Browsing by Author "Mutumba, Geoffrey Ssebabi"

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Barriers and Opportunities in Harnessing Geothermal Energy: A Case Study of East Africa
(Journal of Energy Research and Reviews, 2024-11-28) Mutumba, Geoffrey Ssebabi; Twinamasiko, Emmanuel; Kifanta, Sanday; Lule, Simon; Erugu, Elijah
This paper examines geothermal energy applications and development in East Africa. With a large geothermal power potential of 30,000MW, about 5% of this potential has been developed in the region. This study uses secondary data to review source documents, empirical literature and archival information, which was triangulated to obtain greater truths. The findings are that geothermal energy is mainly used for power generation and other direct uses. The outstanding barriers are mainly political, economic, socio-cultural, technological environmental and legal regulatory that should be overcome to achieve robust industrialisation among member countries. The prospects include Reliable Power generation, Diversified clean energy source, employment and direct uses. The concluding remarks include suggesting a policy shift to geothermal power as a clean energy option that is a credible source for sustainable industrialisation. There should be a renewable effort to train human resource, set up geothermal policy to fast truck power development options. This study investigates and brings forth the developments in the geothermal power development. It also highlights the drivers and barriers to geothermal development. It also brings possible policy measures to the social and economic planners in expanding the renewable energy sector.
Critical review of bioenergy applications and sustainable development: Evidence from Uganda
(Journal of Energy Research and Reviews, 2023-07) Mutumba, Geoffrey Ssebabi
This study investigates bioenergy applications and sustainable development in Uganda. Traditional biomass dominates Uganda’s energy mix with 89% of overall primary energy consumption. Uganda must reduce traditional biomass energy consumption, if it is to reinforce its sustainable development goals. It seeks to assess bioenergy applications; it also analyses drivers and barriers of biomass consumption. Bioenergy is a renewable energy source that is conveniently available. This explains why it is dominating in most of the Sub-Saharan Africa. However, most of this is the traditional biomass, because of the insufficient technology to modernise its use in the developing world. This study is to provide a useful pattern for this transition from traditional to modern bioenergy use to occur. The findings indicate an in-built use of traditional biomass because of the drivers that outweigh the constraints of its use. Suggested policy measures to transition to modern biomass energy consumption are made. This study provides critical review of bioenergy application and development in the Ugandan setting. This is a landmark in informing the economic planner on the right policy direction of diversifying energy use from traditional to modern sources.
Efficient tariff system in the electricity distribution: Evidence from Uganda
(Journal of Energy Research and Reviews, 2024-03) Mutumba, Geoffrey Ssebabi; Amerit, Bosco; Kaddu, Milly; Mubiinzi, Geoffrey; Bashir, Hassan; Birungi, Felister; Nakajubi, Florence; Jaza, Muhamood; Senyonga, Livingstone
This study investigates incentive regulation to foster an efficient tariff system in the electricity distribution subsector in Uganda. This study seeks to find empirical evidence to support the argument that regulation is associated with efficiency among distributors. It seeks to design an appropriate model of incentive regulation within the distribution subsector. It assesses the efficiency of existing tariff setting system with a view of guiding policy on how best incentives should be appropriated. It uses the data envelopment analysis and stochastic frontier analysis to investigate how distribution firms use input costs to come up with an efficient end user tariffs. Quarterly data used is from Electricity Regulatory Authority (ERA) covering the period 2013-2019. The findings are that distribution firms cost inputs are inconsistent with the way they their operational and maintenance costs are generated and transmitted to end user tariff. The regulator should be keen on the way tariff is set such that it is fair to all players in the electricity markets. Incentive regulation has a positive influence on cost efficiency and end user tariff. A reduction in energy losses and energy purchases from transmitter makes up the most efficient cost drivers. Lastly, tariff regulation has increased efficiency in operations through in improved quality and reliability of power distribution. First and foremost is reduced load shedding, secondly is more reliable power distribution to end users. Appropriate Incentive regulation has a direct effect on cost of utility and in increasing access of vulnerable groups.
Energy consumption and Uganda's economic growth
(Makerere University, 2023-12) Mutumba, Geoffrey Ssebabi
This study investigates the relationship between Energy Consumption and Uganda's Economic Growth (1982 to 2018). Specifically, the study investigates the short and the long run causal relationship between Energy Consumption and Uganda's Economic growth. Secondly, the study investigates the pass-through effect of shocks from Renewable Energy Consumption to Uganda's Economic Growth. Finally, the study investigates the pass-through effect of shocks from Non-Renewable Energy Consumption to Uganda's Economic growth in the period under the review. The study uses Granger Causality Test and Vector Error Correction Model (VECM) to estimate the short run and the long run causal relationship between Energy Consumption and Uganda's Economic Growth. Secondly, the study uses the Structural Vector Autoregression to estimate the pass-through effect of shocks from both Renewable and Non-Renewable Energy Consumption to Uganda's Economic Growth in the period under the review. The analyses in this study presents mixed results. The Granger causality test results show a causal relationship running from renewable energy consumption and non-renewable energy consumption to Economic growth. The VECM results indicate a negative relationship running from renewable energy consumption and non-renewable energy consumption and economic growth in the short run, while appositive relationship running from renewable and non-renewable energy consumption to Economic Growth in the long run. Although the results from Granger Causality Test and VECM indicate that Energy Consumption promotes Uganda's Economic Growth, there is no pass-through effect of shocks from both Renewable and Non-Renewable Energy Consumption to Uganda's Economic Growth in the period under the review. This study makes a contribution to energy economics literature by making an extension to the endogenous growth theory by adding Energy Consumption which is primarily endogenous to the growth process. It also contributes to exogenous growth theory by establishing Energy consumption as a key input to the growth process. The policy implications in this study includes the following; Energy Transition from Traditional Biomass to Modem Energy sources should be encouraged as this can promoted the use of Clean Energy in the country. Secondly, Public Private Investments in the Energy Sector should also be encouraged in order to promote more supply of energy in the country. Finally, Energy Policy and Governance should be streamlined in order to promote Clean Energy Development in the country and thus encouraging faster Economic Growth.
Renewable and non‑renewable energy consumption and economic growth in Uganda
(Springer Nature Business & Economics, 2022-06) Mutumba, Geoffrey Ssebabi; Odongo, Tomson; Okurut, Francis Nathan; Bagire, Vincent; Senyonga, Livingstone
This study investigates the effect of renewable energy and non-renewable consump- tion on Uganda’s economic growth in the period between 1990 and 2015. The major objective of this study is to ascertain whether there exist a credible relationship between renewable and non-renewable energy on Uganda’s economic growth in the period under the review.The study uses auto regressive distributed lag and Granger Wald test to investigate the the causal relationship between renewable and non- renewable energy consumption on Uganda’s economic growth in the period under the review. The Results in this study indicate that there exist a positive relationship between non-renewable energy consumption and Uganda’s economic growth in the short run, while there exist a negative relationship between renewable energy con- sumption and Uganda’s economic growth in the period under review. This study indicates that more empahasis should be put on the exploitation of non-renewable energy consumption in Uganda as it leads to more economic growth in the country.