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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

Anxiety about losing a loved one to death culminates in runner-up prize at Sasol New Signatures Art Competition
2014-09-15

 

Adelheid Camilla von Maltitz
Photo: Supplied

Adelheid Camilla von Maltitz – a lecturer at our Department of Fine Arts – has been awarded the runner-up prize at the Sasol New Signatures Art Competition. Her sculptural piece, ‘Bodies’, explores the process of mourning and loss and the grey areas between life and death.

The Sasol New Signatures Art Competition is recognised as the country’s longest running art competition. The competition has kick-started the careers of some of South Africa's most prominent artists. Last year, the competition was won by another Kovsie, Dot Vermeulen.

“Personally, I experienced an intense and consistent sense of anxiety towards death, specifically an anxiety towards losing a loved one due to a road accident. This led me to wonder how an individual copes with substantial loss. During my practical research it became obvious that there are many contrasts existing in the mourning process, contrasts related to anxiety and peace,” said Von Maltitz.

The piece encourages contemplation on three levels.

At the first level, two boxes lie on the floor covered in heaped earth and ash which suggests a buried body: closed, powerless and dark. Here, Von Maltitz invites the viewer to use this space to contemplate the process of mourning and loss.

The second level offers fragmented apparitions displayed in the light boxes, commenting on the ‘grey area’ between life and death.

At the third and final level, the viewer stands between the light boxes: open, alive and powerful.

Von Maltitz is currently reading for her PhD in Fine Arts at Kovsies. Commenting on her research, Von Maltitz said that she is “also interested in comparing the use of repetitive actions – such as revisiting a grave, which seem present in the mourning process – to the use of repetition in sculptural installation.” She is also interested in the relationship between these repetitions and anxiety and relieving anxiety, either permanently or temporarily.


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