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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

Is Al-Qaeda operating in South Africa?
2014-09-29

 
Our Department of Political Studies and Governance recently hosted a seminar with investigative journalist De Wet Potgieter – author of the book, ‘Black Widow White Widow’.During the seminar, Potgieter reflected on the research he has conducted for the book, revealing the unsettling presence of Al-Qaeda in South Africa.

The ‘White Widow’ in the book’s title refers to Samantha Lewthwaite, a British woman who was found in South Africa with a fraudulent passport. She was later linked to the Westgate shopping mall attack which took place in Nairobi, Kenya on 21 September 2013. In this mass shooting at least 67 people died and over 175 people were wounded. The Islamist group al-Shabaab – which is also linked to Al-Qaeda – claimed responsibility for the incident.

In contrast, the ‘Black Widow’ is the disclosed identity of an Afrikaans-speaking self-styled spy, who after being widowed became a counter-terrorist operative.

Potgieter’s book divulges details of Al-Qaeda paramilitary and urban warfare training on a secluded farm in the Little Karoo and reveals details of the support they receive from various local extremist groups. Potgieter’s investigation spans across two years and suggests possible future attacks from, or on, South African soil.

“South Africa plays a role in the bigger picture for Al-Qaeda Islamic terrorism,” Potgieter said. “For instance, the Navy Seal team who killed Bin Laden found reports pointing to active Al-Qaeda/Islamist presence in South Africa. South Africans need to know we are under siege by a small, well-trained Al Qaeda terrorist cell. Yet, operations – of which I know, but cannot disclose much – are also underway to contain these matters,” Potgieter added.

Potgieter’s sources suggest that Al-Qaeda has been active in South Africa since the 2010 FIFA World Cup already. The South African government seems to turn a blind eye, though, despite CIA and MI6 requests and enquiries on the matter.


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