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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

Prof Luyt says young researchers should not allow circumstances to determine their future
2016-02-01

Description: Prof Riaan Luyt Tags: Prof Riaan Luyt

Prof Riaan Luyt, an NRF B-rated researcher
Photo: Supplied

Young researchers, who spend their life at a disadvantaged and rural campus like the University of the Free State’s Qwaqwa Campus, should not be deterred from achieving their dreams.

This is the view of Prof Riaan Luyt, former Assistant Dean in the Faculty of Natural and Agricultural Sciences, who achieved his B-rating by the National Research Foundation (NRF) late in 2015. This was by far the highest-ever rating on the Qwaqwa Campus.

“When I moved to the Qwaqwa Campus many years ago, having had the opportunity to do a post-doctoral fellowship in Polymer Science at the Leeds University in the United Kingdom, I was determined to get the Department of Chemistry off the ground, and to embark on serious research,” said Prof Luyt, who is now the Affiliated Professor in the Department of Chemistry and Research Associate Professor at the Centre for Advanced Materials, based at Qatar University.

“It was through sheer determination that I managed to obtain enough funds to equip a decent research laboratory. There were many obstacles over the years, but I managed to attract more and more postgraduate students and published more,” he said.

At first, Prof Luyt was not successful with his NRF-rating applications.

“My first couple of attempts to get rated produced no success. I was then awarded a C3-rating, which was later followed by C2 and then C1,” he added. “Getting a B-rating is the highlight of my research career. It shows that it can be done. Young researchers should not allow their past or present circumstances, or their work environment to stand on their way,” said Prof Luyt, who has supervised 38 master’s and doctoral students as well as 11 postdoctoral fellows. He has also published 185 papers in international and accredited journals.

Although abroad, Prof Luyt will continue to supervise eight postgraduate students at the Qwaqwa Campus.

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