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Analysis of status, potential and economic significance of solar water heating system in Ethiopia

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  • Endale, Alemnew

Abstract

Dependence on imported oils, unmet electric energy demand and unsustainable consumption of forestry resources for water heating are the greatest problems in Ethiopia. In this study the economic potential saving of these energy sources in future through solar water heaters (SWHs) is presented. The System Advisor Model (SAM) and Long-range Energy Alternatives Planning System (LEAP) are used for analysis in the study. It is estimated that 5.474 million m2 flat plate collector (FPC) areas can save 47,730 tonne kerosene, 45,001 tonne diesel, 1480 GWh of electric energy and 1,698,116 tonne firewood in 2025. The amount that can be saved equals to 5% of the industry diesel demand, 50% of urban households' kerosene demand and 50% of urban households' and commercial sectors’ electricity and firewood demand for hot water production. The energy saving through SWHs is analyzed considering the useful energy output at end use devices. The estimated 1480 GWh of electric energy saving is equivalent to 2.211 million m2 FPC gross areas. This energy equals to an installed power generation capacity of 691 MW wind, 429 MW hydropower or 1045 MW grid connected PV including a corresponding minimum added investment capital of 533.96 million USD, 1237.4 million USD and 1908.4 million USD.

Suggested Citation

  • Endale, Alemnew, 2019. "Analysis of status, potential and economic significance of solar water heating system in Ethiopia," Renewable Energy, Elsevier, vol. 132(C), pages 1167-1176.
    • Handle: RePEc:eee:renene:v:132:y:2019:i:c:p:1167-1176
    DOI: 10.1016/j.renene.2018.08.094
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    References listed on IDEAS

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    1. Shukla, Ruchi & Sumathy, K. & Erickson, Phillip & Gong, Jiawei, 2013. "Recent advances in the solar water heating systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 19(C), pages 173-190.
    2. Raisul Islam, M. & Sumathy, K. & Ullah Khan, Samee, 2013. "Solar water heating systems and their market trends," Renewable and Sustainable Energy Reviews, Elsevier, vol. 17(C), pages 1-25.
    3. Sabiha, M.A. & Saidur, R. & Mekhilef, Saad & Mahian, Omid, 2015. "Progress and latest developments of evacuated tube solar collectors," Renewable and Sustainable Energy Reviews, Elsevier, vol. 51(C), pages 1038-1054.
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    1. Acosta-Pazmiño, Iván P. & Rivera-Solorio, C.I. & Gijón-Rivera, M., 2021. "Scaling-up the installation of hybrid solar collectors to reduce CO2 emissions in a Mexican industrial sector from now to 2030," Applied Energy, Elsevier, vol. 298(C).

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