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Photovoltaic self-consumption potential of alternative year-round daylight savings time
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics. (Built Environment Energy Systems Group (BEESG))
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics. (Built Environment Energy Systems Group (BEESG))
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics. (Built Environment Energy Systems Group (BEESG))
2013 (English)In: Proceedings of the 28th European Photovoltaic Solar Energy Conference (EU PVSEC), Paris, France, September 30 - October 4, 2013., 2013, 4753-4757 p.Conference paper, Published paper (Refereed)
Abstract [en]

In a mature photovoltaic (PV) market where feed-in tariffs have declined, managing of the hosting capacity of the distribution grid becomes essential by maximizing the utilization of PV. One way to increase hosting capacity is to increase self-consumption of the self-produced PV power. This paper investigates the effect of an alternative year-round daylight savings time (DST) – where the time of the entire society is changed relative to the sun - on the level of self-consumption in terms of solar fraction and load fraction of PV power both on household- and national level. Household electricity use was modeled with a Markov-chain model, PV power production was modeled from solar irradiance data, and the national level was simulated using national electricity data. Results show that one hour year-round DST shifted ahead might increase self-consumption by a fraction of one percentage point for a net-zero energy household. For a 30 GWp PV installation on a national scale with a 140 TWh annual electricity use one hour DST shift ahead had almost no effect on self-consumption. The optimal self-consumption of PV power on the national level was concluded to be the current DST setup.

Place, publisher, year, edition, pages
2013. 4753-4757 p.
National Category
Other Engineering and Technologies not elsewhere specified Energy Systems
Research subject
Engineering Science with specialization in Solid State Physics
Identifiers
URN: urn:nbn:se:uu:diva-211811DOI: 10.4229/28thEUPVSEC2013-6CV.5.30ISBN: 3-936338-33-7 (print)OAI: oai:DiVA.org:uu-211811DiVA: diva2:668702
Conference
28th European Photovoltaic Solar Energy Conference (EU PVSEC), September 30 - October 4, 2013, Paris, France
Available from: 2013-12-02 Created: 2013-12-02 Last updated: 2016-05-27Bibliographically approved

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Munkhammar, JoakimWidén, JoakimNilsson, Annica

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