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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

Yeast genus named after UFS scientist
2012-02-21

 
Prof. Lodewyk Kock

 

A yeast genus has been named Kockiozyma in honour of Prof. Lodewyk Kock of the Department of Microbial, Biochemical and Food Biotechnology at the University of the Free State for his contributions to yeast systematics.

A genus is a category of classification ranking below a family and above a species and generally consists of a group of species exhibiting similar characteristics.  
 
Prof. Kock says: “This event was a big surprise and honour which is usually only bestowed on scholars at the end of their career.” 
 
The manuscript proposing the new genus name, titled "Kockiozyma gen. nov., for Zygozyma suomiensis: thephylogeny of the Lipomycetaceous yeasts" was accepted for publication on 7 February 2012 by the ISI journal Annals of Microbiology.
 
This genus is a member of the family called the Lipomycetaceae which is regarded as a primitive group of yeasts. This family is usually studied for their evolutionary status and development.
 
The scholars that did the research and bestowed the honour are Dr S. Jindamorakot and Dr P. Yukphan from the National Science and Technology Development Agency (NSTDA) in Thailand. The senior author was Prof. Y. Yamada, Professor Emeritus at Shizuoka University at the town of Shizuoka in Japan.

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