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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

UFS Prestige Scholar shares her vision on crystallography with worldwide audience
2014-04-24

 
Dr Alice Brink
Dr Alice Brink, a Prestige Scholar and lecturer in the Department of Chemistry at the University of the Free State, was selected by UNESCO to participate, together with some 15 other young scientists from all over the world, in a round-table discussion at the Opening Ceremony of the International Year of Crystallography.

During this event, that took place in Paris, France, Dr Brink could, on stage, share her vision as one of the next generation of scientists.

“The 15 crystallographers consisted of eight young, established scientists and seven ‘young-young’ scientists who are starting their careers. We participated in a group discussion in order for the crystallographic community to better understand the challenges faced by young scientists across the globe.

“It was a great privilege to be invited to be part of this talented and diverse discussion group and to hear the challenges that are faced by young scientists from different parts of the world. It is also comforting to hear that scientific difficulties that are found in South Africa are commonly experienced in both First and Third World countries,” said Dr Brink.

“Crystallography has directly influenced the development of numerous scientific fields such as chemistry, physics, mathematics, medicine, engineering and material sciences. More inter-departmental collaboration would benefit greatly from crystallography, as this multi-faceted science provides foundation principles for applied research,” she said.

The United Nations declared 2014 as the International Year of Crystallography, and it was officially opened at the UNESCO Headquarters in Paris by the Secretary-General of the UN, Ban Ki-moon.

The ceremony was video-streamed live to more than 500 destinations all over the world.

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