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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.

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SARChI Chair on disease resistance and quality in field crops awarded in UFS Department of Plant Science
2016-02-01

Description: SARChI Chair  Tags: SARChI Chair

Prof Labuschagne

A South African Research Chairs Initiative (SARChI) chair has been awarded in the Department of Plant Sciences at the University of the Free State (UFS). The chair will be headed by Prof Maryke Labuschagne, and will focus on crop quality breeding and disease resistance in field crops.

The disease resistance research by the chair will be headed by Prof Zakkie Pretorius. The disease resistance breeding will be a continuation of the internationally-acclaimed wheat rust research that Prof Pretorius has been conducting during his career.

The quality breeding will focus on crop protein quantity and quality as well as on iron, zinc, and beta carotene biofortification of staple crops such as wheat, maize, and cassava.

Prof Labuschagne believes that food security is one of the key factors for stability and prosperity on the continent. Her research and that of her students focuses on the genetic improvement of food security crops in Africa, including such staples as maize and cassava. “These crops are genetically improved for yield, drought tolerance, disease, and insect resistance, as well nutritional value,” she said.

Last year, one of  Prof Labuschagne’s PhD students, Bright Peprah, received an award for $473 000 from the competitive Program for Emerging Agricultural Research Leaders (PEARL) of the Bill and Melinda Gates Foundation for his project on improving the beta-carotene content in cassava.

Prof Labuschagne also received the prestigious ‘Continental Lifetime Achiever Award’ from Africa’s Most Influential Women in Business and Government Programme (MIW) last year for her commitment and continuous contributions to food security. She is an NRF-rated researcher, and author or co-author of over 160 articles in accredited journals.

Research Chairs have been designed by the Department of Science and Technology, together with the National Research Foundation, to attract and retain excellence in research and innovation at South African public universities. 

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