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Evaluation of Small Hydropower Sites in Ghana, Africa

by Y. J. Tsai, Stone & Webster Engineering, Corp, Boston, MA, USA,
R. Mascolo, Stone & Webster Engineering, Corp, Boston, MA, USA,



Document Type: Proceeding Paper

Part of: Waterpower '85

Abstract:

Six potential small sites and one mini site under construction were visited. Two additional potential sites were identified from map studies. Flow duration studies indicated that with net heads of 130 ft and 250 ft, respectively, Randall Falls and Alavanyo-Abehenasi Falls should have installed capacities of 2-280 kW and 2-300 kW units. In both cases, the plants would be isolated installations serving a local town and nearby rural areas. Capital cost estimates were generated from U. S. generalized cost data and curves. This is justified because the major capital costs are for imported components and because of estimating difficulties due to recent drastic devaluation and lack of applicable experience in the country. These two sites appeared technically and economically feasible, and their development could serve both national and local interests.

Subject Headings: Hydro power | Site investigation | Power plants | Electric power | Construction sites | Benefit cost ratios | Economic factors | Africa | Ghana

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