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A comparison study of PV and battery technologies for EWB off-grid electrification projects in Sub-Saharan Africa
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering.
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering.
2018 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
En jämförelsestudie av solcells- och batteritekniker för EWB elektrifieringsprojekt i Afrikanska landsbygden i Sub-Sahara (Swedish)
Abstract [en]

Only 10 % of the rural population in Sub-Saharan Africa has access to electricity. At the same time the Sub-Saharan countries are close to the equator and get many sun hours a day, leading to a huge potential for solar energy. This report aims to compare different PV system components for use in Sub-Saharan Africa to facilitate EWB for their work in electrification projects in the areas. The PV system will be compared with the following factors: economic, adoptability, scalability, environmental impact and efficiency, weighed in that order. A case simulation was made for a village around Nairobi were 20 households would be supplied with solar power. Both Polycrystalline silicon cells and thin filmed CIGS were simulated were the Poly c-Si cell was both the cost-efficient and scalable choice. Poly c-Si cells was also concluded to be advantageous of the crystalline cells by the chosen factors. Pb-acid batteries are best suited for off grid PV systems in rural areas. Different types of Pb-acid batteries can be used depending on the area’s typology. Off grid solar powered microgrids could be the solutions for an increased socioeconomic wellbeing for communities in rural areas.

Abstract [sv]

Endast 10% av lantbygdens befolkning i Subsahariska Afrika har tillgång till elektricitet. Samtidigt ligger de Subsahariska länderna nära ekvatorn och får många soltimmar per dygn, vilket leder till en stor potential för solenergi. Den här rapporten syftar till att jämföra olika solcellssystems komponenter för användning i östra Afrika för att främja Ingenjörer Utan Gränsers arbete inom elektrifierings projekt i området. Jämförelsen kommer utföras med följande faktorer, ekonomi, anpassningsförmåga, skalning, miljöpåverkan och effektivitet, viktat i den ordningen. En simulation gjordes för en by i området av Nairobi där 20 hushåll skulle få tillgång till solenergi. Både Poly kristallina celler och tunnfilm CIGS simulerades där Poly kristallina celler var både kostnadseffektivast samt det plats effektivaste valet. Polykristallina celler var även konkluderades vara det fördelaktiga valet av de kristallina cellerna utefter de valda faktorerna. Bly-syra batterier var bäst lämpade för själv stående solcellssystem på landsbygden. Olika typer av bly-syra batterier kan användas beroende på områdets typologi. Fristående solcellssystem kan vara en lösning till ett ökat socioekonomisk välmående för samhällen på landsbygden.

Place, publisher, year, edition, pages
2018. , p. 54
Series
TRITA-ABE-MBT ; 18455
Keywords [en]
PV, Photovoltaic, Solar cells, Solar panels, Batteries, Africa, Sub-Sahara, Mikronät, Comparison, Case study, Simulation, Manual, EWB, Engineers without borders
Keywords [sv]
Solceller, Solpaneler, Batterier, Afrika, Sub-Sahara, Mikronät, Jämförelse, Simulation, Manual, Ingenjörer utan gränser
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-235497OAI: oai:DiVA.org:kth-235497DiVA, id: diva2:1251322
Educational program
Master of Science in Engineering - Energy and Environment
Supervisors
Examiners
Available from: 2018-10-04 Created: 2018-09-26 Last updated: 2018-10-04Bibliographically approved

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