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Interannual and spatial variability of solar radiation energy potential in Kenya using Meteosat satellite

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Title: Interannual and spatial variability of solar radiation energy potential in Kenya using Meteosat satellite
Authors: Kariuki, Boniface Wainaina Browse this author
Sato, Tomonori Browse this author →KAKEN DB
Keywords: Renewable energy
Solar energy
Global horizontal irradiance
Direct normal irradiance
Variability
Kenya
Issue Date: Feb-2018
Publisher: Elsevier
Journal Title: Renewable energy
Volume: 116
Start Page: 88
End Page: 96
Publisher DOI: 10.1016/j.renene.2017.09.069
Abstract: Kenya is faced with a rising demand in electricity resulting from a rapidly growing economy and an increasing population. Being a tropical country, lying astride the equator, solar energy is one of the readily available renewable energy resource options to meet this need. Unfortunately, there is still very low adoption of solar systems in the country which could be majorly attributed to lack of adequate solar resource assessment. Besides, past studies" on this area in Kenya only focused on the available amount of solar resource leaving out the issue of variability. To bridge this gap, the temporal and spatial variability of global horizontal irradiance (GHI) and direct normal Irradiance (DNI) is analyzed using 19-year long (1995-2013) Meteosat satellite dataset. GHI interannual variability is low in most parts of the country but DNI has a clearly higher variability except a few locations in the East and Northern desert. Low spatial variability for GHI was recorded for locations within 1225 km(2) while DNI variability was double that of GHI. The results offer readers a quick reference of variability of solar resource at different locations in Kenya which is useful in guiding measurement requirements and consequently in promoting deployment of solar systems. (C) 2017 The Authors. Published by Elsevier Ltd.
Rights: http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article
URI: http://hdl.handle.net/2115/68008
Appears in Collections:環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 佐藤 友徳

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