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21 May 2018 Photo Naledi Posholi
Could wave power be an answer to SAs electricity crisis
Attending a recent guest lecture, were from the left: Prof Marian Tredoux UFS Department of Geology, Prof Stoffel Fourie fromWalter Sisulu University, and Thoriso Lekoetje a third-year UFS Geology student.

South Africa has a 2800-km long coastline with high wave energy potential that can generate electricity. Presenting a lecture at the UFS Department of Geology, Prof Stoffel Fourie discussed wave power as a possible solution to the country’s electricity needs. Prof Fourie is a geophysicist and the chairperson of research and development in the faculty of engineering at Walter Sisulu University.

Power at any time
Wave power is a renewable and sustainable resource. “It can provide continuous base load power because wave energy systems do not suffer from ‘time of day’ issues as other renewable energy options. This means that it can generate power at any time of the day,” said Prof Fourie. 
Discussed also was the wave power advantages and disadvantages. 

Wave energy advantages
• Wave energy is a reliable renewable energy resource;

• Reduces dependency on fossil fuels;

• Wave energy is predictable and consistent;

• Generates little or no pollution to the environment compared to other energy resources; and

• Presents no barriers or difficulty to migrating fish and aquatic animals.

Wave energy disadvantages
• Wave energy conversion devices are location dependent, thus limiting possible sites where they can be implemented;

• Offshore wave energy devices can be a threat to shipping as they are too small to detect by radar; and

• High capital investment required for start-up costs, construction and maintenance.

“Looking at both advantages and disadvantages, there is no doubt that South Africa can use this method to harvest energy. With the right investment and political buy-in, wave power could provide a continuous supply of energy and contribute to all South Africa’s electricity needs,” Prof Fourie said.

News Archive

Schoolgirl builds giant Gingerbread house for Children’s Wing Project
2015-11-13


Professor André Venter, Head: Department of Paediatrics and Child Health, Morgan Pelser, and Tertia de Bruin, Project Coordinator: Children’s Wing: UFS Marketing.
Photo: Leonie Bolleurs.

“You have to dream before your dreams can come true.” These words rang true for Morgan Pelser from Bloemfontein when she fulfilled her wish on Tuesday 3 November 2015 at the launch of her ‘big and real’ Gingerbread house.

 

Pelser, 13, said she had the idea of building the gingerbread house over six months ago and began working tirelessly, raising funds for the project. She intends to donate the money raised from this initiative to the Children’s Wing Project at Pelonomi and Universitas Hospitals. It was back in Grade 4 when she had the opportunity to tour through the ICU, neonatal and paediatric wards of the two hospitals, that she saw the need for better equipment and facilities. Pelser hopes to raise R200 000 through the initiative.

 

Professor André Venter, Head: Department of Paediatrics and Child Health at the University of the Free State, said he was greatly humbled by the perseverance and passion shown by Morgan in executing her dream. “I work with children, so I know how resilient they are, but seeing this is amazing. We tend to give up so easily,” he said. He went on to say that the money will be greatly appreciated, as it will be used to provide health-care facilities for children at both hospitals.

 

The launch of the gingerbread house was a huge success. The house is currently outside Coco C at the Loch Logan Waterfront. Members of the public are encouraged to see and taste the giant house, where they can leave a message on the inside of the house. A minimum fee of R20 is requested.

 

Professor André Venter, Head: Department of Paediatrics and Child Health, Morgan Pelser, and Tertia de Bruin, Project Coordinator: Children’s Wing: UFS-Marketing.

Photo: Leonie Bolleurs.

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