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Geographical Mapping of the Performance of Vertically Installed Bifacial Modules
M. Ito, E. Gerritsen
Bifacial, Energy Performance, Vertical Installation, Global Analysis
Operation, Performance, Reliability and Sustainability of Photovoltaics
Subtopic: Operation of PV Systems
Event: 32nd European Photovoltaic Solar Energy Conference and Exhibition
Session: 5CO.14.1
1603 - 1609
ISBN: 3-936338-41-8
Paper DOI: 10.4229/EUPVSEC20162016-5CO.14.1
0,00 EUR
Document(s): paper, presentation


Bifacial modules offer the unique potential of vertical installation with benefits in reducing soiling or snow coverage. Moreover, mixing East/West and North/South oriented vertical modules will level out the energy production over the day, aligning energy production to demand and so reducing the required storage capacity. We apply modelling based on global irradiance (direct / diffuse / land reflection) and albedo data maps to quantify energy performance of vertically installed modules as a function of their geographical location. We compare vertically installed bifacial modules against tilted monofacial and bifacial equator-oriented (EO) tilted modules. In regions at higher northern latitudes (>40°) and the polar regions, vertical bifacial installations are found to be energy efficient compared to monofacial tilted modules and equally useful to levelling of energy production over the day by mixing E/W and S/N orientations. Also large (semi-) arid regions below the 20° latitude line are found to be favorable for vertical bifacial installations due to their high albedo.