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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

Boyden observatory celebrates its achievements
2004-10-05

The red carpet will be rolled out and champagne glasses filled tonight when the Boyden Observatory outside Bloemfontein will launch the first phase of the new science centre.

This phase, which was completed earlier this year, consists of a new auditorium, reception area and paths which connect educational visiting points on the Boyden terrain.

“Over the past two years the Boyden Observatory has been re-sited as a research, educational and public facility. The new facilities are now being utilised for educational and public programmes. The 1,5m Boyden telescope has also recently been upgraded and is used for research purposes,” says Dr Matie Hoffman from the University of the Free State’s (UFS) Department of Physics, who is responsible for the management of the centre.

“The Boyden Observatory is a unique facility of the UFS - we are one of the few universities in the world who has its own observatory,” says Dr Hoffman.

“The main purpose of the science centre is to create enthusiasm for science amongst the public. The centre also has a great educational function and focuses specifically on the improvement of the quality of science education in the Free State,” says Dr Hoffman.

Fund-raising for the planned second phase of the science centre, which will consist of interactive in- and outside exhibition areas, will also start tonight. “After the completion of the second phase the Boyden Observatory will probably become the most accessible and public-friendly observatory in the country and a great asset for the Free State Province,” says Dr Hoffman.

A small robotic telescope, which will be controlled from the University College Dublin in Ireland, will also be installed at the Boyden Observatory this year.

“Just as this year is a significant one for the UFS with its centenary celebrations, so it is also a significant one for the Boyden Observatory. The Harvard University in the United States of America started with the construction of the original 1,5 m telescope in its original form 100 years ago, the telescope was put in place at Boyden 70 years ago and Mr Uriah Boyden – the person who donated the money with which the Boyden Observatory was constructed, was born 200 years ago,” says Dr Hoffman.

The first phase of the science centre was built with funds sponsored by the AngloGold Fund, the Shuttleworth Foundation, the Charl van der Merwe Trust and the Lila Theron Trust. Donations from the Friends of Boyden Observatory and other individuals also contributed to the success of the project.

Those who are interested in educational tours of the science centre can contact Dr Hoffman at (051) 401-2322.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
5 October 2004

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