Performance assessment of solar photovoltaic technologies under different climatic conditions in Brazil.
In: Renewable Energy: An International Journal, Jg. 146 (2020-02-01), S. 1070-1082
academicJournal
Zugriff:
Utility-scale photovoltaic (PV) generation is being ramped-up in Brazil in recent years, as a result of intense price reductions. Extreme operating temperatures, high humidity levels, and a blue-biased distribution of irradiance in comparison with the standard ASTM G-173 spectrum, lead to contrasting operational outputs of the various commercially-available PV technologies. The performance assessment of six different PV technologies installed at eight different climatic regions in Brazil is presented. This R&D project evaluates eight identical, 54 kWp Evaluation Sites (ESs), all with the following PV technologies: amorphous-silicon (a-Si), microcrystalline-silicon (μc-Si), cadmium-telluride (CdTe), copper-indium-gallium-diselenide (CIGS), mono- and multi-crystalline silicon (c-Si and m-Si). All installations operate at a fixed-tilt equal to the corresponding local latitude. Electrical and environmental parameters at all sites are measured continuously at 1-s intervals. Results show a detailed energy loss analysis for all technologies. Thin-film PV modules with a low temperature-coefficient of power presented superior performance. Crystalline silicon modules revealed intense degradation in areas with high relative humidity and temperature. Cloud-edge and cloud-enhancement effects of solar irradiance resulted in irradiance peaks of 1823 W/m2, with long overirradiance events which lasted many minutes over 1600 W/m2, resulting in frequent blowing of string fuses when manufacturers maximum fuse ratings were observed. • c-Si modules revealed intense degradation in areas with high humidity and temperature. • Thin-film technologies presented a superior performance for most regions in Brazil. • Overirradiance led to blowing of string fuses when maximum fuse ratings were observed. • Optimum time resolution for irradiance data averaging is 1 min. [ABSTRACT FROM AUTHOR]
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Performance assessment of solar photovoltaic technologies under different climatic conditions in Brazil.
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Autor/in / Beteiligte Person: | do Nascimento, Lucas Rafael ; Braga, Marília ; Campos, Rafael Antunes ; Naspolini, Helena Flávia ; Rüther, Ricardo |
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Zeitschrift: | Renewable Energy: An International Journal, Jg. 146 (2020-02-01), S. 1070-1082 |
Veröffentlichung: | 2020 |
Medientyp: | academicJournal |
ISSN: | 0960-1481 (print) |
DOI: | 10.1016/j.renene.2019.06.160 |
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