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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

Deaf Awareness Month empowers the hearing impaired
2015-09-21

There are more sign languages in the world than spoken languages. About 600 000 deaf South Africans have the South African Sign Language (SASL) as their first language. There are about 40 schools for the deaf in South Africa. 90% of all deaf children are born to hearing parents. Only about 30% of speech is visible on the lips.

How many of these fundamental facts did you know?

Deaf Awareness Month serves to educate hearing communities about issues that the deaf population face on a daily basis, as well as to honour the history and culture of people who are deaf or hard-of-hearing. For the past 70 years, the University of the Free State (UFS) has dedicated September to hosting events around the topic of hearing impairment.

The theme of ‘With South African Sign Language rights, our children can!’

This year’s theme had learners from Bartimea School for the Deaf and Blind, hearing impaired UFS students, and Prof Jonathan Jansen engaged in a conversation around empowerment at a picnic held on Monday 7 September 2015 at the Red Square on the Bloemfontein Campus.

Through a sign language interpreter, Matshela, a grade 12 learner, explained that he felt empowered by the efforts the university has made to embrace and empower individuals with disabilities. He then revealed his intentions of pursuing Information Technology or Social Work studies at Kovsies.

Clifford Machete, a first-year Administration student at the university, stated how sign language interpreters gave him an ‘I can’ attitude when he first arrived at university.  “As a deaf person, I see that I am able to learn with the help of sign language interpreters. There is accessibility at the university, and I am so proud to be a student here and part of Deaf Awareness Month.”

Susan Lombaard, Lecturer and Acting Chairperson at the Department of South African Sign Language, believes that Deaf Awareness Month is about promoting human dignity.

“We want to show the world that deaf people can do everything, and that their language is as strong and important as any spoken language.”

For more information regarding Deaf Awareness Month activities, contact the South African Sign Language Department on 051 401 2251.

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