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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

Nigeria’s Boko Haram: Why negotiations are not an option
2014-10-23



There has been much speculation if the recently announced ceasefire in Nigeria as well as talks with Boko Haram will indeed secure the release of about 200 girls kidnapped by this religious militant group.

Talks already started between the government and Boko Haram but there are still doubts if the girls will be freed and if the Nigerian government can successfully negotiate with Boko Haram. Prof Hussein Solomon, Senior Professor at the University of the Free State, regards this current negotiations as a terrible idea.

“At a time when Boko Haram’s strength is escalating, the correlatory weakness of the Nigerian government is increasingly exposed. As Nigerians prepare for the next presidential elections, embattled President Goodluck Jonathan is increasingly desperate to negotiate with Boko Haram to secure the release of schoolgirls seized by the terrorists earlier this year and to negotiate a ceasefire. This is a terrible idea. It makes a mockery of the rule of law and of the thousands of innocent victims of the militant violence. More importantly, it will only serve to fuel the terrorists’ ambitions further as the powerlessness of the government is exposed.”

Prof Solomon says religious intolerance is on the rise on the African continent, with a concomitant rise in terrorist incidents. In Algeria, extremist terrorism carries the name of Jund al Khilafah or Caliphate Soldiers in Algeria. In Mali it is Ansar Dine or Defenders of the Faith. In Somalia it is Al Shabaab (The Youth). But none of these organisations come close to the carnage wrought by Nigeria’s Boko Haram (literally meaning Western education is forbidden).

Boko Haram has carried out more than 1 000 attacks since 2010, which has resulted in the deaths of 10 000 people and a further 6 million affected by this terrorist violence. The 300 000 Nigerian refugees who have fled this tsunami of terrorism and have sought refuge in neighbouring Cameroon, Chad and Niger, provide adequate testimony to the human costs of such terrorism. Boko Haram, meanwhile, has formed tactical alliances with Al Qaeda in the Islamic Maghreb, Al Shabaab and the Islamic State in Iraq and Syria (ISIS), which means that the groups are sharing intelligence, tactics and material support. This cooperation has also resulted in increasingly sophisticated terror attacks mounted by Boko Haram.

Read more about Prof Solomon and his research.


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