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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

NSH breaking the cycle of poverty
2015-09-28

In was a joyous occasion for the Hlomuka family when their last-born walked across the stage to receive her degree. Spontaneous ululating sounded from the crowd as Nozipo Hlomuka knelt before the Chancellor of the University of the Free State (UFS), Dr Khotso Mokhele, who conferred her degree.

“At that moment, I thought ‘this is really and finally happening’,” says the young teacher from Qwaqwa, who received a B Ed degree at the spring graduation.

At that moment time stood still for Nozipo, who once believed that, because of financial difficulties, this day would never come.

Across our three campuses, there are many students in similar positions to Nozipo. As many as 60% of students on our campuses are food-insecure, and suffer from hunger. The No Student Hungry Bursary Programme as established in 2011 to provide food-insecure students with a modest food bursary.

In 2014, just when Nozipo thought she could no longer continue studying, she became the recipient of an NSH-bursary.

Although receiving a degree is a huge achievement for Nozipo, her parents, too, were overcome with emotion, to see the first of their five daughters reach this academic milestone. Having only finished grade 8, Mrs Notula Hlomuka, Nozipo’s mother, says it was important for her to see her children finish school, at least. Mrs Hlomuka sold fruit and vegetables which provided the family’s only income.

“It was not always easy. It was never easy. Sometimes, there was no money and not enough to eat, and your children must go to school hungry. We could not afford new clothes for all the children, and the school uniforms were handed down to the younger sibling ending with Nozipo. Those were difficult days. It’s over now. God provided.”


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