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Comparative study of soiling effect on CSP and PV technologies under semi-arid climate in Morocco

دراسة مقارنة لتأثير التلوث على تقنيات الطاقة الشمسية المركزة والطاقة الكهروضوئية في ظل المناخ شبه القاحل في المغرب
Authors: Mounir Abraim; Hicham El Gallassi; Omaima El Alani; Hicham Ghennioui; Abdellatif Ghennioui; Natalie Hanrieder; Stefan Wilbert;

Comparative study of soiling effect on CSP and PV technologies under semi-arid climate in Morocco

Abstract

L'encrassement des capteurs solaires réduit l'efficacité des technologies solaires à concentration (CSP) et photovoltaïques (PV) et augmente les coûts d'exploitation et de maintenance (O&M). De nombreux pays à fort potentiel solaire comme le Maroc sont situés dans des régions caractérisées par des conditions climatiques sèches et rudes, des tempêtes de poussière et une forte pollution. Cette étude étudie l'impact de l'encrassement sur les technologies PV et CSP sous un climat semi-aride dans la ville de BenGuerir au Maroc. À cette fin, une année de données collectées à partir de deux types de capteurs de salissure, un TraCS (Tracking Cleanliness Sensor) et DustIQ, a été évaluée. Une station météorologique installée au Green Energy Park (Maroc). Une période avec des épisodes de pluie rouge et une période sèche ont été choisies pour quantifier l'impact de l'encrassement sur les deux technologies au cours de ces périodes. On constate que l'effet de salissure pour les miroirs CSP avec un taux de salissure moyen annuel de -1,18%/jour est environ 5 à 6 fois plus élevé que pour les PV (-0,23%/jour). La perte due à l'encrassement lors des épisodes de pluie rouge a été observée plus prononcée par rapport à la période sèche.

El ensuciamiento de los colectores solares reduce la eficiencia tanto de la energía solar de concentración (CSP) como de las tecnologías fotovoltaicas (PV), y aumenta los costes de operación y mantenimiento (O&M). Muchos países con un potencial solar significativo, como Marruecos, se encuentran en regiones caracterizadas por condiciones climáticas secas y duras, tormentas de polvo y alta contaminación. Este estudio investiga el impacto de la suciedad en las tecnologías fotovoltaica y termosolar en un clima semiárido en la ciudad marroquí de BenGuerir. Para ello, se evaluó un año de datos recogidos de dos tipos de sensores de suciedad, un Tracking Cleanliness Sensor (TraCS) y DustIQ. Estación meteorológica instalada en Green Energy Park (Marruecos). Se seleccionó un periodo con lluvias rojas y un periodo seco para cuantificar el impacto de la suciedad en ambas tecnologías durante estos periodos. Se encuentra que el efecto de ensuciamiento para espejos CSP con una tasa de ensuciamiento promedio anual de -1.18%/día es alrededor de 5 a 6 veces mayor que para PV (-0.23%/día). La pérdida debido a la suciedad durante los eventos de lluvia roja se ha observado más pronunciada en comparación con el período seco.

Soiling of solar collectors reduces the efficiency of both concentrating solar power (CSP) and photovoltaic technologies (PV), and increases the operations and maintenance (O&M) costs. Many countries with significant solar potential such as Morocco are located in regions characterized by dry and harsh climatic conditions, dust storms and high pollution. This study investigates the impact of soiling on PV and CSP technologies under a semi-arid climate in BenGuerir city of Morocco. For this purpose, one year of data collected from two types of soiling sensors, a Tracking Cleanliness Sensor (TraCS) and DustIQ, was evaluated. A meteorological station installed at Green Energy Park (Morocco). A period with red rain events and a dry period were selected to quantify the impact of soiling on both technologies during these periods. It is found that the soiling effect for CSP mirrors with an annually averaged soiling rate of -1.18%/day is around 5 to 6 times higher than for PV (-0.23%/day). The loss due to soiling during red rain events has been observed more pronounced compared to the dry period.

يقلل تلوث مجمعات الطاقة الشمسية من كفاءة كل من الطاقة الشمسية المركزة (CSP) والتقنيات الكهروضوئية (PV)، ويزيد من تكاليف التشغيل والصيانة (O&M). تقع العديد من البلدان ذات الإمكانات الشمسية الكبيرة مثل المغرب في مناطق تتميز بالظروف المناخية الجافة والقاسية والعواصف الترابية والتلوث العالي. تبحث هذه الدراسة في تأثير الاتساخ على تقنيات الطاقة الشمسية الكهروضوئية والطاقة الشمسية المركزة في ظل مناخ شبه قاحل في مدينة بن جرير بالمغرب. لهذا الغرض، تم تقييم سنة واحدة من البيانات التي تم جمعها من نوعين من مستشعرات التلوث، مستشعر نظافة التتبع (TraCS) و DustIQ. محطة أرصاد جوية مثبتة في مجمع الطاقة الخضراء (المغرب). تم اختيار فترة ذات أحداث أمطار حمراء وفترة جفاف لتحديد تأثير الاتساخ على كلتا التقنيتين خلال هذه الفترات. وجد أن تأثير الاتساخ لمرايا الطاقة الشمسية المركزة بمتوسط معدل اتساخ سنوي يبلغ -1.18 ٪/يوم أعلى بحوالي 5 إلى 6 مرات من الكهروضوئية (-0.23 ٪/يوم). لوحظ الفقد بسبب الاتساخ أثناء أحداث الأمطار الحمراء بشكل أكثر وضوحًا مقارنة بفترة الجفاف.

Country
Germany
Keywords

Arid, Concentrating Solar Power, Hybrid CSP/PV systems, Oceanography, Renewable energy sources, Dry climate, Engineering, Solar energy, Storm, Climate change, Soiling loss, Solar Thermal Collectors, Solar Energy Use in Industries, Photovoltaic system, Climatology, Concentrated Solar Power Plants, Energy, Geography, Physics, Geology, Power (physics), Soiling ratio measurement, Physical Sciences, Semi-arid climate, Solar power, PV System, TJ807-830, Environmental engineering, Photovoltaic/Thermal Hybrid Technology, Quantum mechanics, Environmental science, Meteorology, Artificial Intelligence, Machine Learning Methods for Solar Radiation Forecasting, Biology, Renewable Energy, Sustainability and the Environment, FOS: Environmental engineering, Soiling ratio, Paleontology, Photovoltaic Maximum Power Point Tracking Techniques, FOS: Earth and related environmental sciences, Photovoltaics, Electrical engineering, Computer Science, Solar Thermal Energy Technologies

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    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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    influence
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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
9
Top 10%
Average
Top 10%
Green
gold