Techno-Economic Comparative Assessment of Asvt Versus Conventional Sub-stations for Rural Electrification
American Journal of Electrical Power and Energy Systems
Volume 5, Issue 2, March 2016, Pages: 11-16
Received: Apr. 7, 2016;
Accepted: Apr. 16, 2016;
Published: May 3, 2016
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Kitheka Joel Mwithui, Department of Electrical and Electronic Engineering, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
David Murage, Department of Electrical and Electronic Engineering, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
Michael Juma Saulo, Department of Electrical and Electronic Engineering, Technical University of Mombasa, Mombasa, Kenya
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The overall electricity access rate is still very low in most sub-Saharan African (SSA) countries. The rate is even lower in rural areas where most of the population in these countries lives. In Kenya about 8% of rural communities lives at close proximity to High voltage transmission lines yet they have no electricity. One of the main obstacles to rural electrification (RE) is the high cost of laying the distribution infrastructure owing to the dispersed nature of loads and low demand. Thus, electrifying the rural areas needs to be considered holistically and not just on the financial viability. To reduce cost, it is important that auxiliary service voltage transformer (ASVT) sub-station, which are cheaper than the conventional sub-station be explored. This research aimed at carrying out the techno-economic assessment of Auxiliary service voltage transformer sub-station and the conventional sub-station that can be used to step down 132kv supply from transmission line to 240v to supply single phase loads in rural areas where there is no any nearby conventional sub-station but there are trunks of high voltage transmission lines at close proximity. The research further explored the maximum number of ASVT sub-stations that can be terminated on 132kv within a specified distance beyond which it would be economically viable to use a conventional sub-station. In this research local prices and the life cycle costing of sub-stations were used.
Auxiliary Service Voltage Transformer (ASVT), Techno-Economic Assessment (TEA), Transmission Line (TL), Life Cycle Costing (LCC), Conventional Sub-station (CS)
To cite this article
Kitheka Joel Mwithui,
Michael Juma Saulo,
Techno-Economic Comparative Assessment of Asvt Versus Conventional Sub-stations for Rural Electrification, American Journal of Electrical Power and Energy Systems.
Vol. 5, No. 2,
2016, pp. 11-16.
Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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