Temporal and spatial solar resource variation by analysis of measured irradiance in Geba catchment, North Ethiopia
| Autor: | Mulu Bayray, Asfafaw Haileslassie, Fana Filli, Petros Gebray, Yacob Gebreyohannes, Solomon Teklemichael, Hailay Gebrehiwot, Ashenafi Kebedom, Anwar Mustefa |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Wet season
geography geography.geographical_feature_category Renewable Energy Sustainability and the Environment business.industry 020209 energy Drainage basin Irradiance Energy Engineering and Power Technology 02 engineering and technology Solar energy Spatial distribution 020401 chemical engineering Solar Resource 0202 electrical engineering electronic engineering information engineering Range (statistics) Environmental science Physical geography 0204 chemical engineering Time series business |
| Zdroj: | Sustainable Energy Technologies and Assessments. 44:101110 |
| ISSN: | 2213-1388 |
| DOI: | 10.1016/j.seta.2021.101110 |
| Popis: | The availability of solar energy resource information in Ethiopia is limited due to the lack of ground measurement stations. The aim of this work was, therefore, to estimate the temporal variation and spatial distribution of solar radiation for Geba catchment located in the Northern part of Ethiopia based on four selected measurement sites. To achieve this, ground measurement data at ten-minute interval that has been recorded for five years was employed. Time series data and temporal variation analysis were done for all the sites. The spatial distribution analysis was carried out by interpolation of the data from the sites across the catchment using Inverse Distance Weight (IDW) method of the ArcGIS software. The temporal data analysis indicated higher solar radiation of greater than 5 kWh/m2/day during the dry months of September to May and in the range of 3–4 kWh/m2/day during the rainy season of June to August. The result of the analysis on spatial distribution of solar radiation showed 5%–7.5% variation with daily average solar radiation of 5.6 kWh/m2/day across the catchment. Areas in central part around Mekelle and southern part around Mayderhu site have relatively higher solar radiation. |
| Databáze: | OpenAIRE |
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