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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

NASA Deep Space Navigation engineer presents at Naval Hill Planetarium
2017-03-30

Description: NASA Deep Space Navigation engineer  Tags: NASA Deep Space Navigation engineer

From the left: Chris du Plessis; US Consulate, Johannesburg,
Prof Petrus Meintjes; Dept of Physics UFS, Christopher Jacobs;
NASA, and Anthony Deaton; US Consulate Johannesburg.
Photo: Rulanzen Martin

The University of the Free State (UFS) hosted NASA Deep Space engineer Christopher Jacobs on 27 March 2017 at the Bloemfontein Campus. The engagement was hosted by Prof Matie Hoffman of the Department of Physics and the Department of Institutional Advancement, in collaboration with the US Consulate General in Johannesburg.

Jacobs is stationed at NASA’s Jet Propulsion Laboratory (JPL) at the California Institute of Technology and has served as the Reference Frame Calibration task manager for 25 years. In this role he has been responsible for delivering the reference frames used to navigate NASA missions such as the Mars Science Laboratory to planetary targets.

His visit to the UFS included a presentation to the Department of Astrophysics at the Faculty of Natural and Agricultural Sciences and at the Naval Hill Planetarium in Bloemfontein where he spoke on Stellar GPS: Navigating the Solar System. He also spoke about the latest research and developments at NASA in Astrometry. The visit will establish and develop shared interests and possible collaboration with UFS and other institutions of interest in the country. “South Africa, because of its well-placed geographic location in the southern hemisphere, holds a lot of answers to astronomy,” Jacobs said.

He has an active interest in professional and public education, and outreach, having given public lectures around the world. “Astronomy brings people together and is a point of common interest that is key in solving environmental and geographical challenges such as climate change, therefore global cooperation is important,” he said.

Prof Hoffman welcomed the initiative by the US Consulate and the possible outcomes of joint efforts to position the UFS as a key partner in South Africa on NASA’s astronomy projects. In the coming weeks Jacobs will speak at high schools in Gauteng including the Mae Jemison US Science Reading Room in Mamelodi, Pretoria, a centre that is focused on promoting science education.

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