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Title: Design and Modeling of a Standalone DC-Microgrid for Off-Grid Schools in Rural Areas of Developing Countries
Authors: Aemro, Yohannes Biru 
Moura, Pedro 
Almeida, Aníbal T. de 
Keywords: energy access; DC microgrid; solar photovoltaic (PV); battery storage system; off-grid effcient appliances; school energy; UN2030 agenda for sustainable development
Issue Date: 2020
Publisher: MDPI
Serial title, monograph or event: Energies
Volume: 13
Issue: 23
Abstract: Energy access is critical for health, education and social welfare improvements. In countries like Ethiopia, with a low electrification rate and with the majority of the population located in rural areas, about 76% of primary schools do not have access to electricity. This limits the hours of classes and does not allow the use of basic or modern teaching resources. O -grid solutions have emerged as potential cost-e ective alternatives to electrify rural areas and schools, but the availability of o -grid appliances and the size of the system can lead to di erent solutions. Therefore, this study proposes a DC microgrid system to supply the electricity demand of a rural school located in Ethiopia, considering load estimation scenarios with standard and high-e ciency appliances. The simulation results show that the designed DC microgrid is a valid option to electrify the rural school under each load and generation scenarios. The system costs were also evaluated, and the high-e ciency appliances option has a 51% lower cost. The study also applies to other sub-Saharan countries in the region with very low energy access rates and abundant solar energy, thus giving a large contribution to achieve the United Nations Sustainable Development Education Goal 4 (SDG 4).
ISSN: 1996-1073
DOI: 10.3390/en13236379
Rights: openAccess
Appears in Collections:FCTUC Eng.Mecânica - Artigos em Revistas Internacionais
I&D ISR - Artigos em Revistas Internacionais

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