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14 February 2023 | Story Prof Sethulego Matebesi | Photo Sonia Small
Prof Sethulego Matebesi
Prof Sethulego Matebesi is an Associate Professor and Head of the Department of Sociology at the University of the Free State (UFS).

Opinion article by Prof Sethulego Matebesi, Associate Professor and Head of the Department of Sociology, University of the Free State.
A maxim says it is not enough to know that people have made mistakes; we need to understand why they made the mistakes if we hope to prevent them or others from making the same mistakes.

While South Africans are still trying to make sense of the many lofty promises made about measures to deal with the catastrophic energy crisis over the past four years, unsurprisingly, the restoration of energy security also dominated the 2023 State of the Nation Address (SONA).

Still, the reasons behind the failure of past intervention measures and progress with restructuring the state’s energy utility, Eskom, remain a mystery.

There is enough cause for concern over Eskom’s stance that an ageing fleet of coal-fired power stations that consistently break down is one of the reasons for load shedding. What happened to planning? No wonder the need to achieve quick success in resolving the energy crisis has placed a premium on maintaining citizens’ trust. As a result, the government proposed new initiatives to address the insecurity of the electricity supply by declaring a state of emergency to avert a complete blackout and appointing a new Minister of Electricity within the presidency to lead the government’s short-term energy crisis response. 

President Cyril Ramaphosa has already indicated that the criticism of the Minister of Electricity’s position is misguided. In other words, from the government’s perspective, the impact of its decisions does not matter. To South African citizens, however, it matters a great deal as they have borne the burden of load shedding and the rising cost of living. Above all, those who can cushion the blow of the energy crisis will want to see that the maximum value for public money is achieved.

The energy crisis has been the subject of fierce arguments over the past few years. So too, have deliberations on the government’s capability to deal with the crisis. And although the precise impact of the state of disaster, which began with immediate effect after its announcement in the SONA, cannot be determined at this stage, it is not premature to believe that the energy crisis will become a high-stake bidding game during the 2024 general elections. 

From the responses of the African National Congress (ANC) parliamentarians and alliance partners, one gets the sense that they sincerely wish there could have been a less dramatic option for the electricity minister, who has been touted to serve merely as a project manager.

Disastrous decisions are a recipe for catastrophic events

There has never been a time in South African history since 1994 that our presidents have not faced one scandal or another. After having temporarily thwarted the Phala Phala saga and emerging victorious as leader of the ANC at the 55th National Conference in December 2022, one would assume that President Ramaphosa would have assimilated the lessons from past events.

The post-SONA 2023 political landscape points to a challenging year for Ramaphosa. It is a truism that an organisation’s culture is determined by its leader. And since politics is not an exercise in objectivity, it is for this reason that several expected decisions by President Ramaphosa will determine how he will navigate between being regarded as a heroic figure and a victim of political persecution.

Objectively, it is hard not to agree with critics that a state of emergency will open the floodgates of collusion and corruption, which are distinct problems within South African public procurement. At this point, one wonders if this is not yet another gimmick to extend the patronage network of the presidency.

Another major decision facing President Ramaphosa is the much-anticipated cabinet reshuffle. Deputy President David Mabuza’s announcement that he resigned, only to be asked by the presidency to hang on, provides fascinating insight into how difficult it can become to exercise what some may regard as the mundane task of replacing cabinet ministers. And looking at the organisational footprint of the ANC, I reckon President Ramaphosa will avoid a situation where a cabinet reshuffle becomes another political hot potato from within his own organisation.

There is a fierce power war waging within the ANC. As a result, time will tell whether the president will be brave enough to replace poor-performing ministers instead of using proxies such as the new Minister of Energy. 

And to be clear – why we fail to confront underperforming ministers and public servants is a vexing question.

Indications are that there seems to be no aversion to brevity when it comes to political expediency, but to live up to the responsibility of accelerating structural reforms that significantly impact the country’s growth trajectory positively and reduce policy uncertainty. Continuing to routinely neglect these obligations is bound to create a more extensive trust gap between the government and citizens.

News Archive

Researcher part of project aimed at producing third-generation biofuels from microalgae in Germany
2016-05-09

Description: Novagreen bioreactor  Tags: Novagreen bioreactor

Some of the researchers and technicians among the tubes of the Novagreen bioreactor (Prof Grobbelaar on left)

A researcher from the University of the Free State (UFS), Prof Johan Grobbelaar, was invited to join a group of scientists recently at the Institute for Bio- and Geo-Sciences of the Research Centre Jülich, in Germany, where microalgae are used for lipid (oil) production, and then converted to kerosene for the aviation industry.

The project is probably the first of its kind to address bio-fuel production from microalgae on such a large scale.  

“The potential of algae as a fuel source is undisputed, because it was these photoautotrophic micro-organisms that were fixing sunlight energy into lipids for millions of years, generating the petroleum reserves that modern human civilisation uses today.  However, these reserves are finite, so the challenge is marrying biology with technology to produce economically-competitive fuels without harming the environment and compromising our food security.  The fundamental ability that microalgae have to produce energy-rich biomass from CO2, nutrients, and sunlight through photosynthesis for biofuels, is commonly referred to as the Third-Generation Biofuels (3G),” said Prof Grobbelaar.

The key compounds used for bio-diesel and kerosene production are the lipids and, more particularly, the triacylglyserols commonly referred to as TAGs.  These lipids, once extracted, need to be trans-esterified for biodiesel, while a further “cracking” step is required to produce kerosene.  Microalgae can store energy as lipids and/or carbohydrates. However, for biofuels, microalgae with high TAG contents are required.  A number of such algae have been isolated, and lipid contents of up to 60% have been achieved.

According to Prof Grobbelaar, the challenge is large-scale, high-volume production, since it is easy to manipulate growth conditions in the laboratory for experimental purposes.  

The AUFWIND project (AUFWIND, a German term for up-current, or new impetus) in Germany consists of three different commercially-available photobioreactor types, which are being compared for lipid production.

Description: Lipid rich chlorella Tags: Lipid rich chlorella

Manipulated Chlorella with high lipid contents (yellow) in the Novagreen bioreactor

The photobioreactors each occupies 500 m2 of land surface area, are situated next to one another, and can be monitored continuously.  The three systems are from Novagreen, IGV, and Phytolutions.  The Novagreen photobioreactor is housed in a glass house, and consist of interconnected vertical plastic tubes roughly 150 mm in diameter. The Phytolutions system is outdoors, and consists of curtains of vertical plastic tubes with a diameter of about 90 mm.  The most ambitious photobioreactor is from IGV, and consists of horizontally-layered nets housed in a plastic growth hall, where the algae are sprayed over the nets, and allowed to grow while dripping from one net to the next.

Prof Grobbelaar’s main task was to manipulate growth conditions in such a way that the microalgae converted their stored energy into lipids, and to establish protocols to run the various photobioreactors. This was accomplished in just over two months of intensive experimentation, and included modifications to the designs of the photobioreactors, the microalgal strain selection, and the replacement of the nutrient broth with a so-called balanced one.

Prof Grobbelaar has no illusions regarding the economic feasibility of the project.  However, with continued research, optimisation, and utilisation of waste resources, it is highly likely that the first long-haul flights using microalgal-derived kerosene will be possible in the not-too-distant future.

Prof Grobbelaar from the Department of Plant Sciences, although partly retired, still serves on the editorial boards of several journals. He is also involved with the examining of PhDs, many of them from abroad.  In addition, he assisted the Technology Innovation Agency of South Africa in the formulation of an algae-biotechnology and training centre.  “The chances are good that such a centre will be established in Upington, in the Northern Cape,” Prof Grobbelaar said.

 

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