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Experimental Yield Study of Bifacial PV Modules in Nordic Conditions
Dalarna Univ, Energy Technol, SE-79188 Falun, Sweden.;PPAM Solkraft AB, Corp Res, SE-59072 Ljungsbro, Sweden..
Mälardalen University, School of Business, Society and Engineering, Future Energy Center.ORCID iD: 0000-0003-3168-1569
PPAM Solkraft AB, Corp Res, SE-59072 Ljungsbro, Sweden.;Linkoping Univ, Dept Management & Engn, Div Energy Syst, SE-58183 Linkoping, Sweden..
Dalarna Univ, Energy Technol, SE-79188 Falun, Sweden..
2018 (English)In: IEEE Journal of Photovoltaics, ISSN 2156-3381, E-ISSN 2156-3403, Vol. 8, no 6, p. 1457-1463Article in journal (Refereed) Published
Abstract [en]

This study reports on the first full-year field study in Sweden using bifacial photovoltaic modules. The two test sites are located on flat roofs with a low albedo of 0.05 in Linkoping (58 degrees N) and were studied fromDecember 2016 to November 2017. Site 1 has monofacial and bifacial modules with a 40 degrees tilt facing south, which is optimal for annual energy yield for monofacial modules at this location. Site 2 has monofacial 40 degrees tilt south-facing modules and bifacial vertical east-west orientated modules. The annual bifacial energy gain (BGE) was5% at site 1 and1% at site 2 for albedo 0.05. The difference in power temperature coefficients between bifacial and monofacial modules was estimated to influence BG(E) by + 0.4 and + 0.1 percentage points on site 1 and 2, respectively. A higher albedo could be investigated on a sunny day with fresh snow for the bifacial east-west modules. The specific yield was 7.57 kWh/kW(p), which was a yield increase of 48% compared with tar paper at similar solar conditions.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2018. Vol. 8, no 6, p. 1457-1463
Keywords [en]
Bifacial, field study, Nordic, Sweden, yield
National Category
Bioenergy
Identifiers
URN: urn:nbn:se:mdh:diva-41374DOI: 10.1109/JPHOTOV.2018.2865168ISI: 000448898400008Scopus ID: 2-s2.0-85052612264OAI: oai:DiVA.org:mdh-41374DiVA, id: diva2:1288817
Available from: 2019-02-14 Created: 2019-02-14 Last updated: 2019-06-18Bibliographically approved

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