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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

A tale of many cities – new dictionary of place names reveals our heritage
2015-01-28

 

‘The Dictionary of Southern African Place Names’ provides not only the answers, but also gives insight into how our places and our people were shaped. Penned by three academics from the University of the Free State (UFS), it is the fourth edition of this fascinating book.

Prof Peter Raper from the UFS Unit for Language Facilitation and Empowerment, together with his colleagues Prof Theodorus du Plessis and Dr Lucie Möller, created more than a reference book. They provide the reader with deeper understanding of events, our heroes, beliefs, values, fears and aspirations.

Jonathan Ball Publishers describes the book as “the most comprehensive glossary of Southern African towns, villages, railway stations, mountains, rivers and beaches. The 9 000 short entries incorporate data from sources dating as far back as 1486, encapsulating the linguistic and cultural heritage of all the peoples of the subcontinent, past and present.”

And what would the origin of the name Bloemfontein be?

This dictionary provides the following answer.

“Capital city of the Free State and judicial capital of South Africa. It was established in 1846 by Major HD Warden at a fountain on the farm Bloemfontein, originally owned by a Griqua, Mauritz Pretorius. It has been claimed to have been named after a person with the surname Bloem, or in honour of the Khoikhoi chief Jan Bloem, or after an ox with this name. Probably, however, it was named after flowers growing at the fountain, from Dutch bloem, ‘flower’, fonteijn, ‘spring’. The name is thought to be a translation from a Bushman name of which Mangaung is the Sotho adaptation; ma- is the Sotho plural prefix or class marker; the component ngau is comparable to the Bushman word //au, ‘flower’, and the final ng is cognate with the locative demonstrative ?, ‘that (one) there’. Bloemfontein attained municipal status in 1880.”




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