Publication detail

Does Daylight Saving Time Save Electricity? Evidence from Slovakia

Author(s): prof. PhDr. Tomáš Havránek Ph.D., Peter Kudela
doc. PhDr. Zuzana Havránková Ph.D., Peter Kudela
Mgr. Dominik Herman , Peter Kudela
Type: IES Working Papers
Year: 2019
Number: 4
Published in: IES Working Papers 4/2019
Publishing place: Prague
Keywords: Daylight saving time, electricity consumption, peak demand, Slovakia
JEL codes: C54, Q41, Q48
Suggested Citation: Kudela P., Havranek T., Herman D. and Irsova Z. (2019): “Does Daylight Saving Time Save Electricity? Evidence from Slovakia” IES Working Papers 4/2019. IES FSV. Charles University.
Abstract: The European Union has recently decided to stop the policy of biannual clock changes in 2021. One reason is that the original rationale for the policy, energy savings, is not supported by a large portion of recent empirical studies. Whether the new permanent time will be standard time or the former daylight saving time has not been decided. Evidence on energy savings from daylight saving time is country-specific, and each country may choose its own time. We examine the effects of the policy in a country for which no studies on daylight saving exist, Slovakia. Using hourly data from the 2010-2017 period, we apply a difference-in-differences approach and estimate energy savings to equal 0.8% of annual electricity consumption. Alternatively, extrapolating the effect from the results of a previous meta-analysis (on different countries), for Slovakia we obtain an even smaller estimate, unlikely to exceed 0.5%. Moreover, our findings suggest that daylight saving time smooths the electricity demand curve.
Downloadable: wp_2019_04_kudela_havranek_herman_irsova


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