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How the electric meter configuration affect the monitored amount of self-consumed and produced excess electricity from PV systems: case study in Sweden
Högskolan i Gävle.
Högskolan i Gävle.
Högskolan Dalarna, Akademin Industri och samhälle, Energiteknik.
2017 (engelsk)Inngår i: Energy and Buildings, ISSN 0378-7788, E-ISSN 1872-6178, Vol. 138, s. 60-68Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This study evaluates how the principal function of bi-directional electric meters affects the monitored amount of self-consumed and produced excess electricity for dwelling buildings connected to the grid by three phases. The electric meters momentarily record the sum of the phases or the phases individually and then summarize the recorded values to a suitable time period and is then collected by the grid owner. In Sweden, both electric meter configurations fulfill laws and regulations.

The meter configuration affects the monitored distribution of self-consumed and produced excess electricity significantly for the investigated single-family house but is negligible for the investigated multi-dwelling buildings. The monitored self-consumed electricity produced by the PV installation for the single-family house varies between 24% and 55% depending on the configuration and how the inverter is installed for the investigated year. The difference in economic value for the produced electricity varies between 79.3 to 142 Euros.

Due to the electric meter configuration, the profitability of PV systems will be different for identical single-family houses with identical conditions. This should be corrected for a well-functioning market. It is also important to decide how the configuration should be designed to ensure that different incentives and enablers results in desired effects.

sted, utgiver, år, opplag, sider
2017. Vol. 138, s. 60-68
Emneord [en]
Solar PV technology; Buildings and PV systems; Electric meter configuration; Energy market; Energy policy
HSV kategori
Forskningsprogram
Energi, skog och byggd miljö, Reesbe företagsforskarskola
Identifikatorer
URN: urn:nbn:se:du-23554DOI: 10.1016/j.enbuild.2016.11.010ISI: 000394061200006OAI: oai:DiVA.org:du-23554DiVA, id: diva2:1055222
Forskningsfinansiär
Knowledge FoundationTilgjengelig fra: 2016-12-12 Laget: 2016-12-12 Sist oppdatert: 2017-11-29bibliografisk kontrollert

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