Pub Date : 2020-08-01DOI: 10.1109/PowerAfrica49420.2020.9219835
B. Saka, V. Kiray
Nigeria is naturally endowed with renewable and non-renewable energy resources that can be used to generate power to meet the energy needs of the population. Despite this potential, the country is faced with a lot of challenges to develop the power sector. These challenges include network losses, inadequate funding to develop the transmission system, right of way issues to build transmission lines, environmental and social concerns. Consequently, distributed energy system (DES) has been identified as an efficient way of addressing some of these challenge by generating power close to the customer's load. This paper presents the different DES technologies and potential energy resources available in Nigeria as well as the benefits and challenges associated with integrating distributed energy system to the power grid.
{"title":"Distributed Energy System in Nigeria: Potentials, Technologies, Benefits and Challenges","authors":"B. Saka, V. Kiray","doi":"10.1109/PowerAfrica49420.2020.9219835","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219835","url":null,"abstract":"Nigeria is naturally endowed with renewable and non-renewable energy resources that can be used to generate power to meet the energy needs of the population. Despite this potential, the country is faced with a lot of challenges to develop the power sector. These challenges include network losses, inadequate funding to develop the transmission system, right of way issues to build transmission lines, environmental and social concerns. Consequently, distributed energy system (DES) has been identified as an efficient way of addressing some of these challenge by generating power close to the customer's load. This paper presents the different DES technologies and potential energy resources available in Nigeria as well as the benefits and challenges associated with integrating distributed energy system to the power grid.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122886369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-01DOI: 10.1109/PowerAfrica49420.2020.9219876
Enock Chambile, N. Ijumba, B. Mkandawire, Jean de Dieu Hakizimana
The study compared electricity generation systems using the life cycle carbon emission among the studied Kenyan, Rwandan and Tanzanian grids. The article presents the possible grid electricity generation mixes and purchase which can offer the lowest grid carbon emission. The developed inventory workbooks were adopted to account for residue carbon emissions related to the capacity survival lifetime, retired generation capacity, recycling rate and the current power trade planned in the study area. The current installed and operated grid electricity generation systems-process revealed to be a dominant emission factor in the studied grids. The study revealed the carbon reduction potential from the current grid-carbon emission upon the adoption of 100% renewable grid electricity generation mixes in the study area. The specific monitoring of the electricity generation capacity survival and retirement rates recommended for the future electrical science-policy research.
{"title":"Grid Electricity Generation Systems Comparisons Using the Life Cycle Carbon Emission Inventory","authors":"Enock Chambile, N. Ijumba, B. Mkandawire, Jean de Dieu Hakizimana","doi":"10.1109/PowerAfrica49420.2020.9219876","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219876","url":null,"abstract":"The study compared electricity generation systems using the life cycle carbon emission among the studied Kenyan, Rwandan and Tanzanian grids. The article presents the possible grid electricity generation mixes and purchase which can offer the lowest grid carbon emission. The developed inventory workbooks were adopted to account for residue carbon emissions related to the capacity survival lifetime, retired generation capacity, recycling rate and the current power trade planned in the study area. The current installed and operated grid electricity generation systems-process revealed to be a dominant emission factor in the studied grids. The study revealed the carbon reduction potential from the current grid-carbon emission upon the adoption of 100% renewable grid electricity generation mixes in the study area. The specific monitoring of the electricity generation capacity survival and retirement rates recommended for the future electrical science-policy research.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125352764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-01DOI: 10.1109/PowerAfrica49420.2020.9219948
Gideon Dadzie, E. Frimpong, Caleb Myers Allotey, E. Boateng
The paper presents an artificial intelligence approach to transformer incipient fault diagnosis. Gas concentration data for hydrogen gas (H2), methane (CH4), ethane (C2H6), ethylene (C2H4) and acetylene (C2H2) are obtained and processed by determining their relative gas concentrations. The relative gas concentrations are further transformed using a coding approach. The transformed relative gas concentrations are then fed into a multilayer perceptron neural network whose outputs give diagnosis for incipient faults. The proposed approach was tested on 145 data sets of gas concentrations. Results obtained show that the proposed approach has good prospects for quantitative diagnosis of incipient faults.
{"title":"Transformer Incipient Fault Detection Technique Based on Neural Network","authors":"Gideon Dadzie, E. Frimpong, Caleb Myers Allotey, E. Boateng","doi":"10.1109/PowerAfrica49420.2020.9219948","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219948","url":null,"abstract":"The paper presents an artificial intelligence approach to transformer incipient fault diagnosis. Gas concentration data for hydrogen gas (H<inf>2</inf>), methane (CH<inf>4</inf>), ethane (C<inf>2</inf>H<inf>6</inf>), ethylene (C<inf>2</inf>H<inf>4</inf>) and acetylene (C<inf>2</inf>H<inf>2</inf>) are obtained and processed by determining their relative gas concentrations. The relative gas concentrations are further transformed using a coding approach. The transformed relative gas concentrations are then fed into a multilayer perceptron neural network whose outputs give diagnosis for incipient faults. The proposed approach was tested on 145 data sets of gas concentrations. Results obtained show that the proposed approach has good prospects for quantitative diagnosis of incipient faults.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"175 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132467774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-01DOI: 10.1109/PowerAfrica49420.2020.9219843
O. Babayomi, Zhenbin Zhang, Jinsong Kang
In the modern power grid, the increasing level of penetration of renewable energy generation is creating a need for the augmentation of power system inertia as conventional synchronous machines are unable to provide this feature alone. Virtual synchronous generators (VSGs) make power converters to emulate the dynamic frequency response of traditional synchronous generators. In this paper, the emulated virtual inertia of a VSG is applied to improve the frequency response of a model predictive-controlled (MPC) distributed AC microgrid (MG) system. The simulated proposed control was demonstrated to be effective for high-inertia frequency response and high bandwidth voltage tracking after the occurrence of sudden active power and reactive power load changes at the common bus of the MG system.
{"title":"High-Bandwidth Distributed Virtual-Inertia Converters for AC Microgrids","authors":"O. Babayomi, Zhenbin Zhang, Jinsong Kang","doi":"10.1109/PowerAfrica49420.2020.9219843","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219843","url":null,"abstract":"In the modern power grid, the increasing level of penetration of renewable energy generation is creating a need for the augmentation of power system inertia as conventional synchronous machines are unable to provide this feature alone. Virtual synchronous generators (VSGs) make power converters to emulate the dynamic frequency response of traditional synchronous generators. In this paper, the emulated virtual inertia of a VSG is applied to improve the frequency response of a model predictive-controlled (MPC) distributed AC microgrid (MG) system. The simulated proposed control was demonstrated to be effective for high-inertia frequency response and high bandwidth voltage tracking after the occurrence of sudden active power and reactive power load changes at the common bus of the MG system.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131480933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper proposes the four different control techniques for a solar power based microgrid system. Four control techniques have been studied in this report such as Grid forming, Grid feeding, Grid supporting based on grid forming, and finally Grid supporting based on grid feeding. A prominent feature of these control schemes is that they do not require any external communication to control them rather automatically compensate according to the need. In this paper, a simple three-phase cycloconverter has been adopted to reduce the harmonics at the load bus. All simulations and performances of these control techniques are calculated through time-domain simulations by using MATLAB/SIMULINK.
{"title":"Different Controlling Techniques of A PV-Based Microgrid Systems with Reduced Harmonics","authors":"Md Jabed Hossain, Md. Omar Faruk, Md Towhidur Rahman Kha, Salman Sakib, Shuva Mitra","doi":"10.1109/PowerAfrica49420.2020.9219985","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219985","url":null,"abstract":"This paper proposes the four different control techniques for a solar power based microgrid system. Four control techniques have been studied in this report such as Grid forming, Grid feeding, Grid supporting based on grid forming, and finally Grid supporting based on grid feeding. A prominent feature of these control schemes is that they do not require any external communication to control them rather automatically compensate according to the need. In this paper, a simple three-phase cycloconverter has been adopted to reduce the harmonics at the load bus. All simulations and performances of these control techniques are calculated through time-domain simulations by using MATLAB/SIMULINK.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134316080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-01DOI: 10.1109/PowerAfrica49420.2020.9219814
Sambu Kanteh Kanteh Sakiliba, A. Hassan
This paper proposes a solar PV A-C system (SPVAC) system to address cooling requirements in hot and humid sub-Saharan Africa with a case study in Lagos Nigeria. A model was developed to access the viability of the SPVAC system when compared to scenarios with diesel generator and unstable electrical grid supply. Results obtained have indicated the economic viability and reliability of the SPVAC system especially in Nigeria with erratic grid electricity supply.
{"title":"A Case Study for Solar PV Powered Cooling System in Lagos, Nigeria","authors":"Sambu Kanteh Kanteh Sakiliba, A. Hassan","doi":"10.1109/PowerAfrica49420.2020.9219814","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219814","url":null,"abstract":"This paper proposes a solar PV A-C system (SPVAC) system to address cooling requirements in hot and humid sub-Saharan Africa with a case study in Lagos Nigeria. A model was developed to access the viability of the SPVAC system when compared to scenarios with diesel generator and unstable electrical grid supply. Results obtained have indicated the economic viability and reliability of the SPVAC system especially in Nigeria with erratic grid electricity supply.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132195396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-01DOI: 10.1109/PowerAfrica49420.2020.9219795
S. O. Showers, A. Raji
The use of internal combustion engine (ICE) vehicles has demonstrated critical problems such as climate change, environmental pollution and increased cost of gas. However, other power sources have been identified as replacement for ICE powered vehicles such as solar and electric powered vehicles for their simplicity and efficiency. Hence, the deployment of Electric vehicles (EVs) has grown significantly over the past eight years with 12, 000 electric vehicles sold in 2012, 430, 000 purchased in 2015, while the global stock was approximated at over 5 million in 2019 [1]. Therefore, this paper reviews the benefits of electric vehicles as it relates to grid resilience, provision of mobile energy, economic development, improved environment and infrastructure benefits. The study showed that significant adoption of electric vehicles will offer a wide range of benefits such as; creation of jobs, provision of power for homes and leveling electricity demand profile amongst others.
{"title":"Benefits of Electric Vehicle as Mobile Energy Storage System","authors":"S. O. Showers, A. Raji","doi":"10.1109/PowerAfrica49420.2020.9219795","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219795","url":null,"abstract":"The use of internal combustion engine (ICE) vehicles has demonstrated critical problems such as climate change, environmental pollution and increased cost of gas. However, other power sources have been identified as replacement for ICE powered vehicles such as solar and electric powered vehicles for their simplicity and efficiency. Hence, the deployment of Electric vehicles (EVs) has grown significantly over the past eight years with 12, 000 electric vehicles sold in 2012, 430, 000 purchased in 2015, while the global stock was approximated at over 5 million in 2019 [1]. Therefore, this paper reviews the benefits of electric vehicles as it relates to grid resilience, provision of mobile energy, economic development, improved environment and infrastructure benefits. The study showed that significant adoption of electric vehicles will offer a wide range of benefits such as; creation of jobs, provision of power for homes and leveling electricity demand profile amongst others.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132386474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-01DOI: 10.1109/PowerAfrica49420.2020.9219897
Mengesha Mamo Wogari
In this paper, inverter carrier frequency component voltage induced in synchronous motor rotor circuit is explored as a source of the rotor excitation current. The triangular waves for a three phase inverter (sine-triangle-modulated) supplying the machine are suggested to be phase shifted by one-third the carrier frequency period, so that rotating magneto-motive-force (mmf) at the carrier frequency can be created. The rotating mmf, hence, can induce voltage in the rotor winding circuit. The induced voltage and the resulting current in the rotor winding, then, can be rectified to keep the excitation flux in the same direction. Furthermore, variable inverter carrier frequency is suggested to vary the excitation current magnitude for field weakening operation. Simplified expressions relating the carrier frequency component current in the stator windings, in the rotor winding and rotor position angle have been developed. Preliminary simulation results using MATLAB indicate that the inverter carrier frequency can be utilized for excitation to run the motor without brush and additional external DC power supply for excitation.
{"title":"Half-wave Rectified Synchronous Motor Using Inverter Carrier - Frequency Current for Excitation","authors":"Mengesha Mamo Wogari","doi":"10.1109/PowerAfrica49420.2020.9219897","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219897","url":null,"abstract":"In this paper, inverter carrier frequency component voltage induced in synchronous motor rotor circuit is explored as a source of the rotor excitation current. The triangular waves for a three phase inverter (sine-triangle-modulated) supplying the machine are suggested to be phase shifted by one-third the carrier frequency period, so that rotating magneto-motive-force (mmf) at the carrier frequency can be created. The rotating mmf, hence, can induce voltage in the rotor winding circuit. The induced voltage and the resulting current in the rotor winding, then, can be rectified to keep the excitation flux in the same direction. Furthermore, variable inverter carrier frequency is suggested to vary the excitation current magnitude for field weakening operation. Simplified expressions relating the carrier frequency component current in the stator windings, in the rotor winding and rotor position angle have been developed. Preliminary simulation results using MATLAB indicate that the inverter carrier frequency can be utilized for excitation to run the motor without brush and additional external DC power supply for excitation.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131884450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-01DOI: 10.1109/PowerAfrica49420.2020.9219831
Julius Kilonzi Charles, Peter Musau Moses, J. M. Mbuthia
Due to the ever-increasing electricity demand, network expansion solutions from the Transmission Constrained Generation Expansion Planning (TC-GEP) process may not be adequate and thus the transmission network needs be expanded together with the generation system. Separation of the two processes of network expansion whose results must be combined during implementation will often lead to sub-optimal expansion plans. This concern has given rise to the integrated Generation and Transmission Expansion Planning (GTEP) optimization problem. In this paper the GTEP problem is formulated in a multi-objective and dynamic environment. The multi-objective function considers investment, production and outage costs as well as penalties related to system voltage violations and active power loss. In addition, the proposed formulation considers system redundancy. To increase on the reliability of the results the formulations are based on AC power flow models. The formulated MOGTEP problem is optimized using adaptive hybrid meta-heuristic approach. This approach is suitable for handling the highly dimensional and complex problem. The obtained results showed the superiority of the proposed MODGTEP formulation and solution methodology to other reviewed solution techniques. The proposed methodology produced less costly and more reliable expansion plans. Inclusion of the contingency analysis led to increase in the committed elements (generators and transmission lines) so as to account for any planned and forced outages in the system.
{"title":"Security Constrained MODGTEP using Adaptive Hybrid Meta-heuristic Approach","authors":"Julius Kilonzi Charles, Peter Musau Moses, J. M. Mbuthia","doi":"10.1109/PowerAfrica49420.2020.9219831","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219831","url":null,"abstract":"Due to the ever-increasing electricity demand, network expansion solutions from the Transmission Constrained Generation Expansion Planning (TC-GEP) process may not be adequate and thus the transmission network needs be expanded together with the generation system. Separation of the two processes of network expansion whose results must be combined during implementation will often lead to sub-optimal expansion plans. This concern has given rise to the integrated Generation and Transmission Expansion Planning (GTEP) optimization problem. In this paper the GTEP problem is formulated in a multi-objective and dynamic environment. The multi-objective function considers investment, production and outage costs as well as penalties related to system voltage violations and active power loss. In addition, the proposed formulation considers system redundancy. To increase on the reliability of the results the formulations are based on AC power flow models. The formulated MOGTEP problem is optimized using adaptive hybrid meta-heuristic approach. This approach is suitable for handling the highly dimensional and complex problem. The obtained results showed the superiority of the proposed MODGTEP formulation and solution methodology to other reviewed solution techniques. The proposed methodology produced less costly and more reliable expansion plans. Inclusion of the contingency analysis led to increase in the committed elements (generators and transmission lines) so as to account for any planned and forced outages in the system.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133883896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-01DOI: 10.1109/PowerAfrica49420.2020.9219878
Jorge V. B. Andrade, Rafael S. Salles, Maise N. S. Silva, B. Bonatto
The world is facing its most significant public health problem of the century. A COVID-19 pandemic that has spread rapidly in many different regions and countries, such as South Africa, affects health systems, economies, and societies. The South African electricity sector was also affected by the pandemic, experiencing shocks in supply and demand, putting further pressure on the country's energy systems. In this context, this study explored the preliminary impacts caused by the COVID-19 pandemic in the South African electricity sector. Such consequences resulting from the containment measures and changes in the behavior of electricity use were investigated during the seven weeks after the beginning of the country's lockdown. To achieve the aim of this paper, exploratory research was carried out, given that the phenomenon is at an early stage, making use of three secondary research methods. The results show the severe drops in electricity consumption and peak demand, which reached 28.1% and 20.2%, respectively. Finally, it is presented the challenges faced by the South African electricity sector in the context of the pandemic, highlighting the possible ways to be traced to overcome these barriers in the post-pandemic, focusing on policy structures of the country's electricity sector.
{"title":"Falling Consumption and Demand for Electricity in South Africa - A Blessing and a Curse","authors":"Jorge V. B. Andrade, Rafael S. Salles, Maise N. S. Silva, B. Bonatto","doi":"10.1109/PowerAfrica49420.2020.9219878","DOIUrl":"https://doi.org/10.1109/PowerAfrica49420.2020.9219878","url":null,"abstract":"The world is facing its most significant public health problem of the century. A COVID-19 pandemic that has spread rapidly in many different regions and countries, such as South Africa, affects health systems, economies, and societies. The South African electricity sector was also affected by the pandemic, experiencing shocks in supply and demand, putting further pressure on the country's energy systems. In this context, this study explored the preliminary impacts caused by the COVID-19 pandemic in the South African electricity sector. Such consequences resulting from the containment measures and changes in the behavior of electricity use were investigated during the seven weeks after the beginning of the country's lockdown. To achieve the aim of this paper, exploratory research was carried out, given that the phenomenon is at an early stage, making use of three secondary research methods. The results show the severe drops in electricity consumption and peak demand, which reached 28.1% and 20.2%, respectively. Finally, it is presented the challenges faced by the South African electricity sector in the context of the pandemic, highlighting the possible ways to be traced to overcome these barriers in the post-pandemic, focusing on policy structures of the country's electricity sector.","PeriodicalId":325937,"journal":{"name":"2020 IEEE PES/IAS PowerAfrica","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133251107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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