Pub Date : 2021-09-19DOI: 10.17159/2413-3051/2021/v32i3a8852
Victor Mbua Mofema, Gisele Mah
Volatility of the oil price has been around since the 1970s and an understanding of how it evolves provides insight into solving macroeconomic challenges. The main objective of this study was to analyse the volatility of South African oil prices using quarterly time series data from 2000 to 2020. The effect of growth in gross domestic product per capita, interest rate, inflation and money supply growth on oil price changes was assessed. Generalised autoregressive conditional heteroscedasticity (GARCH) was estimated and diagnostic tests – namely ARCH, normality and autocorrelation tests – were conducted. The GARCH (1,2) model was the best fit, based on the Alkaike information criterion. The result revealed that interest rates and money supply growth have a significant positive effect on oil price changes in South Africa, while growth in GDP per capita and inflation has an insignificant impact. Past one and two-quarters’ oil price volatility increases and decreases the current oil price volatility respectively. Based on the findings, a contractionary monetary policy is recommended in order to reduce the volatility of South African oil prices.
{"title":"An empirical analysis of volatility in South African oil prices","authors":"Victor Mbua Mofema, Gisele Mah","doi":"10.17159/2413-3051/2021/v32i3a8852","DOIUrl":"https://doi.org/10.17159/2413-3051/2021/v32i3a8852","url":null,"abstract":"Volatility of the oil price has been around since the 1970s and an understanding of how it evolves provides insight into solving macroeconomic challenges. The main objective of this study was to analyse the volatility of South African oil prices using quarterly time series data from 2000 to 2020. The effect of growth in gross domestic product per capita, interest rate, inflation and money supply growth on oil price changes was assessed. Generalised autoregressive conditional heteroscedasticity (GARCH) was estimated and diagnostic tests – namely ARCH, normality and autocorrelation tests – were conducted. The GARCH (1,2) model was the best fit, based on the Alkaike information criterion. The result revealed that interest rates and money supply growth have a significant positive effect on oil price changes in South Africa, while growth in GDP per capita and inflation has an insignificant impact. Past one and two-quarters’ oil price volatility increases and decreases the current oil price volatility respectively. Based on the findings, a contractionary monetary policy is recommended in order to reduce the volatility of South African oil prices.","PeriodicalId":15666,"journal":{"name":"Journal of Energy in Southern Africa","volume":"51 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90058965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-04DOI: 10.17159/2413-3051/2021/V32I2A5856
B. Masuku, O. Nzewi
This study explores the exclusion of informal micro-enterprises from the provision of basic urban infrastructure services in Duncan Village in East London, South Africa. It focuses on the informal food sector, which is dominated by women who are often held back from participating in economic activities that are more productive, as well as from social and political functions. Basic urban infrastructures, such as trading shelters with water and electricity connections provided by municipalities, are often expensive and most informal street traders find it difficult to access them. This study examines the energy struggles of the informal street food sector and its engagement with local government on issues of inclusivity on policies regulating the sector. In-depth, semistructured interviews and focus groups were conducted with 40 participants in the informal street food sector in Duncan Village. The findings reveal the lack of energy transition in the informal street food sector, because of its heavy reliance on low-quality fuels. Unreliable and expensive energy services force informal street food enterprises into using a limited range of energy sources. The findings also reveal that the relationship between the municipality and the informal street traders is one of exclusion and negligence. It is therefore suggested that government needs to recognise and value the informal sector and livelihoods of those involved in this sector, to take into account their needs, and engage with them when designing and implementing policies that regulate the sector.
{"title":"The South African informal sector’s socio-economic exclusion from basic service provisions: A critique of Buffalo City Metropolitan Municipality’s approach to the informal sector","authors":"B. Masuku, O. Nzewi","doi":"10.17159/2413-3051/2021/V32I2A5856","DOIUrl":"https://doi.org/10.17159/2413-3051/2021/V32I2A5856","url":null,"abstract":"This study explores the exclusion of informal micro-enterprises from the provision of basic urban infrastructure services in Duncan Village in East London, South Africa. It focuses on the informal food sector, which is dominated by women who are often held back from participating in economic activities that are more productive, as well as from social and political functions. Basic urban infrastructures, such as trading shelters with water and electricity connections provided by municipalities, are often expensive and most informal street traders find it difficult to access them. This study examines the energy struggles of the informal street food sector and its engagement with local government on issues of inclusivity on policies regulating the sector. In-depth, semistructured interviews and focus groups were conducted with 40 participants in the informal street food sector in Duncan Village. The findings reveal the lack of energy transition in the informal street food sector, because of its heavy reliance on low-quality fuels. Unreliable and expensive energy services force informal street food enterprises into using a limited range of energy sources. The findings also reveal that the relationship between the municipality and the informal street traders is one of exclusion and negligence. It is therefore suggested that government needs to recognise and value the informal sector and livelihoods of those involved in this sector, to take into account their needs, and engage with them when designing and implementing policies that regulate the sector.","PeriodicalId":15666,"journal":{"name":"Journal of Energy in Southern Africa","volume":"14 1","pages":"59-71"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87847816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-04DOI: 10.17159/2413-3051/2021/V32I2A9045
P. Piliso, A. Senzanje, K. Dhavu
South Africa has been identified as having a high potential for solar powered irrigation. However, there has been a lag in the development of solar powered irrigation systems (SPIS) there, mainly due to the high investment cost associated with solar technology. South Africa has frequently implemented load shedding, which has affected many farmers. The work reported in this paper sought to determine the extent of solar powered irrigation and characteristics of the system types in use. The extent of SPIS in South Africa was determined using a questionnaire, and categorised in terms of farm size, SPIS configuration (storage of energy), type of irrigation, and location of the system. These were established mainly from a literature search. The questionnaires were administered on Survey Monkey®. The sample size of the study was 138 755 potential respondents. The number that participated and completed the questionnaires included a total of 18 SPIS engineers, installers and designers and 13 SPIS users (farmers). The main problem encountered with the distribution of the survey was finding SPIS users to participate. Results from SPIS engineers, installers and designers showed that most SPIS they implemented were in the Western Cape and the Eastern Cape, at 33% of the responses for both provinces. The total area under SPIS was found to be 364 ha, while the area under irrigation is South Africa is 1 300 00 ha, indicating a high potential for SPIS development. Some details on the extent of SPIS in South Africa were determined in this paper, but more SPIS users need to be identified to determine the details of their SPIS.
{"title":"The extent, characteristics and potential of solar powered irrigation systems in South Africa","authors":"P. Piliso, A. Senzanje, K. Dhavu","doi":"10.17159/2413-3051/2021/V32I2A9045","DOIUrl":"https://doi.org/10.17159/2413-3051/2021/V32I2A9045","url":null,"abstract":"South Africa has been identified as having a high potential for solar powered irrigation. However, there has been a lag in the development of solar powered irrigation systems (SPIS) there, mainly due to the high investment cost associated with solar technology. South Africa has frequently implemented load shedding, which has affected many farmers. The work reported in this paper sought to determine the extent of solar powered irrigation and characteristics of the system types in use. The extent of SPIS in South Africa was determined using a questionnaire, and categorised in terms of farm size, SPIS configuration (storage of energy), type of irrigation, and location of the system. These were established mainly from a literature search. The questionnaires were administered on Survey Monkey®. The sample size of the study was 138 755 potential respondents. The number that participated and completed the questionnaires included a total of 18 SPIS engineers, installers and designers and 13 SPIS users (farmers). The main problem encountered with the distribution of the survey was finding SPIS users to participate. Results from SPIS engineers, installers and designers showed that most SPIS they implemented were in the Western Cape and the Eastern Cape, at 33% of the responses for both provinces. The total area under SPIS was found to be 364 ha, while the area under irrigation is South Africa is 1 300 00 ha, indicating a high potential for SPIS development. Some details on the extent of SPIS in South Africa were determined in this paper, but more SPIS users need to be identified to determine the details of their SPIS.","PeriodicalId":15666,"journal":{"name":"Journal of Energy in Southern Africa","volume":"73 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86163310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-13DOI: 10.17159/2413-3051/2021/V32I2A8917
F. Mwaura, M. Ngigi, G. Obare
There are gaps in research needed to enhance policy intervention for rural households’ transitions from traditional biomass to cleaner energy sources. This paper reports on a survey among farmers in western Kenya to assess drivers of cooking energy choices for various key meals; to understand agricultural production factors in cooking energy choices; and to assess energy use homogeneity among varied sub-counties. The study sampled 388 respondents from four heterogeneous rural sub-counties differing in altitude, proximity to public forests, and cultural characteristics. The multinomial logit model analysis showed that significant factors influencing the shift from firewood to LPG for breakfast preparation included access to credit, income, formal employment, and the proportion of adults in the household. Shifting from firewood to crop wastes was significant, influenced by distance covered to collect firewood, and desire for warming houses. The shift from firewood to sticks was influenced by firewood cost, houses owned, and reliance on own farm for woodfuel. Determinants of cooking energy choices for breakfast, lunch and supper were identical. Sticks were seen as an inferior cooking energy source. The adoption of cleaner energy was more associated with breakfast than other meals. Despite the sub-counties’ heterogeneity, no substantial differences were observed among them on drivers of cooking energy choices. Study outcomes were consistent with other concepts associated with cooking energy usage, including the transition energy ladder and energy stacking.
{"title":"Drivers of cooking energy choices by meal-types among smallholder farmers in western Kenya","authors":"F. Mwaura, M. Ngigi, G. Obare","doi":"10.17159/2413-3051/2021/V32I2A8917","DOIUrl":"https://doi.org/10.17159/2413-3051/2021/V32I2A8917","url":null,"abstract":"There are gaps in research needed to enhance policy intervention for rural households’ transitions from traditional biomass to cleaner energy sources. This paper reports on a survey among farmers in western Kenya to assess drivers of cooking energy choices for various key meals; to understand agricultural production factors in cooking energy choices; and to assess energy use homogeneity among varied sub-counties. The study sampled 388 respondents from four heterogeneous rural sub-counties differing in altitude, proximity to public forests, and cultural characteristics. The multinomial logit model analysis showed that significant factors influencing the shift from firewood to LPG for breakfast preparation included access to credit, income, formal employment, and the proportion of adults in the household. Shifting from firewood to crop wastes was significant, influenced by distance covered to collect firewood, and desire for warming houses. The shift from firewood to sticks was influenced by firewood cost, houses owned, and reliance on own farm for woodfuel. Determinants of cooking energy choices for breakfast, lunch and supper were identical. Sticks were seen as an inferior cooking energy source. The adoption of cleaner energy was more associated with breakfast than other meals. Despite the sub-counties’ heterogeneity, no substantial differences were observed among them on drivers of cooking energy choices. Study outcomes were consistent with other concepts associated with cooking energy usage, including the transition energy ladder and energy stacking.","PeriodicalId":15666,"journal":{"name":"Journal of Energy in Southern Africa","volume":"29 5 1","pages":"41-58"},"PeriodicalIF":0.0,"publicationDate":"2021-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83406512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-13DOI: 10.17159/2413-3051/2021/V32I2A8903
H. Baloyi, S. Marx
Biomass from microalgae is a potential feedstock for biofuels production. It poses no threat to food security as it does not compete with agricultural crops for arable land. Scenedesmus acutus was used as feedstock to produce bio-oil in a large liquefaction reactor. The influence of reaction temperature (280–360oC), reaction atmosphere (N2 or CO2) and solvent on bio-oil yield, C-16 fatty acid yield and oil properties were investigated. Oils were characterised using gas chromatography, Fourier transform infrared (FTIR) spectroscopy and ultimate analysis. Higher bio-oil yields were obtained in a CO2 atmosphere (250 g.kg-1 dry microalgae) than in a N2 atmosphere (210 g.kg-1 dry microalgae) whilst higher C16 fatty acid concentrations (600 g.kg-1 bio-oil) were recorded in N2 atmosphere compared to oil prepared in a CO2 atmosphere (500 g.kg-1 bio-oil). The oil yield increased to a maximum at 320°C, after which there were no significant changes. Highest bio-oil yields (425 g.kg-1 dry microalgae) were obtained in ethanol as solvent. FTIR spectroscopy and ultimate analysis showed that proteins present in the feedstock were degraded by breakage of peptide linkages, and nitrogen present in the oils is peptide fragments from protein degradation. The carbon content of all produced oils was high, but the hydrogen content was low, leading to low hydrogen/carbon ratios. Energy consumption and energy efficiency calculations showed that liquefaction in both reaction atmospheres results in a net energy gain, and a CO2 atmosphere is best for high energy efficiency.
{"title":"Preparation of bio-oil from Scenedesmus acutus using thermochemical liquefaction in a 1 L reactor","authors":"H. Baloyi, S. Marx","doi":"10.17159/2413-3051/2021/V32I2A8903","DOIUrl":"https://doi.org/10.17159/2413-3051/2021/V32I2A8903","url":null,"abstract":"Biomass from microalgae is a potential feedstock for biofuels production. It poses no threat to food security as it does not compete with agricultural crops for arable land. Scenedesmus acutus was used as feedstock to produce bio-oil in a large liquefaction reactor. The influence of reaction temperature (280–360oC), reaction atmosphere (N2 or CO2) and solvent on bio-oil yield, C-16 fatty acid yield and oil properties were investigated. Oils were characterised using gas chromatography, Fourier transform infrared (FTIR) spectroscopy and ultimate analysis. Higher bio-oil yields were obtained in a CO2 atmosphere (250 g.kg-1 dry microalgae) than in a N2 atmosphere (210 g.kg-1 dry microalgae) whilst higher C16 fatty acid concentrations (600 g.kg-1 bio-oil) were recorded in N2 atmosphere compared to oil prepared in a CO2 atmosphere (500 g.kg-1 bio-oil). The oil yield increased to a maximum at 320°C, after which there were no significant changes. Highest bio-oil yields (425 g.kg-1 dry microalgae) were obtained in ethanol as solvent. FTIR spectroscopy and ultimate analysis showed that proteins present in the feedstock were degraded by breakage of peptide linkages, and nitrogen present in the oils is peptide fragments from protein degradation. The carbon content of all produced oils was high, but the hydrogen content was low, leading to low hydrogen/carbon ratios. Energy consumption and energy efficiency calculations showed that liquefaction in both reaction atmospheres results in a net energy gain, and a CO2 atmosphere is best for high energy efficiency.","PeriodicalId":15666,"journal":{"name":"Journal of Energy in Southern Africa","volume":"55 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2021-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79583927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-13DOI: 10.17159/2413-3051/2021/V32I2A8744
K. Ross, H. Winkler
The Paris Agreement’s enhanced transparency framework requires that all Parties track and report progress toward their nationally determined contributions (NDCs). This paper develops a qualitative, multicriteria framework that can be used to either design effective NDC tracking systems or evaluate the extent to which Parties are prepared for NDC tracking. The paper also applies the framework to a case study on South Africa, with results indicating that the country is progressing well in terms of selecting appropriate indicators, enacting legislation, and enhancing transparency. In areas of collecting data, reporting on socioeconomic outcomes, and making changes in national policy, there is room for improvement, and the paper explores options to this end. Since South Africa has a relatively advanced system for tracking mitigation goals, the findings of the paper suggest that other developing country Parties may require additional resources and capacity to track NDCs effectively. Journal of Energy in Southern Africa 32(2): 11–25 DOI: https://dx.doi.org/10.17159/2413-3051/2021/v32i2a8744 Published by the University of Cape Town ISSN: 2413-3051 https://journals.assaf.org.za/jesa This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International Licence Sponsored by the Department of Science and Innovation Corresponding author: Tel.: +1 (202) 729 7621; email katie.ross@wri.org Volume 32 Number 2
{"title":"Effective tracking of nationally determined contributions: A case study on South Africa","authors":"K. Ross, H. Winkler","doi":"10.17159/2413-3051/2021/V32I2A8744","DOIUrl":"https://doi.org/10.17159/2413-3051/2021/V32I2A8744","url":null,"abstract":"The Paris Agreement’s enhanced transparency framework requires that all Parties track and report progress toward their nationally determined contributions (NDCs). This paper develops a qualitative, multicriteria framework that can be used to either design effective NDC tracking systems or evaluate the extent to which Parties are prepared for NDC tracking. The paper also applies the framework to a case study on South Africa, with results indicating that the country is progressing well in terms of selecting appropriate indicators, enacting legislation, and enhancing transparency. In areas of collecting data, reporting on socioeconomic outcomes, and making changes in national policy, there is room for improvement, and the paper explores options to this end. Since South Africa has a relatively advanced system for tracking mitigation goals, the findings of the paper suggest that other developing country Parties may require additional resources and capacity to track NDCs effectively. Journal of Energy in Southern Africa 32(2): 11–25 DOI: https://dx.doi.org/10.17159/2413-3051/2021/v32i2a8744 Published by the University of Cape Town ISSN: 2413-3051 https://journals.assaf.org.za/jesa This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International Licence Sponsored by the Department of Science and Innovation Corresponding author: Tel.: +1 (202) 729 7621; email katie.ross@wri.org Volume 32 Number 2","PeriodicalId":15666,"journal":{"name":"Journal of Energy in Southern Africa","volume":"41 1","pages":"11-25"},"PeriodicalIF":0.0,"publicationDate":"2021-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74246946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-22DOI: 10.17159/2413-3051/2021/V32I1A8205
Lovemore Gunda, E. Chikuni, H. Tazvinga, J. Mudare
Only 40% of Zimbabwe’s population has access to electricity. The greater proportion of the power is generated from thermal stations, with some from hydro and solar energy sources. However, there is little investment in the use of wind for electricity generation except for small installations in the Eastern Highlands, as Zimbabwe generally has wind speeds which are too low to be utilised for electricity generation. This paper presents the use of vertical wind profile extrapolation methods to determine the potential of generating electricity from wind at different hub heights in Zimbabwe, using the Hellman and exponential laws to estimate wind speeds. The estimated wind speeds are used to determine the potential of generating electricity from wind. Mangwe district in Matabeleland South province of Zimbabwe was used as a test site. Online weather datasets were used to estimate the wind speeds. The investigation shows that a 2.5kW wind turbine installation in Mangwe can generate more than 3MWh of energy per annum at hub heights above 40m, which is enough to supply power to a typical Zimbabwean rural village. This result will encourage investment in the use of wind to generate electricity in Zimbabwe.
{"title":"Estimating wind power generation capacity in Zimbabwe using vertical wind profile extrapolation techniques: A case study","authors":"Lovemore Gunda, E. Chikuni, H. Tazvinga, J. Mudare","doi":"10.17159/2413-3051/2021/V32I1A8205","DOIUrl":"https://doi.org/10.17159/2413-3051/2021/V32I1A8205","url":null,"abstract":"Only 40% of Zimbabwe’s population has access to electricity. The greater proportion of the power is generated from thermal stations, with some from hydro and solar energy sources. However, there is little investment in the use of wind for electricity generation except for small installations in the Eastern Highlands, as Zimbabwe generally has wind speeds which are too low to be utilised for electricity generation. This paper presents the use of vertical wind profile extrapolation methods to determine the potential of generating electricity from wind at different hub heights in Zimbabwe, using the Hellman and exponential laws to estimate wind speeds. The estimated wind speeds are used to determine the potential of generating electricity from wind. Mangwe district in Matabeleland South province of Zimbabwe was used as a test site. Online weather datasets were used to estimate the wind speeds. The investigation shows that a 2.5kW wind turbine installation in Mangwe can generate more than 3MWh of energy per annum at hub heights above 40m, which is enough to supply power to a typical Zimbabwean rural village. This result will encourage investment in the use of wind to generate electricity in Zimbabwe.","PeriodicalId":15666,"journal":{"name":"Journal of Energy in Southern Africa","volume":"65 1","pages":"14-26"},"PeriodicalIF":0.0,"publicationDate":"2021-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91235521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-22DOI: 10.17159/2413-3051/2021/V32I1A8083
K. Imasiku, E. Ntagwirumugara
The mining industry in Zambia is energy-intensive, with hydro energy providing the required energy But other sources of energy may need to be added, because hydro energy is subject to good rain patterns, threatened by the spectre of climate change, as already indicated by the current prolonged hours of load shedding by state-owned, Zambia Electricity Supply Company This research looks at state-of-art mining technologies and collaborative business processes that leverage on the expected ramp in copper and cobalt (Cu-Co) global demand post-Covid-19, to help design resilient business systems by manufacturing, source goods and services within the Southern African Development Community (SADC) region to lower Cu-Co production costs, and maximise profits through shared resources and bilateral trade agreements With evidence, projection and predictions by global leaders in the Cu-Co industry, this study evaluates the preparedness and resilience of the Zambian mining industry for sustainable energy supply, environmental sustainability, and suggests some possible business collaborations within the SADC region to share the following resources: metal refineries, transportation of goods and services, expertise and energy supplies within SADC, to enhance business sustainability The study shows that the resilience of Cu-Co business in resource-rich nations like Zambia is complex and is heavily influenced by investment decisions, stakeholder interests, copper ore grades and extractive process types, reliable power supply, and socio-economic and political issues The significance of this study is that it proposes some business collaborations within SADC that can increase energy reliability and supply, Cu-Co production, increase business resilience, improve global competitiveness and sustainability by exploring energy efficiency and generation-mix strategy
{"title":"Sustainable energy supply and business collaborations for sustainability, resilience and competitiveness in the Zambian copper industry after Covid-19","authors":"K. Imasiku, E. Ntagwirumugara","doi":"10.17159/2413-3051/2021/V32I1A8083","DOIUrl":"https://doi.org/10.17159/2413-3051/2021/V32I1A8083","url":null,"abstract":"The mining industry in Zambia is energy-intensive, with hydro energy providing the required energy But other sources of energy may need to be added, because hydro energy is subject to good rain patterns, threatened by the spectre of climate change, as already indicated by the current prolonged hours of load shedding by state-owned, Zambia Electricity Supply Company This research looks at state-of-art mining technologies and collaborative business processes that leverage on the expected ramp in copper and cobalt (Cu-Co) global demand post-Covid-19, to help design resilient business systems by manufacturing, source goods and services within the Southern African Development Community (SADC) region to lower Cu-Co production costs, and maximise profits through shared resources and bilateral trade agreements With evidence, projection and predictions by global leaders in the Cu-Co industry, this study evaluates the preparedness and resilience of the Zambian mining industry for sustainable energy supply, environmental sustainability, and suggests some possible business collaborations within the SADC region to share the following resources: metal refineries, transportation of goods and services, expertise and energy supplies within SADC, to enhance business sustainability The study shows that the resilience of Cu-Co business in resource-rich nations like Zambia is complex and is heavily influenced by investment decisions, stakeholder interests, copper ore grades and extractive process types, reliable power supply, and socio-economic and political issues The significance of this study is that it proposes some business collaborations within SADC that can increase energy reliability and supply, Cu-Co production, increase business resilience, improve global competitiveness and sustainability by exploring energy efficiency and generation-mix strategy","PeriodicalId":15666,"journal":{"name":"Journal of Energy in Southern Africa","volume":"1 1","pages":"97-108"},"PeriodicalIF":0.0,"publicationDate":"2021-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76804327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-22DOI: 10.17159/2413-3051/2021/V32I1A8362
S. Clark, J. Van Niekerk, J. Petrie, S. Fakir
Is Karoo shale gas an economically viable option for providing the gas needed for the South African power grid? Dispatchable power generation is essential for the implementation of a renewable based electric grid system. Natural gas-fuelled generation is proposed to meet this need, with the gas being sourced from the Karoo. However, no exploration has been conducted on this resource and it is not known if it can be produced economically. Based on information from shale developments in other parts of the world and using publicly available information, this analysis calculates the likely price that this gas would require to be economically viable. The likely steps in the process to get to commercial development would be a baseline survey period, a period of exploration and appraisal drilling, followed by a pilot development. The extensive exploration programme would take about four years and likely cost over USD 450 million. This would be followed by a pilot production programme costing approximately USD 180 million. Once commercial development is achieved, a price for the gas of USD 13.67 per GJ would be required. There are a number of factors, including well recovery, well costs, royalties and operating costs that could add to this price and make this gas development less attractive. Highlights South Africa has significant shale gas potential in the Karoo. Internationally, LNG delivered prices are currently below USD 10 per GJ. South Africa shale gas breakeven price would be over USD 13.7 per GJ. An extensive and expensive exploration programme is required prior to development.
{"title":"South African shale gas economics: Analysis of the breakeven shale gas price required to develop the industry","authors":"S. Clark, J. Van Niekerk, J. Petrie, S. Fakir","doi":"10.17159/2413-3051/2021/V32I1A8362","DOIUrl":"https://doi.org/10.17159/2413-3051/2021/V32I1A8362","url":null,"abstract":"Is Karoo shale gas an economically viable option for providing the gas needed for the South African power grid? Dispatchable power generation is essential for the implementation of a renewable based electric grid system. Natural gas-fuelled generation is proposed to meet this need, with the gas being sourced from the Karoo. However, no exploration has been conducted on this resource and it is not known if it can be produced economically. Based on information from shale developments in other parts of the world and using publicly available information, this analysis calculates the likely price that this gas would require to be economically viable. The likely steps in the process to get to commercial development would be a baseline survey period, a period of exploration and appraisal drilling, followed by a pilot development. The extensive exploration programme would take about four years and likely cost over USD 450 million. This would be followed by a pilot production programme costing approximately USD 180 million. Once commercial development is achieved, a price for the gas of USD 13.67 per GJ would be required. There are a number of factors, including well recovery, well costs, royalties and operating costs that could add to this price and make this gas development less attractive. \u0000Highlights \u0000 \u0000South Africa has significant shale gas potential in the Karoo. \u0000Internationally, LNG delivered prices are currently below USD 10 per GJ. \u0000South Africa shale gas breakeven price would be over USD 13.7 per GJ. \u0000An extensive and expensive exploration programme is required prior to development. \u0000","PeriodicalId":15666,"journal":{"name":"Journal of Energy in Southern Africa","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75451768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-20DOI: 10.17159/2413-3051/2021/V32I1A8517
K. Akom, T. Shongwe, M. Joseph
The Integrated Energy Plan (IEP) was designed to consider South Africa’s energy needs from 2015 to 2050, as a guide for energy structural savings and the development of energy policy. The main aim of the Department of Energy is to ensure the security of energy supply. The current energy situation in the country has its gains and challenges. With the growing population and infrastructural development, the country requires prudent measures to meet the country’s energy needs for 2020–2050. The country’s energy is currently dominated by coal-fired plants, which represent about 70% of the total installed capacity, crude oil contributes about 21%, with only 9% from all other energy sources, including renewables. This paper examines the scope of the IEP framework, key objectives of the IEP, the methodology applied to achieve those objectives, and the projections made for attaining the framework target. The paper further reviews the energy requirements for the key sectors of the economy and analyses the effects of CO2 emissions and the benefits of job creation for the entire period. Despite substantial renewable potential in South Africa, at present it contributes as little as 2% of the energy mix. The global renewable energy policy on CO2 emissions reduction, improvement of energy efficiency and deployment of renewable development are not met in the IEP framework.
{"title":"South Africa’s integrated energy planning framework, 2015–2050","authors":"K. Akom, T. Shongwe, M. Joseph","doi":"10.17159/2413-3051/2021/V32I1A8517","DOIUrl":"https://doi.org/10.17159/2413-3051/2021/V32I1A8517","url":null,"abstract":"The Integrated Energy Plan (IEP) was designed to consider South Africa’s energy needs from 2015 to 2050, as a guide for energy structural savings and the development of energy policy. The main aim of the Department of Energy is to ensure the security of energy supply. The current energy situation in the country has its gains and challenges. With the growing population and infrastructural development, the country requires prudent measures to meet the country’s energy needs for 2020–2050. The country’s energy is currently dominated by coal-fired plants, which represent about 70% of the total installed capacity, crude oil contributes about 21%, with only 9% from all other energy sources, including renewables. This paper examines the scope of the IEP framework, key objectives of the IEP, the methodology applied to achieve those objectives, and the projections made for attaining the framework target. The paper further reviews the energy requirements for the key sectors of the economy and analyses the effects of CO2 emissions and the benefits of job creation for the entire period. Despite substantial renewable potential in South Africa, at present it contributes as little as 2% of the energy mix. The global renewable energy policy on CO2 emissions reduction, improvement of energy efficiency and deployment of renewable development are not met in the IEP framework.","PeriodicalId":15666,"journal":{"name":"Journal of Energy in Southern Africa","volume":"9 1","pages":"68-82"},"PeriodicalIF":0.0,"publicationDate":"2021-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91083591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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