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Human energy requirements in Jatropha oil production for rural electrification in Tanzania

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dc.contributor.author Grimsby, Lars Kåre
dc.contributor.author Aune, Jens Bernt
dc.contributor.author Johnsen, Fred Håkon
dc.date.accessioned 2015-03-30T21:41:13Z
dc.date.available 2015-03-30T21:41:13Z
dc.date.issued 2012-05-26
dc.identifier.citation Grimsby, L. K., Aune, J. B., & Johnsen, F. H. (2012). Human energy requirements in Jatropha oil production for rural electrification in Tanzania. Energy for Sustainable Development, 16(3), 297-302. en_GB
dc.identifier.uri http://www.taccire.sua.ac.tz/handle/123456789/338
dc.description This article is available at http://www.sciencedirect.com en_GB
dc.description.abstract Mini-grids connecting households to a generator can be a solution for providing rural communities in developing countries with electricity. Substituting diesel with locally produced Jatropha oil can improve economic and environmental sustainability of rural electrification. Jatropha is known as a labor intensive crop, but little is known about how inclusion of human energy input will affect the energy balance of production of Jatropha oil. In this study we investigate human labor requirements in rural electrification with Jatropha oil. Jatropha in this study in Tanzania was grown as living fences and provided multiple benefits. An energy flow chart of generation of electricity from Jatropha oil is presented, and it is shown that human energy expenditure in production of Jatropha oil is small relative to the overall energy in the system. Time consumption however is extensive, and 7.5 hour work is required to harvest and de-hull Jatropha fruit equivalent to 1 kg Jatropha oil. 1 kg Jatropha oil can in turn provide the community with 2.5 kWh electricity through a Multi Functional Platform connected to a local grid. Potential income from harvesting Jatropha is considered so low in the study area that farmers are reluctant to venture into it. Poorer people and children in the community are allowed by the farmers to harvest for free. Collection of seeds for Jatropha oil depends on the availability of labor willing to work for an income of approximately 0.9 USD/day. Social and economic sustainability of rural electrification based on Jatropha oil can be enhanced through generous subsidy. en_GB
dc.description.sponsorship The Climate Change Impact, Adapatation and Mitigation (CCIAM) program under NORAD support. en_GB
dc.language.iso en en_GB
dc.publisher Elsevier en_GB
dc.subject Jatropha en_GB
dc.subject Rural electrification en_GB
dc.subject Human energy en_GB
dc.subject Biofuel en_GB
dc.subject Mini-grid en_GB
dc.subject Tanzania en_GB
dc.title Human energy requirements in Jatropha oil production for rural electrification in Tanzania en_GB
dc.type Article en_GB

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