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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

We show our colours in support of autism awareness
2012-04-11

The Main Building on our Bloemfontein Campus will be illuminated in blue till the end of April to show support for autism awareness.
Photo: René-Jean van der Berg
12 April 2012

The Main Building on our Bloemfontein Campus will be illuminated in blue till the end of April to show our support for autism awareness, together with the rest of the world.

April is Autism Awareness Month and various iconic landmarks worldwide will be lit up in blue to honour those with autism.

Autism is one of only three conditions that are commemorated by the World Health Organisation.

Autism is a neurological condition that can be diagnosed in children as young as three years old. Worldwide one out of every 100 children is diagnosed within the autistic spectrum. This means that in South Africa a child is born with autism every hour and in the Free State some 400 children per year are born with the condition.

“Despite the high prevalence of autism in South Africa, South Africans know very little about it,” says Dr. David Griessel, an autism expert of the UFS’s Department of Paediatrics and Child Health. “Stories and films that attempt to portray autistic characters often create the wrong impression among the public concerning this complex illness. This distorts the reality since every child with autism is unique,” says Dr. Griessel.

He says it is important that all children with signs of autism are referred for evaluation as early intervention can prevent autism from further disrupting normal development.

Therapists and teachers who specialise in autism-specific treatment play an important role in this regard.

“However, there are no well-established services for toddlers in the Free State. Fortunately, there are classes developing in schools such as Lettie Fouché, Willem Postma and Pholoho, as well as in Kroonstad and Welkom. The Free State Autism Association has established a private school that offers a service to seven learners.”

For more information on autism in children or for information on special projects in the Free State, contact Dr. Griessel at +27(0)51 405 53177 or +27(0)51 405 3181.

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