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ECN publicatie:
Titel:
White bifacial modules - Improved STC performance combined with bifacial energy yield
 
Auteur(s):
 
Gepubliceerd door: Publicatie datum:
ECN Zonne-energie 8-7-2016
 
ECN publicatienummer: Publicatie type:
ECN-M--16-012 Conferentiebijdrage
 
Aantal pagina's: Volledige tekst:
6 Download PDF  (145kB)

Samenvatting:
We present a novel module design to increase the power output of bifacial modules without compromising the increased energy yield due to the bifaciality. This innovation includes a highly reflective interlayer between and around the bifacial solar cells and laminated between the front and rear encapsulant. Although bifacial solar cells in modules with transparent front and rear sides can absorb light incident at either side, the transmission of (infrared) light through the rear side reduces the Pmax. The lower Wp rating is seen as a drawback for bifacial modules. The innovative white bifacial modules show almost the same front side Isc and Pmax as a monofacial module and a 2.2% higher Pmax, due to increased Isc, compared to transparent bifacial modules. The same increase is found for the rear side Pmax. The bifacial energy yield for white bifacial modules, due to the higher Pmax for both sides, is much higher than the slightly higher ground reflected “albedo” light of regular bifacial modules.


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