Effect of daylight saving time on lighting energy use: A literature review

Abstract

/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10. 1016/j.enpol.2007.05.021 Energy Policy, 36, 6, pp. 1858Policy, 36, 6, pp. -1866Policy, 36, 6, pp. , 2008 The Effect of daylight saving time on lighting energy use: a literature review Aries, M.; Newsham, G. R. The material in this document is covered by the provisions of the Copyright Act, by Canadian laws, policies, regulations and international agreements. Such provisions serve to identify the information source and, in specific instances, to prohibit reproduction of materials without written permission. For more information visit http://laws.justice.gc.ca/en/showtdm/cs/C-42Les renseignements dans ce document sont protégés par la Loi sur le droit d'auteur, par les lois, les politiques et les règlements du Canada et des accords internationaux. Ces dispositions permettent d'identifier la source de l'information et, dans certains cas, d'interdire la copie de documents sans permission écrite. Pour obtenir de plus amples renseignements : http://lois.justice.gc.ca/fr/showtdm/cs/C-42 AbstractThe principal reason for introducing (and extending) Daylight Saving Time (DST) was, and still is, projected energy savings; particularly for electric lighting. This paper presents a literature review concerning the effects of DST on energy use. Simple estimates suggest a reduction in national electricity use of around 0.5%, as a result of residential lighting reduction. Several studies have demonstrated effects of this size based on more complex simulations or on measured data. However, there are just as many studies that suggest no effect, and some studies suggest overall energy penalties, particularly if gasoline consumption is accounted for. There is general consensus that DST does contribute to an evening reduction in peak demand for electricity, though this may be offset by an increase in the morning. Nevertheless, the basic patterns of energy use, and the energy efficiency of buildings and equipment have changed since many of these studies were conducted. Therefore, we recommend that future energy policy decisions regarding changes to DST be preceded by high quality research based on detailed analysis of prevailing energy use, and behaviours and systems that affect energy use. This would be timely, given the extension to DST underway in North America in 2007.

Spring Forward at Your Own Risk: Daylight Saving Time and Fatal Vehicle Crashes

“…2 Since fatal crashes are more prevalent in the evening (online Appendix Figure A-1), it is possible that transferring light from a lower risk morning period to a higher risk evening period could lead to a net reduction in fatal crashes. 3 When conducting a review of this literature, Aries and Newsham (2008) comment that "the results of prior investigations differ and are sometimes contradictory" (p. 1863). 4 Using data from Canada covering 1991-1992, Coren (1996 finds an increase in crashes on the first Monday of DST relative to the previous and subsequent Mondays.…”

Making a Mark—Time Changing Politics from Estonia: An Alternative Idea for the British, Bulgarian and Estonian EU Presidency

“…In past times this was most probably true but there is no conclusive proof for it in modern times. Changed living and housing habits, air-conditioning and the mass usage of information and communication technologies (ICT) have eliminated or might even have reversed the energy saving effects (Aries & Newsham, 2008). There is no conclusive proof for any savings at all.…”

“…Some countries, like the United Kingdom, even experimented with double summertime and year-round summertime. However, from March 1968 to October 1971, a trial was concluded with the notion that it would be impossible to quantify results and thus no position for or against was taken (Aries & Newsham, 2008).…”

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“…Natural light significantly influences both the balance of energy use in buildings and actual human activity [29][30][31], offering the occupants comfort and health benefits. The maximizing natural light penetration is one of the most important energy saving measures on the basis of independent on conventional energy.…”