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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

Ranks of NRF researchers at Qwaqwa Campus strengthened
2014-11-03



From the left are: Profs Birhanu Dejene, Oriel Thekisoe, Drs Aliza le Roux and Geofrey Mukwada. (Prof Riaan Luyt was absent due to being abroad.)
Photo: Thabo Kessah
The list of researchers at the UFS Qwaqwa Campus rated by the National Research Foundation (NRF) was strengthened with the addition of Dr Geofrey Mukwada, who will have recognition as established researcher (C) from 2015.

Mukwada is working in the Department of Geography. His research focus is rural livelihoods, sustainable rural livelihoods, conservation of natural resources and climate change.

A total of 119 UFS researchers currently have evaluation and rating status from the NRF, says Nico Benson, Deputy Director: Research Development. Currently (October 2014) 29 researchers are still waiting for response from the NRF regarding applications submitted. A total of 16 ratings are already known. Ratings are valid for a period of six years and researchers are invited to apply for re-evaluation in the fifth year.

On the Qwaqwa Campus, Profs Riaan Luyt and Birhanu Dejene enjoy status as established (C) researchers – Prof Luyt in polymer nano-composites and polymer compounds and Prof Dejene in solar energy (photovoltaic).

Dr Aliza le Roux and Prof Oriel Thekiso are recognised as promising young (Y) researchers. Dr le Roux’s research focus is behavioural ecology, predator-prey interaction, spatial cognition, cognitive ecology, communication, zoology, individual-based modelling, animal behaviour (primates, carnivore biology) and socio-biology (mammals).  

Prof Thekisoe is conducting research on applied molecular diagnostics, ectoparasites, blood parasites, helminthology, molecular parasitology, entomology and parasitology, veterinary parasitology, parasitological techniques, host-parasite interaction and zoonosis.

These researchers are proud export products of the University of the Free State.


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