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Is small-scale biogas production a viable source of electricity in rural Sub-Saharan Africa?
Blekinge Institute of Technology, Department of Spatial Planning, Karlskrona, Sweden.
Mälardalens universitet, Akademin för ekonomi, samhälle och teknik, Framtidens energi.
Mälardalens universitet, Akademin för ekonomi, samhälle och teknik, Framtidens energi.ORCID-id: 0000-0002-5014-3275
2024 (Engelska)Ingår i: Energy Proceedings, Scanditale AB , 2024, Vol. 42Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

This study investigates the benefits and limitations of small-scale biogas technology at the household level in rural Sub-Saharan Africa. A literature study and a case study were done to explore if small-scale biogas production is a viable source of electricity in rural Sub-Saharan Africa. The results show that using cattle manure as feedstock requires a daily substrate flow of 750 L of the diluted substrate, i.e. 250 kg of manure and 500 L of water for a 24-hour electricity supply, using a 2-kW generator. This requires a minimum herd size of 25 cattle. Most households don’t have so many cattle. However, a herd of 10 cattle provides enough biogas to power several electrical appliances, significantly improving the household's energy situation. The study concludes that the uptake of biogas technology in Sub-Saharan Africa is slow. Common barriers include inadequate substrate supply, lack of water and variable temperatures, high initial costs, poor technical quality, intense labour operations and maintenance, and insufficient policy support. Improved uptake of biogas technology in Sub-Saharan Africa requires establishing national institutional frameworks and supporting policies, collaboration with the intended users of the technology and local support organisations, ensuring long-term local availability of spare parts and supplies, and, when household-level access to feedstock is limited, centralise biogas systems on the village level to combine feedstock into one production system.

Ort, förlag, år, upplaga, sidor
Scanditale AB , 2024. Vol. 42
Nyckelord [en]
cattle manure, electricity generation, rural electrification, small-scale biogas digester
Nationell ämneskategori
Energiteknik
Identifikatorer
URN: urn:nbn:se:mdh:diva-66553DOI: 10.46855/energy-proceedings-11003Scopus ID: 2-s2.0-85190847060OAI: oai:DiVA.org:mdh-66553DiVA, id: diva2:1857742
Konferens
15th International Conference on Applied Energy, ICAE 2023. Doha. 3 December 2023 through 7 December 2023
Tillgänglig från: 2024-05-14 Skapad: 2024-05-14 Senast uppdaterad: 2024-05-14Bibliografiskt granskad

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Mabecua, Fastudo JorgeSchwede, Sebastian

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