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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

SA women’s Hockey players give a recount of Hockey World League
2015-07-02

Nicole Walraven and Liné Malan
Photo: Hatsu Mphatsoe

Three of the star players of Kovsies Hockey formed part of the South African Women’s Hockey team, which competed at the Hockey World League (HWL) tournament in Spain.

Hatsu Mphatsoe, student assistant at the Department of Communication and Brand Management, spoke to Nicole Walraven and Liné Malan. Tanya Britz will be returning only at a later stage to South Africa.

As key players in the Kovsies women’s team, Malan and Walraven (along with Britz) have a new wealth of knowledge that could assist the team in their forthcoming USSA tournament. Here are some of the sentiments they had to share:

What was your reaction when you first received the news that you’d be representing the country in Spain?

Liné: “It was a shock to me, I honestly didn’t expect it. At the same time, I was extremely excited to be granted the opportunity to represent my country, and prove my worth to the team.”

Nicole: “I was so excited and felt honoured! To represent my country at such a big tournament is amazing. I was very nervous, but excited.”

How has playing at an international level improved your personal performance and mentality of the game/sport?

Nicole: “Playing at such a high level has helped my hockey immensely. It has helped me read the game better, it has upped my self-confidence, and it has also improved my ability to deal with pressure.”

Liné: “Playing at an international level looks much easier than it is. It is a much faster game, the pressure on the ball is much higher, and the individual skills are on a different level. It has helped me to lift my game, and make decisions much quicker. It has honestly benefitted me as an individual, and I’ve learnt so much from the experience.”

Now that you’ll be going to play at the USSA tournament, what new perspectives do you wish to bring to the team in order to improve its overall performance there?

Nicole: “The importance of teamwork as well as adapting the game plan according to the situation and the opposition. Constant hard work and a never-give-up attitude are vital. One quote that stood out from the tournament is ‘1MT, 1MT’ which stands for ‘1 More Thing, 1 More Time’.

Liné: “Going to USSA, I now have a better understanding of what pressure is, and how to make better decisions. We will still make use of our Kovsies brand of Hockey, which is our passing game, and apply all aspects to the best of our ability.”

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