Field optimization for bifacial modules

Year: 2023

Authors: Fontani D., Jafrancesco D., Sansoni P., Nicolini A., Di Giuseppe A.,Pazzaglia A., Castellani B., Rossi F., Mercatelli L.

Autors Affiliation: CNR INO, Largo E Fermi 6, I-50125 Florence, Italy; Univ Perugia, CIRIAF, Via G Duranti 67, I-06125 Perugia, Italy.

Abstract: Bifacial modules are gaining more and more interest in PV market applications and strategies of major manu-facturers. The bifacial photovoltaic module is able to generate energy from both sides of the photovoltaic cell, thus increasing the energy production compared to a standard photovoltaic module. In order to obtain the maximum production from a bifacial panel, all the characteristics that influence its performance must be studied and optimized. The specific aim of this research work is the design of a bifacial photovoltaic field optimized for the exploitation of the albedo of the soil. The study for minimizing losses due to light reflection on the ground was conducted considering the following aspects: identification of suitable materials, optical simulations of possible configurations, field measurements on a small-scale system. To improve the RetroReflectivity (RR) of the ground the optimal RR material is the one with a diameter of microspheres of 200-300 mu m regardless of density. From the optical simulations the best configuration is a mixed ground with diffusive parts and a RR part. The results of the measurements show that once the ground is prepared in an appropriate way, we can have more than a 10% improvement in maximum power achieved and 2/3 of the light that hits the ground can be recovered.

Journal/Review: OPTICAL MATERIALS

Volume: 138      Pages from: 113715-1  to: 113715-9

More Information: The present experimental research was funded by the MInistero dellŽUniversita e della Ricerca (MUR) Italian Ministry of University and Research (MUR) under the PON Project entitled “BEST4U-Bifacial Efficient Solar Cell Technology with 4-Terminal Architecture for Utility Scale”.
KeyWords: Bifacial PV, Retro-reflective (RR) materials, Ray tracing simulations, Field measurements
DOI: 10.1016/j.optmat.2023.113715

Citations: 7
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-10-27
References taken from IsiWeb of Knowledge: (subscribers only)
Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here