Browsing by Author "Walekhwa, Peter"

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    The Dynamics of Household Labor allocation to Biogas production, Farm and Non-farm activities in Central Uganda
    (Renewable Energy, 2019) Nalunga, Asha; Mugisha, Johnny; Walekhwa, Peter; Smith, Jo
    Biogas is a sustainable energy that contributes to improved health and provides socio-economic benefits. However, biogas production has an impact on an essential household resource; labor. Therefore, households need to efficiently allocate labor to activities on the farm, off-farm and for biogas production. There is little empirical evidence on the factors influencing labor allocation within farm households, thus limiting biogas technology promoters from creating a favorable environment for uptake. This study fills this gap. Data were obtained from households with biogas digesters in central Uganda through a snow-balling sampling technique. A household model was used, and labor share equations were estimated by a Seemingly Unrelated Regression model. Own activity labor returns showed a positive relationship to the respective labor share, but cross-labor returns were negatively related. Female-headed households were more likely to allocate labor to biogas activities. Distance to water source had a negative impact on labor allocation to biogas activities, while the number of cattle owned by the household had a positive impact. Age of the household head and household size had a positive impact on labor allocation to non-farm activities. Household labor should be critically analyzed before investing in biogas digesters to increase the success of the technology.
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    Socio-Economic Hurdles To Widespread Adoption Of Small-Scale Biogas Digesters In Sub-Saharan Africa: A Review
    (Biomass and Bioenergy, 2014) Mwirigi, Jecinta; Balana, Bedru; Mugisha, Johnny; Walekhwa, Peter; Melamu, Rethabile; Nakami, Sylvia; Makenzi, Paul
    The unsustainable use of fossil fuels has led to increased awareness and widespread research on the accessibility of renewable energy resources such as biogas. Biogas is a methane rich gas that is produced by anaerobic fermentation of organic material. Despite its potential to replace biomass in Africa, where over 70% of the households use wood fuel and agricultural waste for cooking, biogas technology has not been adopted by Sub-Saharan African countries compared to their Asian counterparts. This paper examines the socioeconomic constraints to adoption of biogas in Sub-Saharan Africa and explores factors that could enhance adoption of the technology. These include standardization and quality control, as well as an approach of integrated farming using biogas and slurry. The article recommends mobilization of local and external funds to promote biogas, use of ready to use funds such as the Clean Development Mechanisms in overcoming the initial construction costs of biogas units, and formation of user and disseminator associations to reduce costs by joint procurement and linkage to finance. It further advocates the promotion of multiple uses of biogas for purposes other than cooking and lighting. It is expected that widespread adoption of the technology could lead to self-sufficiency in household energy provision for cooking. This would facilitate environmental management and economic development in Sub-Saharan Africa.