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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

Vermeulen’s work on display at Johannes Stegmann Art Gallery
2015-10-26

 

Dot Vermeulen, Anthropology (2014),
Oil on plywood, 300 x 200cm.
Photo: Supplied

“I am primarily fascinated in the travelling or movement of images in different spaces and media. By moving images from one medium into another, or posting and reposting them in different urban and virtual spaces, I ask questions about media presence and space.”

According to the late artist Dot Vermeulen, this is what the work for her Master’s degree was about. She was still completing it at the Department of Fine Arts at the University of the Free State (UFS).

Her work, called Posting Presence, is currently on display at the Johannes Stegmann Art Gallery on the Bloemfontein Campus. The exhibition is running from 1-30 October 2015.

Vermeulen was a junior lecturer at the Department of Fine Arts before she passed away in a car accident in April 2015.

According to Angela de Jesus, curator of the UFS Art Galery, the exhibition would have been part of Vermeulen’s final evaluation for her Master’s degree. She was one of South Africa’s most promising young artists, and won the prestigious Sasol New Signatures art competition in 2013.

In the work she had done in Posting Presence, Vermeulen said the spaces represented were derived from areas under bridges in an urban space where the visual messages left, speak of an accumulation of movement.

Exhibition event

An exhibition event was held on Friday 16 October 2015 at the Johannes Stegmann Art Gallery to celebrate Vermeulen’s work.

Janine Allen-Spies
and Prof Suzanne Human, the supervisors of her Master’s degree,spoke about the work to those attending.

Catalogue


De Jesus said a catalogue of Vermeulen’s research for Posting Presence had also been compiled, and would be available at the UFS Sasol Library in order for others to “use her work for further research”.

•    Vermeulen’s work can be seen from 08:30-16:30 daily until 30 October at the Johannes Stegmann Art Gallery on the Bloemfontein Campus.

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