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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

Many changes for Shimlas, says new captain
2016-01-25

 Description: 2016 Shimla Neil Claassen Tags: 2016 Shimla Neil Claassen
The versatile forward, Neil Claassen, will lead the Shimlas onto the field in the 2016 Varsity Cup. Photo: Johan Roux.

The University of the Free State (UFS) has a new group of rugby players, a new head coach, and a new captain.

This is how the Shimla skipper, Neil Claassen, summed up his team's approach to the 2016 Varsity Cup.

Although the UFS will start the tournament as defending champions, the 23-year-old Claassen believes that much has changed since 2015.

One of which is his appointment. The flanker, who can play lock as well, was recently appointed as Varsity Cup captain in his third series.

The former Springbok flanker, Hendro Scholtz, took over as head coach from Franco Smith, who is now the Cheetahs trainer. Mac Masina, former centre for the Lions, is a new assistant coach.

New year with more pressure

Because of all the changes, Claassen feels that the Shimlas will need a different approach to the 2016 tournament.

“There will definitely be more attention on us (as champions). However, the guys in the camp see it as a new year,” he said.

“There is pressure, but we don't focus on that too much.”

Previous leaders set example

According to Claassen, he has never before led a team for which he played.

“I didn't expect to be captain,” the former pupil of Paarl Gymnasium said.

“This is something new. I have played with good leaders like AJ (Coertzen) and Oupa (Mohoje) before, and will take forward what I have learned from them.”

He also believes that there are several senior players, such as the vice-captain, Pieter-Steyn de Wet, who will assist him in his leadership role.

Back from injury

Claassen has played Currie Cup, Vodacom Cup, U21 and U19 rugby for the Free State.

However, a knee injury kept him out of action for nine months and he missed the last three Varsity Cup matches of 2015.

He returned for a training match against the University of Johannesburg in Kroonstad on 23 January 2016. The Shimlas also played a warm-up match against the University of KwaZulu-Natal in Bethlehem on 16 January 2016.

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