Does Daylight Savings Time Save Energy? Evidence from Ontario
University of Ottawa - Graduate School of Public and International Affairs
December 13, 2016
Daylight Savings Time was adopted for the purposes of reducing energy consumption, but recent studies have cast some doubt on whether it still serves this purpose effectively. This study estimates the effect of Daylight Savings Time on electricity demand in Ontario, Canada. It uses a quasi-experimental approach, by leveraging the fact that the transition to DST occurs on a different day in each year. The results suggest that Daylight Savings Time reduces the demand for electricity by about 1.5 percent in Ontario. The reductions in electricity consumption is concentrated during the evening period. The reduction in electricity demand appears to persist for at least several weeks following the transition to Daylight Savings Time.
Number of Pages in PDF File: 42
Keywords: Daylight savings time, energy demand, natural experiment
JEL Classification: Q41, C22
Date posted: April 30, 2016 ; Last revised: December 14, 2016