期刊
SOLAR ENERGY
卷 211, 期 -, 页码 1459-1468出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2020.10.028
关键词
Soiling; Monitoring; Sensor; Transmittance losses; Thermal characterization; Reliability
资金
- Spanish Ministry of Science, Innovation and Universities under the program Ayudas para la formacion de profesorado universitario (FPU), 2018 [FPU18/01460]
- Spanish Ministry of Science, Innovation and Universities [RYC-2017-21910]
- European Union's Horizon 2020 research and innovation programme under the NoSoilPV project (Marie Sklodowska-Curie grant) [793120]
- COST (European Cooperation in Science and Technology) [CA16235]
- U.S. Department of Energy (DOE) [DEAC3608GO28308]
- DOE's Office of Energy Efficiency and Renewable Energy under Solar Energy Technologies Office [30311, 34348]
Nowadays, photovoltaic (PV) technology has reached a high level of maturity in terms of module efficiency and cost competitiveness in comparison with other energy technologies. As PV has achieved high levels of deployment, the development of devices that can help to reduce PV operation and maintenance costs has become a priority. Soiling can be cause of significant losses in certain PV plants and its detection has become essential to ensure a correct mitigation. For this reason, accurate and low-cost monitoring devices are needed. While soiling stations have been traditionally employed to measure the impact of soiling, their high cost and maintenance have led to the development of innovative low-cost optical sensors, such as the device presented in this work and named DUSST (Detector Unit for Soiling Spectral Transmittance). The thermal characterization of DUSST's components and the methodology used to predict soiling transmittance losses are presented in this study. The results show that the losses can be predicted with an error lower than 1.4%. The method has been verified with an experimental campaign with naturally soiled coupons exposed outdoors in Jae ' n, Spain.
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