气候变化领域集成服务门户(CCPortal): Photovoltaic power potential in West Africa using long-term satellite data

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DOI	10.5194/acp-20-12871-2020
	Photovoltaic power potential in West Africa using long-term satellite data
	Neher I.; Crewell S.; Meilinger S.; Pfeifroth U.; Trentmann J.
发表日期	2020
ISSN	16807316
起始页码	12871
结束页码	12888
卷号	20 期号:21
英文摘要	This paper addresses long-term historical changes in solar irradiance in West Africa (3 to 20° N and 20°W to 16° E) and the implications for photovoltaic systems. Here, we use satellite irradiance (Surface Solar Radiation Data Set - Heliosat, Edition 2.1 - SARAH-2.1) and temperature data from a reanalysis (ERA5) to derive photovoltaic yields. Based on 35 years of data (1983-2017), the temporal and regional variability as well as long-term trends in global and direct horizontal irradiance are analyzed. Furthermore, a detailed time series analysis is undertaken at four locations. According to the high spatial resolution SARAH-2.1 data record (0:05° *0:05°), solar irradiance is largest (up to a 300Wm-2 daily average) in the Sahara and the Sahel zone with a positive trend (up to 5Wm-2 per decade) and alower temporal variability (75Wm-2 between 1983 and 2017 for daily averages). In contrast, the solar irradiance is lower in southern West Africa (between 200Wm-2 and 250Wm-2) with a negative trend (up to -5Wm-2 per decade) and a higher temporal variability (up to 150Wm-2). The positive trend in the north is mostly connected to the dry season, whereas the negative trend in the south occurs during the wet season. Both trends show 95% significance. Photovoltaic (PV) yields show a strong meridional gradient with the lowest values of around 4 kWh kWp-1 in southern West Africa and values of more than 5.5 kWh kWp-1 in the Sahara and Sahel zone. © Author(s) 2020.
语种	英语
scopus关键词	irradiance; photovoltaic system; satellite data; solar radiation; temporal variation; Sahara; Sahel [Sub-Saharan Africa]
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/143846
作者单位	International Centre for Sustainable Development, University of Applied Science Bonn-Rhein-Sieg, Grantham-Allee 20, Sankt Augustin, 53757, Germany; Institute of Geophysics and Meteorology, University of Cologne, Albertus-Magnus-Platz, Cologne, 50923, Germany; Deutscher Wetterdienst, Satellite-based Climate Monitoring, Frankfurter Straße 135, Offenbach, 63067, Germany
推荐引用方式 GB/T 7714	Neher I.,Crewell S.,Meilinger S.,et al. Photovoltaic power potential in West Africa using long-term satellite data[J],2020,20(21).
APA	Neher I.,Crewell S.,Meilinger S.,Pfeifroth U.,&Trentmann J..(2020).Photovoltaic power potential in West Africa using long-term satellite data.Atmospheric Chemistry and Physics,20(21).
MLA	Neher I.,et al."Photovoltaic power potential in West Africa using long-term satellite data".Atmospheric Chemistry and Physics 20.21(2020).