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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

Four Kovsies play in the Chile/Belgium series
2015-02-10

Nicole Walraven, Lethabo Maebana (SRC: Media and Marketing), Tanya Britz, Kerry-beth Berry (SRC: Day- and Commuting Students), Cornelle Botha, Liné Malan, and Dominique De Gouveia (SRC: Sport)

Tanya Britz, Nicole Walraven, Cormelle Botha, and Liné Malan turned out for the Protea hockey team in the two series against Chile and Belgium in Cape Town from 22 January to 2 February.

Britz has been playing for the senior Protea team since her matric year at Sentraal High School, but for Walraven, Botha, and Malan this series marked their debut for the senior national hockey team. The series against Chile and Belgium both ended in draws for the Protea women’s team.

Shortly before the end of the series against Belgium, the three Kovsies making their debut for the senior national hockey team had the following to say to the Volksblad:

“It was unbelievably inspiring to stand next to these incredible players wearing the Green and Gold and to sing the national anthem in front of a home crowd. It was worth all the hard work and dedication. The support and acceptance of my team mates helped calm my nerves when the whistle blew. It was such an honour – it still feels like a dream. (Nicole Walraven)

“It is an indescribable feeling, something that I dreamt about for years. The nerves niggled before the game, but it was such a huge privilege and honour to play in the Protea colours.” (Cornelle Botha)

“It’s difficult to describe the feeling a person experiences when you sing the national anthem wearing the Green and Gold. It was a feeling of pride; the accompanying excitement felt as if I had a thousand butterflies in my stomach. It’s a moment I shall never forget and a dream come true.” (Liné Malan)

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