The role of ecological governance on the success and sustainability of solar energy initiatives
- Authors: Netshiozwi, Edzisani Ellen
- Date: 2019
- Subjects: Energy development , Solar energy industries , Sustainable development , Renewable energy sources , Solar energy - Economic aspects - South Africa - Limpopo
- Language: English
- Type: Doctoral (Thesis)
- Identifier: http://hdl.handle.net/10210/410974 , uj:34515
- Description: Abstract: Climate change phenomenon has in recent years made countries to rise together with concerted efforts to deal with its impact on the ecosystem, economy, public health and the socio-economic conditions. The energy sector in South Africa, much as globally, is the highest contributor to climate change because of its high emission levels of Green House Gasses (GHGs) that are mostly contributed by the electricity supply industry. Thus, the majority of climate change causes in South Africa are anthropogenic. Anthropogenic causes of climate change can only be addressed if there are proper strategies to internalise negative externalities of the current growth and development trajectory. In South Africa, where energy generation is dominated by coal burning, it became evident that this problem must be addressed, not as an option but a priority. The country embarked on a number of initiatives which among others include solar energy programmes... , D.Phil. (Development Studies)
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- Authors: Netshiozwi, Edzisani Ellen
- Date: 2019
- Subjects: Energy development , Solar energy industries , Sustainable development , Renewable energy sources , Solar energy - Economic aspects - South Africa - Limpopo
- Language: English
- Type: Doctoral (Thesis)
- Identifier: http://hdl.handle.net/10210/410974 , uj:34515
- Description: Abstract: Climate change phenomenon has in recent years made countries to rise together with concerted efforts to deal with its impact on the ecosystem, economy, public health and the socio-economic conditions. The energy sector in South Africa, much as globally, is the highest contributor to climate change because of its high emission levels of Green House Gasses (GHGs) that are mostly contributed by the electricity supply industry. Thus, the majority of climate change causes in South Africa are anthropogenic. Anthropogenic causes of climate change can only be addressed if there are proper strategies to internalise negative externalities of the current growth and development trajectory. In South Africa, where energy generation is dominated by coal burning, it became evident that this problem must be addressed, not as an option but a priority. The country embarked on a number of initiatives which among others include solar energy programmes... , D.Phil. (Development Studies)
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Renewable energy storage in the Republic of South Africa
- Van der Walt, Andries Jacobus
- Authors: Van der Walt, Andries Jacobus
- Date: 2017
- Subjects: Renewable energy sources - South Africa , Electric power production - South Africa , Energy development
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/263147 , uj:27814
- Description: M.Ing. (Electrical Engineering) , Abstract: The objectives were to perform extensive research on the South African Renewable Energy Storage capabilities and business case. The focus was also to investigate the advantages it would bring to the country to invest in energy storage solutions to aid in not only meeting their electricity demand forecasted for the next 25 to 40 years but also focussing on the energy dips, known as the Duck Curve”. In other words providing flexibility to the National Grid in parallel whilst also reducing the carbon footprint of the current generating station by either remodelling them, or to completely replace them with a better solution such as renewable energy with storage. This involves looking into the country’s previous, current and forecasted energy demands and energy sources available and comparing that results when a storage component is added to multiple parts on the grid. Alternatively, to investigate the ability to store electricity generated from any large power source (preferably Renewable Power Sources) efficiently and safely to support big communities, towns or cities for at least 24 hours at a continuous stable rate and the transmission and distribution infrastructure benefits there are when adding a storage component. The final expected output of the research would be to develop a basic spread sheet calculator capable of calculating the energy and financial impact it would have when implementing a certain amount of storage onto the national grid.
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- Authors: Van der Walt, Andries Jacobus
- Date: 2017
- Subjects: Renewable energy sources - South Africa , Electric power production - South Africa , Energy development
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/263147 , uj:27814
- Description: M.Ing. (Electrical Engineering) , Abstract: The objectives were to perform extensive research on the South African Renewable Energy Storage capabilities and business case. The focus was also to investigate the advantages it would bring to the country to invest in energy storage solutions to aid in not only meeting their electricity demand forecasted for the next 25 to 40 years but also focussing on the energy dips, known as the Duck Curve”. In other words providing flexibility to the National Grid in parallel whilst also reducing the carbon footprint of the current generating station by either remodelling them, or to completely replace them with a better solution such as renewable energy with storage. This involves looking into the country’s previous, current and forecasted energy demands and energy sources available and comparing that results when a storage component is added to multiple parts on the grid. Alternatively, to investigate the ability to store electricity generated from any large power source (preferably Renewable Power Sources) efficiently and safely to support big communities, towns or cities for at least 24 hours at a continuous stable rate and the transmission and distribution infrastructure benefits there are when adding a storage component. The final expected output of the research would be to develop a basic spread sheet calculator capable of calculating the energy and financial impact it would have when implementing a certain amount of storage onto the national grid.
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Solar irradiance calculations for solar power generating devices operating in South African conditions
- Authors: Webber, Graham
- Date: 2016
- Subjects: Solar radiation - South Africa , Solar thermal energy , Energy development , Photovoltaic power generation
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/235947 , uj:24139
- Description: M.Sc. (Physics) , Abstract: Please refer to full text to view abstract
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- Authors: Webber, Graham
- Date: 2016
- Subjects: Solar radiation - South Africa , Solar thermal energy , Energy development , Photovoltaic power generation
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/235947 , uj:24139
- Description: M.Sc. (Physics) , Abstract: Please refer to full text to view abstract
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The performance of distance protection relay on series compensated line under fault conditions
- Magagula, X. G., Nicolae, Dan-Valentin, Yusuff, A. A
- Authors: Magagula, X. G. , Nicolae, Dan-Valentin , Yusuff, A. A
- Date: 2015
- Subjects: Distributed generation of electric power , Power resources , Energy development
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/17172 , uj:15850 , ISBN 9781479974979 , Citation: Magagula, X., Nicolae, D.V., & Yusuf, A.A. 2015. The performance of distance protection relay on series compensated line under fault conditions. In: Proceedings of the Africon 2015, 14-19 September 2015, Addis-Ababa:630-635 , ISBN:9781479974979
- Description: Abstract: This paper presents the behaviour of the distance protection relays on a series compensated transmission line under fault conditions. Series compensation presents distance protection elements with unorthodox line impedance and as a result the relays may operate incorrectly. Sub-harmonic oscillations and non-linearity of the line impedance are some of the challenges introduced by series compensation of transmission lines. The study is carried out in a Digsilent power factory environment and results pertaining to the response of the distance relay on a 400 kV series compensated line under fault conditions are presented
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- Authors: Magagula, X. G. , Nicolae, Dan-Valentin , Yusuff, A. A
- Date: 2015
- Subjects: Distributed generation of electric power , Power resources , Energy development
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/17172 , uj:15850 , ISBN 9781479974979 , Citation: Magagula, X., Nicolae, D.V., & Yusuf, A.A. 2015. The performance of distance protection relay on series compensated line under fault conditions. In: Proceedings of the Africon 2015, 14-19 September 2015, Addis-Ababa:630-635 , ISBN:9781479974979
- Description: Abstract: This paper presents the behaviour of the distance protection relays on a series compensated transmission line under fault conditions. Series compensation presents distance protection elements with unorthodox line impedance and as a result the relays may operate incorrectly. Sub-harmonic oscillations and non-linearity of the line impedance are some of the challenges introduced by series compensation of transmission lines. The study is carried out in a Digsilent power factory environment and results pertaining to the response of the distance relay on a 400 kV series compensated line under fault conditions are presented
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Impacts of primary energy constraints in the 21st century
- Authors: Nel, Willem P.
- Date: 2010-03-25T06:25:17Z
- Subjects: Energy conservation , Energy development , Power resources , Fossil fuels , Nuclear energy , Sustainable development , Economic development , Global warming
- Type: Thesis
- Identifier: uj:6691 , http://hdl.handle.net/10210/3094
- Description: D.Phil. , Global society has evolved into a complex multi-dimensional system in which it has become increasingly difficult to construct and maintain a systemic model of cause and effect. Specialisation and abstraction in the various disciplines of scientific and societal complexity has led to divergent theories of sustainability. Failure to integrate real life problems across disciplines poses a threat to modern society because the causal links between disciplines are unattended in many instances and events in one dimension could lead to catastrophic unintended consequences in another. In light of the above, this thesis contributes towards the multi-disciplinary integration of some of the most important sustainability concerns of modern society, namely Energy Security, Economic Growth and Global Warming. Analysing these real-life sustainability issues in a multi-disciplinary context leads to conclusions that are controversial in terms of established philosophical worldviews and policy trends. Firstly, the thesis establishes deterministic expectations of an imminent era of declining Energy Security resulting from the exhaustion of non-renewable fossil fuel resources, despite optimistic expectations of technology improvements in alternative energy sources such as renewable and nuclear. Secondly, the exhaustion of non-renewable fossil fuel resources imposes limits to the potential sources of anthropogenic carbon emissions that render the more pessimistic emissions cases considered in the global warming debate irrelevant. The lower level of attainable carbon emissions challenges the merits of the conventional carbon feedback cycle with the result that the predicted global warming is within acceptance limits of the contemporary global warming debate. Thirdly, the consequences of declining Energy Security on socio-economic welfare is a severe divergence from historical trends and demands the reassertion of the role of energy in human development, including Economic Growth theory. The thesis develops a novel economic growth model that treats energy as an explicit and Autonomous Factor of Production, thereby facilitating plausible predictions of future Economic Growth potential. The results challenge the sustainability of the current free-market capitalist economic system and demand strong policy responses to avoid the collapse of modern society.
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- Authors: Nel, Willem P.
- Date: 2010-03-25T06:25:17Z
- Subjects: Energy conservation , Energy development , Power resources , Fossil fuels , Nuclear energy , Sustainable development , Economic development , Global warming
- Type: Thesis
- Identifier: uj:6691 , http://hdl.handle.net/10210/3094
- Description: D.Phil. , Global society has evolved into a complex multi-dimensional system in which it has become increasingly difficult to construct and maintain a systemic model of cause and effect. Specialisation and abstraction in the various disciplines of scientific and societal complexity has led to divergent theories of sustainability. Failure to integrate real life problems across disciplines poses a threat to modern society because the causal links between disciplines are unattended in many instances and events in one dimension could lead to catastrophic unintended consequences in another. In light of the above, this thesis contributes towards the multi-disciplinary integration of some of the most important sustainability concerns of modern society, namely Energy Security, Economic Growth and Global Warming. Analysing these real-life sustainability issues in a multi-disciplinary context leads to conclusions that are controversial in terms of established philosophical worldviews and policy trends. Firstly, the thesis establishes deterministic expectations of an imminent era of declining Energy Security resulting from the exhaustion of non-renewable fossil fuel resources, despite optimistic expectations of technology improvements in alternative energy sources such as renewable and nuclear. Secondly, the exhaustion of non-renewable fossil fuel resources imposes limits to the potential sources of anthropogenic carbon emissions that render the more pessimistic emissions cases considered in the global warming debate irrelevant. The lower level of attainable carbon emissions challenges the merits of the conventional carbon feedback cycle with the result that the predicted global warming is within acceptance limits of the contemporary global warming debate. Thirdly, the consequences of declining Energy Security on socio-economic welfare is a severe divergence from historical trends and demands the reassertion of the role of energy in human development, including Economic Growth theory. The thesis develops a novel economic growth model that treats energy as an explicit and Autonomous Factor of Production, thereby facilitating plausible predictions of future Economic Growth potential. The results challenge the sustainability of the current free-market capitalist economic system and demand strong policy responses to avoid the collapse of modern society.
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Energie-prestasiekontraktering: 'n geleentheid tot hoër energie-effektiwiteit
- Authors: Meyer, Josua Petrus
- Date: 2008-11-03T07:14:43Z
- Subjects: Energy development , Energy consumption , Energy services firms , Energy conservation
- Type: Inaugural
- Identifier: http://ujcontent.uj.ac.za8080/10210/379664 , uj:14899 , http://hdl.handle.net/10210/1449
- Description: Inaugural lecture--Dept. of Mechanical and Production Engineering, Rand Afrikaans University, 19 September 1996
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- Authors: Meyer, Josua Petrus
- Date: 2008-11-03T07:14:43Z
- Subjects: Energy development , Energy consumption , Energy services firms , Energy conservation
- Type: Inaugural
- Identifier: http://ujcontent.uj.ac.za8080/10210/379664 , uj:14899 , http://hdl.handle.net/10210/1449
- Description: Inaugural lecture--Dept. of Mechanical and Production Engineering, Rand Afrikaans University, 19 September 1996
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