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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

Otorhinolaryngology research hopes to decrease morbidity
2016-10-04

Description: Prof Riaz Seedat Tags: Prof Riaz Seedat

Prof Riaz Seedat, Head of the
Department of
Otorhinolaryngology at the UFS

Prof Riaz Seedat, Head of the Department of Otorhinolaryngology at the UFS is a world-renowned ear, nose and throat specialist and researcher. He is also a National Research Foundation C3 rated scientist.

He is conducting his research in ear, nose and throat (ENT) pathology in a developing world setting, particularly focusing on recurrent respiratory papillomatosis and other ENT conditions. “This condition is caused by human papillomavirus (HPV), infective conditions as well as allergic rhinitis,” said Prof Seedat.

Current research is aimed at further describing the epidemiology of recurrent respiratory papillomatosis, identification of the HPV variants responsible for causing the condition and markers of disease aggressiveness.

The research has led to various international partnerships such as the multicentre collaborative studies, “Genetic Susceptibility to Papilloma-induced Voice Disturbance” at the Centre for Genomic Sciences at the Allegheny-Singer Research Institute in Pittsburgh, United States, and the HPV6/11 Global Diversity Consortium at the University of Ljubljana in Slovenia.

Although most head and neck squamous cell carcinomas are caused by excessive tobacco and alcohol use, there is an increasing body of evidence to show that HPV causes a subset of head and neck squamous cell carcinomas. However, there are few studies on the role of HPV in head and neck neoplasms in developing countries.

“Through the research we have shown that recurrent respiratory papillomatosis, caused by HPV, is not as rare in South Africa as it is in developed countries and that patients usually present respiratory papillomatosis at an advanced stage when the condition is life-threatening,” said Prof Seedat.

“It is hoped that this research will help us to address the morbidity caused by ENT conditions common in developing countries,” said Prof Seedat.

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