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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

Amphitheatre to energise student life on the Qwaqwa Campus
2015-06-11

The Qwaqwa Campus of the University of the Free State is one of the fastest-growing rural campuses.

Since 2010, the campus has, among other things, built two new student residences, which provide accommodation for an additional 500 students. The old disused boiler room, which was used as a storeroom, has been converted into much-needed ablution and dressing room facilities at the sports fields.  The Faculty of Education now boasts a Technology, Engineering Graphics and Design Education laboratory. The project was funded by the Department of Higher Education and Training.

One of the student priorities is a common space in the form of an open amphitheatre in front of the library.

‘’The amphitheatre is a highly-welcomed structure on our campus as it will provide students with an informal environment to study, socialise and meet,’’ said the Campus Principal, Prof Prakash Naidoo.

‘‘We have erected this on an existing space that was already used for outdoor launches and events on the campus, and is in line with our thinking of energising student life on campus. In addition, we have complemented this with the use of solar energy, so that students can just plug in and charge their phones and laptops while they are in the amphitheatre.”

Excited students, Chibi Mosia and Tshilidzi Matshavha, in final-year Chemistry and Chemistry Honours respectively, concurred that the amphitheatre is a good project for the campus.

‘‘It is an important and distinctive feature for the campus as it adds to the growth of our beautiful campus,’’ said Mosia.

‘’It will also enhance the use of alternative energy sources to reduce the campus's carbon footprint,’’ added Matshavha.

The project is worth almost R2,5 m, and took 12 months to complete. The Department of Higher Education and Training also provided the funds for this project.

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