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Energies
Volume 18
Issue 3
10.3390/en18030674
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Long-Term Reliability of Semi-Transparent Photovoltaic Panels Based on Luminescent Solar Concentrators †

by
Giulio Mangherini
1,
Leonardo Sollazzo
1,*,
Valentina Diolaiti
1,
Malgorzata Gawronska
2,
Carla Sanna
2,
Alfonso Damiano
3 and
Donato Vincenzi
1,4
1
Department of Physics and Earth Sciences, University of Ferrara, Saragat 1, 44122 Ferrara, FE, Italy
2
Laboratorio Energetica Elettrica, Sardegna Ricerche, VI Strada Ovest-Z.I. Macchiareddu, 09010 Cagliari, CA, Italy
3
Department of Electrical and Electronic Engineering, University of Cagliari, Marengo 2, 09123 Cagliari, CA, Italy
4
Consorzio Futuro in Ricerca, Saragat 1, 44122 Ferrara, FE, Italy
*
Author to whom correspondence should be addressed.
†
This article is a revised and expanded version of a paper entitled “A comparative study on Luminescent Solar Concentrator photodegradation and hail impact resistance”, which was presented at the International Conference on Sustainable Energies and Technologies (SET 2024), Shanghai, China, 13–15 August 2024.
Energies 2025, 18(3), 674; https://doi.org/10.3390/en18030674 (registering DOI)
Submission received: 7 January 2025 / Revised: 28 January 2025 / Accepted: 29 January 2025 / Published: 31 January 2025
(This article belongs to the Section A2: Solar Energy and Photovoltaic Systems)
Versions Notes

Abstract

Long-term reliability is crucial for the commercialization of semi-transparent photovoltaic panels based on Luminescent Solar Concentrators (LSCs). This study addresses key challenges such as photodegradation and hail resistance using glazed LSC prototypes functionalized with organic Lumogen F dyes. A pilot-scale batch of LSC prototypes (10 × 10 cm2) underwent extensive outdoor exposure tests following the IEC 62108 “10.15 Outdoor Exposure Test” to evaluate long-term stability under natural solar radiation. Continuous monitoring revealed that prototypes with Lumogen F Red 305 experienced a 29% efficiency drop initially, which stabilized over time, indicating potential long-term stability. In contrast, those with Lumogen F Violet 570 showed minimal degradation, with only a 9% efficiency reduction. Additionally, the hail resistance of LSC panels was tested using the IEC 62108 “10.9 Hail Impact Test”. Panels with varying glass thickness, tempering methods, and surface areas were subjected to impact from 25 mm hailstones launched at 22.4 ± 5% m/s. All samples remained undamaged, highlighting their excellent hail resistance, a critical feature for preserving performance despite potential surface damage. This study demonstrates that combining glazed lightguides with polyvinyl butyral improves photostability and provides a cost-effective alternative to expensive fluorophores, while ensuring compliance with hail resistance standards.
Keywords: luminescent solar concentrators (LSCs); semi-transparent photovoltaic panels; outdoors characterization; photodegradation; hail tests; colorimetry luminescent solar concentrators (LSCs); semi-transparent photovoltaic panels; outdoors characterization; photodegradation; hail tests; colorimetry

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MDPI and ACS Style

Mangherini, G.; Sollazzo, L.; Diolaiti, V.; Gawronska, M.; Sanna, C.; Damiano, A.; Vincenzi, D. Long-Term Reliability of Semi-Transparent Photovoltaic Panels Based on Luminescent Solar Concentrators. Energies 2025, 18, 674. https://doi.org/10.3390/en18030674

AMA Style

Mangherini G, Sollazzo L, Diolaiti V, Gawronska M, Sanna C, Damiano A, Vincenzi D. Long-Term Reliability of Semi-Transparent Photovoltaic Panels Based on Luminescent Solar Concentrators. Energies. 2025; 18(3):674. https://doi.org/10.3390/en18030674

Chicago/Turabian Style

Mangherini, Giulio, Leonardo Sollazzo, Valentina Diolaiti, Malgorzata Gawronska, Carla Sanna, Alfonso Damiano, and Donato Vincenzi. 2025. "Long-Term Reliability of Semi-Transparent Photovoltaic Panels Based on Luminescent Solar Concentrators" Energies 18, no. 3: 674. https://doi.org/10.3390/en18030674

APA Style

Mangherini, G., Sollazzo, L., Diolaiti, V., Gawronska, M., Sanna, C., Damiano, A., & Vincenzi, D. (2025). Long-Term Reliability of Semi-Transparent Photovoltaic Panels Based on Luminescent Solar Concentrators. Energies, 18(3), 674. https://doi.org/10.3390/en18030674

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