Publications

A technical feasibility study on the implementation of a biogas promotion programme in the Sikasso region in Mali (2007).

Study findings in terms of technical feasibility revealed that although water resources availability was sufficient for a biogas system, and the average temperature allowed for the installation to function, collecting manure difficulties proved to be the biggest challenge, as it was not guaranteed throughout the year due to the temporary migration in the dry season. Further, the number of families that do have cattle around the household year-round was too small. A biogas system that requires daily input was, therefore, not feasible in the studied context. In terms of energy consumption, kerosene was the most widely lighting source used and its costs were constantly rising which was seen as a considerable problem by rural households. Further, if biogas was to be introduced, both men and women would use it mainly for lighting and not for cooking. In terms of financing, it was concluded that even with a high subsidy the value of the biodigester was considered insufficient.

Based on the study results, it was concluded that biogas introduction would most likely be unsuccessful in the studied region. Firstly, this is because there is absence of a regular supply of dung at most farms. Secondly, the costs for the biogas plant construction are high because of the need for large batch-fed plants, and thirdly, gas would only be used for lighting which makes other renewable energy sources more suitable.