Techno-Economic Analysis of Small Hydropower Plant Development in Southwestern Nigeria.
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Date
2014
Authors
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Journal ISSN
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Publisher
Obafemi Awolowo University
Abstract
The study identified the available dams and assessed the barriers to small hydropower plant systems in Southwestern Nigeria, surveyed available technologies for small hydropower plant for production of electrical energy and assessed the engineering economics and human capability of small hydropower plant. This was done with a view to making appropriate recommendations for policy formulation and implementation in the power sector.
Data on the technical specifications for and barriers to small hydro power energy development in Southwestern Nigeria as well as information on economic factors such as investment, operating costs, salvage value, life of the project and revenue received were sourced from Nigerian Electricity Regulatory Commission (NERC), Energy Commission of Nigerian (ECN), Ministry of Power, Power Holding Company of Nigeria (PHCN) and Nigerian Integrated Power Projects (NIPP). The information were obtained using structured questionnaire sets administered on 120 respondents purposively selected from the institutions listed above. The data obtained were analysed using descriptive statistics and engineering economy methods.
The study identified three major dams in Ondo, five in Ekiti, six in Osun, ten in Oyo and two in Ogun States. Nineteen percent (19%) of the respondents agreed that incentives to local manufacturing suppliers and users of small hydropower electrical system components will not affect adequate utilization of small hydropower into electricity generation while the majority (80.9%) disagreed. It also showed that 35.8% and 46.7% agreed that promotional and advocacy activities on small hydropower electricity as well as Research and Development into small hydropower electricity technology will influence its utilization. Also, some barriers to hydropower systems were identified which include funding, resources base, poor infrastructure, lack of integration and communication among agencies and absence of specific design for small hydropower plants. The identified appropriate technologies for small hydropower development depending on the available head range between 7.5m and 400m designed for any of the already identified dams include cross flow type, vertical tubular and horizontal francis. The Engineering Economics of small hydropower plant development showed that the revenue from electricity in the area using the year 2010 template to be unviable with present worth of - ₦8,165,965.56 and Annual worth of - ₦1,328,051.59 for 10-year target and present worth of - ₦3,794,686.01 and annual worth of - ₦446,515.99 for 20-year target. The revenue from electricity using year 2012 template was estimated to be viable with present worth of ₦7,961,477.31 and Annual worth of ₦1,296,557.54 for 10-year target, present worth of ₦18,550,186.28 and annual worth of ₦2,778,093.14 for 20-year target.
In conclusion, the study determined that electricity generation from small hydropower plants in Southwestern Nigeria was technologically and economically viable for year 2012 due to the review of tariff payable by the consumers over the 2010 template which was not technologically and economically viable.
Description
xiv,118
Keywords
Hydropower, Plant, Investiment, NERC, ECN, Southwestern, Nigeria, NIPP
Citation
Oloruntoba,W.AB(2014).Techno-Economic Analysis of Small Hydropower Plant Development in Southwestern Nigeria.Obafemi Awolowo University.