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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

University is proud of its women in science
2013-08-17

 

Dr Marieka Gryzenhout
Photo: Sonia Small
19 August 2013

Two lecturers in the Department of Plant Sciences received national recognition for their research at the Women in Science Award 2013 function of the Department of Science and Technology (DST) on Friday 16 August 2013. Dr Marieka Gryzenhout received the award as Young Women Scientist and Prof Maryke Labuschagne was first runner-up in the category Distinguished Women Researcher, both in Life Sciences.

The third award-winner was Rose Lekhooa in the Doctoral Fellowship category. She is studying toward a PhD in Pharmacology and said the fellowship will enable her to attend seminars and workshops internationally.

Friday’s award was the second, in as many months, for Dr Gryzenhout. She received the TW Kambule NRF-NSTF Award as emerging researcher in June 2013. She was the recipient of the International Union of Forestry Research Organizations’ Outstanding Doctoral Research award in 2010.

Prof Jonathan Jansen, Vice-Chancellor and Rector of the UFS, said, “Dr Gryzenhout represents one of a growing group of very impressive young scientists at the university who are emerging as leading international scholars in their fields.

“Her international leadership in mycology research has already made significant impacts on the African continent and beyond. The university will continue to invest in these young academic stars through its Prestige Scholars Programme where scholars like Dr Gryzenhout are increasingly well-placed to be the next generation of scientific leaders in the world.”

“It as a great privilege to receive the award, especially as second one in this year,” Dr Gryzenhout said. She established a research programme, Mycotoxigenic and Phytopathogenic Fungi, at the UFS. She is president of the African Mycological Association and general secretary of the International Society for Fungal Conservation. She is also a member of the Nomenclature Committee for Fungi – a permanent committee of the International Botanical Congress.

Prof Labuschagne received the African Union Kwame Nkrumah award for life and earth sciences in 2011, and the National Agriculturalist of the Year Award and the National Science and Technology Forum (NSTF) Award for research-capacity development over the last five to ten years, both in 2008.

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