 studies and find that the mean reported estimate indicates slight electricity savings: 0.34% during the days when DST applies. The literature is not affected by publication bias, but the results vary systematically depending on the exact data and methodology applied. Using Bayesian model averaging we identify the most important factors driving the heterogeneity of the reported effects: data frequency, estimation technique (simulation vs. regression), and, importantly, the latitude of the country considered. Electricity savings are larger for countries farther away from the equator, while subtropical regions consume more electricity because of DST.

Suggested Citation

  • Tomas Havranek, Dominik Herman, and Zuzana Irsova, 2018. "Does Daylight Saving Save Electricity? A Meta-Analysis," The Energy Journal, International Association for Energy Economics, vol. 0(Number 2).
  • Handle: RePEc:aen:journl:ej39-2-irsova
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    Cited by:

    1. Anton Astakhov & Tomas Havranek & Jiri Novak, 2019. "Firm Size And Stock Returns: A Quantitative Survey," Journal of Economic Surveys, Wiley Blackwell, vol. 33(5), pages 1463-1492, December.
    2. Kudela, Peter & Havranek, Tomas & Herman, Dominik & Irsova, Zuzana, 2020. "Does daylight saving time save electricity? Evidence from Slovakia," Energy Policy, Elsevier, vol. 137(C).
    3. Qurat-ul-Ann, Abre-Rehmat & Mirza, Faisal Mehmood, 2020. "Meta-analysis of empirical evidence on energy poverty: The case of developing economies," Energy Policy, Elsevier, vol. 141(C).
    4. Flores, Daniel & Luna, Edgar M., 2019. "An econometric evaluation of daylight saving time in Mexico," Energy, Elsevier, vol. 187(C).
    5. Jean-Claude Berthélemy & Arnaud Millien, 2018. "Impact of Decentralized Electrification Projects on Sustainable Development: A Meta-Analysis," Université Paris1 Panthéon-Sorbonne (Post-Print and Working Papers) hal-01922517, HAL.
    6. Jean-Claude Berthélemy & Arnaud Millien, 2018. "Impact of Decentralized Electrification Projects on Sustainable Development: A Meta-Analysis," Post-Print halshs-01965653, HAL.
    7. Michal Franta & Tibor Hledik & Jan Vlcek & Michal Dvorak & Zlatuse Komarkova & Adam Kucera & Vaclav Broz & Michal Hlavacek, 2018. "Interest Rates," Occasional Publications - Edited Volumes, Czech National Bank, edition 2, volume 16, number rb16/2 edited by Jan Babecky & Volha Audzei, March.
    8. Fadoua Chiba & Sebastien Rouillon, 2018. "Intermittent electric generation technologies and smart meters: substitutes or complements," Cahiers du GREThA (2007-2019) 2018-11, Groupe de Recherche en Economie Théorique et Appliquée (GREThA).
    9. Petr Polák, 2019. "The Euro'S Trade Effect: A Meta‐Analysis," Journal of Economic Surveys, Wiley Blackwell, vol. 33(1), pages 101-124, February.
    10. Blake Shaffer, 2019. "Location matters: Daylight saving time and electricity demand," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 52(4), pages 1374-1400, November.
    11. Mojmir Hampl & Tomas Havranek, 2020. "Central Bank Equity as an Instrument of Monetary Policy," Comparative Economic Studies, Palgrave Macmillan;Association for Comparative Economic Studies, vol. 62(1), pages 49-68, March.
    12. Tomas Havranek & Anna Sokolova, 2020. "Do Consumers Really Follow a Rule of Thumb? Three Thousand Estimates from 144 Studies Say 'Probably Not'," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 35, pages 97-122, January.

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    • F0 - International Economics - - General

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