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Technical analysis of renewable energy integration with battery energy storage systems on the Eskom grid
The Eskom fleet of coal-fired power plants is ageing and will be retired within 30 years, if not sooner. As a clean alternative towards the decarbonization of the South African electrical industry, Eskom is progressively incorporating renewable energy sources into its infrastructure. However, the in...
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| Format: | Thesis |
| Language: | English |
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Department of Electrical Engineering
2024
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| _version_ | 1867613280704397312 |
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| access_status_str | Open Access |
| author | Gongxeka, Jacqueline |
| author2 | Folly, Komla |
| author_browse | Folly, Komla Gongxeka, Jacqueline |
| author_facet | Folly, Komla Gongxeka, Jacqueline |
| author_sort | Gongxeka, Jacqueline |
| collection | Thesis |
| description | The Eskom fleet of coal-fired power plants is ageing and will be retired within 30 years, if not sooner. As a clean alternative towards the decarbonization of the South African electrical industry, Eskom is progressively incorporating renewable energy sources into its infrastructure. However, the intermittent nature of renewable energy sources provides a challenge for supply security and system stability. There seems to be a need for Eskom to integrate large-scale energy storage into its grid to maintain energy security during the transition from fossil fuels to clean energy sources. Even though load shedding has been looming since 2008 and is getting worse as the fleet of power plants ages. Eskom is routinely curtailing wind energy in the early morning due to low demand, thereby wasting energy that could have been used during peak hours. In addition, Eskom's limited financial resources necessitate the delay of certain network strengthening projects. This dissertation examines the effects of Battery Energy Storage System (BESS) on the Eskom Distribution grid. This was accomplished by selecting two Eskom BESS sites, Skaapvlei (80 MW) which will be used for ancillary services (AS) and energy support (ES) and Hex (20 MW) which will be used for AS, ES and Load shaving (LS). Both networks were modelled using DigSilent Powerfactory and hourly load data from MV90 and the Eskom data tool. Eskom contractors' BESS models were used to simulate the future network, allowing for a comparison between the current network without BESS and the future network with BESS. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/39435 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:37.862Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Department of Electrical Engineering |
| publisherStr | Department of Electrical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/39435 Technical analysis of renewable energy integration with battery energy storage systems on the Eskom grid Gongxeka, Jacqueline Folly, Komla Electrical Engineering The Eskom fleet of coal-fired power plants is ageing and will be retired within 30 years, if not sooner. As a clean alternative towards the decarbonization of the South African electrical industry, Eskom is progressively incorporating renewable energy sources into its infrastructure. However, the intermittent nature of renewable energy sources provides a challenge for supply security and system stability. There seems to be a need for Eskom to integrate large-scale energy storage into its grid to maintain energy security during the transition from fossil fuels to clean energy sources. Even though load shedding has been looming since 2008 and is getting worse as the fleet of power plants ages. Eskom is routinely curtailing wind energy in the early morning due to low demand, thereby wasting energy that could have been used during peak hours. In addition, Eskom's limited financial resources necessitate the delay of certain network strengthening projects. This dissertation examines the effects of Battery Energy Storage System (BESS) on the Eskom Distribution grid. This was accomplished by selecting two Eskom BESS sites, Skaapvlei (80 MW) which will be used for ancillary services (AS) and energy support (ES) and Hex (20 MW) which will be used for AS, ES and Load shaving (LS). Both networks were modelled using DigSilent Powerfactory and hourly load data from MV90 and the Eskom data tool. Eskom contractors' BESS models were used to simulate the future network, allowing for a comparison between the current network without BESS and the future network with BESS. 2024-04-24T12:40:51Z 2024-04-24T12:40:51Z 2023 2024-04-24T12:35:46Z Thesis / Dissertation Masters MSc (Eng) http://hdl.handle.net/11427/39435 eng application/pdf Department of Electrical Engineering Faculty of Engineering and the Built Environment |
| spellingShingle | Electrical Engineering Gongxeka, Jacqueline Technical analysis of renewable energy integration with battery energy storage systems on the Eskom grid |
| thesis_degree_str | Master's |
| title | Technical analysis of renewable energy integration with battery energy storage systems on the Eskom grid |
| title_full | Technical analysis of renewable energy integration with battery energy storage systems on the Eskom grid |
| title_fullStr | Technical analysis of renewable energy integration with battery energy storage systems on the Eskom grid |
| title_full_unstemmed | Technical analysis of renewable energy integration with battery energy storage systems on the Eskom grid |
| title_short | Technical analysis of renewable energy integration with battery energy storage systems on the Eskom grid |
| title_sort | technical analysis of renewable energy integration with battery energy storage systems on the eskom grid |
| topic | Electrical Engineering |
| url | http://hdl.handle.net/11427/39435 |
| work_keys_str_mv | AT gongxekajacqueline technicalanalysisofrenewableenergyintegrationwithbatteryenergystoragesystemsontheeskomgrid |