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14 March 2023 | Story Prof Frikkie Maré | Photo Supplied
Prof Frikkie Mare
Prof Frikkie Maré is the Academic Departmental Head: Agricultural Economics, University of the Free State

Opinion article by Prof Frikkie Maré, Department of Agricultural Economics, University of the Free State.
President Cyril Ramaphosa recently announced a state of disaster due to the electricity crisis and the appointment of the new Minister of Electricity in the Presidency, Dr Kgosientsho Ramokgopa. Although there are many arguments for and against the state of disaster and the position of a Minister of Electricity, I think all South Africans agree that drastic measures must be taken to improve the current situation. However, I do not think the state of disaster, or the Minister of Electricity will bring any quick fixes to the table, and therefore we have to assume the crisis will remain in the short to medium term.

The Cause of the Crisis

As South Africans, our biggest crisis at this stage is load shedding. We are confronted with darkness daily, or even twice or thrice a day. Although the impact of load shedding varies according to the time of day it is implemented, it generally hinders us from doing our work, preparing food, and relaxing in front of the television after work. It directly impacts the quality of life of those who need electricity for oxygen machines for them to breathe. It causes damage to our electrical appliances, especially due to power surges when the electricity is turned back on. In short, load shedding is disrupting our lives. It is a nuisance we do not need, and the sooner it ends, the better.

Load shedding may be be a crisis for us as citizens, but it is Eskom’s solution to keep the national grid from collapsing. Thus, the real cause of the crisis is not load shedding but the inability of Eskom to supply enough electricity to meet the demand. The second big concern is the rising cost of electricity in South Africa. From 2007 to 2022, electricity prices increased by 653% in an attempt by Eskom to increase revenue to try and catch up with its heavy debt burden while simultaneously trying to maintain the current power stations and add some new generation capacity.

The problem

South Africa, up until load shedding started in 2007, was always praised as one of the countries in the world with the most stable electricity supply, and electricity was priced among the lowest in the world. Our economy thus developed around the national grid and is heavily reliant on it. Given the above, our food system faces three problems. First and most visible is load shedding that is causing interrupted national power supply and increasing production and processing costs as fuel generators and solar power must be relied on. Secondly, the cost of food production, processing, and distribution increases sharply as national electricity prices increase. Third, new investments in the food chain are discouraged as it is heavily reliant on electricity, which there is not enough of.

The impact

Over the last number of months, the media was full of the impact of load shedding on the food system in South Africa. Visually it ranged from photos and videos of withered irrigated crops which failed as there were not enough hours of electricity to supply water. There were pictures of chicken farms full of dead broilers that died when the heating and ventilation systems could not function during load shedding. Many articles also warned that load shedding would hurt food security in South Africa as it would not be possible to produce or process enough food.

These reported impacts of load shedding on food security caused quite a frenzy among consumers as people tend to run with what is announced in headlines without reading or understanding the context. Consumers immediately fear a situation where there will be insufficient food in South Africa as the headlines read that food security is under pressure.  

Yes, although all the photos, videos and articles in the news might be true and certainly do impact food security, we must also remember that food security is a combination of the availability and affordability of food.  

The impact of load shedding on food production depends on the type of production system. While load shedding has a minimal impact on extensive red meat production, it can be detrimental to intensive systems like poultry production, especially if electrical heating is used to regulate the temperature. It also negatively affects producers relying on irrigation to water their crops as the quality and quantity of the crop will be influenced.

The effect of load shedding can be severe on certain primary producers and even cause farming operations to close. Still, it will not necessarily result in a food shortage in the country as our primary agricultural sector is diverse. However, the price of certain commodities will increase due to a lower supply and higher production costs, negatively influencing food affordability.

The larger problem with load shedding can be found in terms of processing the food, especially fresh produce reliant on a sustained cold chain. For food safety and quality reasons, fresh produce must be kept at constant temperatures, and processors and distributors thus have no choice but to use expensive private electricity generation, further pushing up the cost of food.

Another problem is that, for example, the cold rooms of processors are connected to generators, as power failures might happen even when load shedding is not a problem. Still, the processing line cannot operate without grid-supplied electricity. Although there is thus enough food in the country on a commodity level, these commodities cannot be processed into final food products as fast as in the past. This bottle-neck effect further reduces the supply of food products and increases their price.

We often forget about the impact of load shedding on the consumers’ food choices. If you need electricity to prepare food, the availability of electricity at the time you need to prepare it will affect what you eat. The problem is that more affordable foods usually take longer to prepare, while the quick-to-prepare, ready-to-eat fast foods are expensive. The higher demand for these more expensive products due to load shedding puts further upward pressure on the price of food.

So where are the monsters?

The electricity crisis impacts all roleplayers in the food value chain, from primary producers to final consumers. Although load shedding is the most visible monster here, the fast-increasing price of electricity and the general electricity shortage that discourages future investment are also lurking in the dark and contributing to problems in the overall food system. In my opinion, the electricity crisis currently does not yet threaten food security in terms of availability. Still, it is creating a monster in terms of food prices (inflation) and thus making food less affordable.  

Although private solar power and fuel generators do assist in alleviating some of the influences of the electricity crises, it is not the solution. The problem with solar power, for users requiring large amounts of electricity, is that it is too expensive to install storage capacity (batteries) to use during the night. You also have a problem when it is overcast and rainy, so solar is a mere addition to supplement the national grid during the day. On the other hand, fuel generators can supply electricity 24 hours a day. Still, only the fuel cost to generate 1kW is double what Eskom charges, making it too expensive in the long run.

In my view, the only option to ensure the sustainability of the food value chain in future is to get the national electricity grid functional again. There are many short-term solutions, but none is currently sustainable enough to provide affordable energy needs. Although it will certainly take time to get Eskom fully functional again, I do not think we will run out of food in South Africa. However, we must tighten our belts to be able to afford food while the monsters lurk in the dark.


For more information contact Frikkie Maré at MareFA@ufs.ac.za

News Archive

#Women'sMonth: Save the children
2017-08-10

Description: Trudi O'Neill Tags: : rotaviruses, young children, Dr Trudi O’Neill, Department of Microbial, Biochemical and Food Biotechnology, vaccine 

Dr Trudi O’Neill, Senior lecturer in the Department of
Microbial, Biochemical and Food Biotechnology.
Photo: Anja Aucamp

Dr Trudi O’Neill, Senior lecturer in the Department of Microbial, Biochemical and Food Biotechnology, is conducting research on rotavirus vaccines.

Dr O’Neill was inspired to conduct research on this issue through her fascination with the virus. “The biology of rotaviruses, especially the genome structure and the virus’ interaction with the host, is fascinating.”

“In fact, it is estimated that, globally, ALL children will be infected with rotavirus before the age of five, irrespective of their socio-economic standing. However, infants and young children in poor countries are more vulnerable due to inadequate healthcare. The WHO estimates that approximately 215 000 deaths occur each year. This roughly equates to eight Airbus A380 planes, the largest commercial carrier with a capacity of approximately 500 seats, filled with only children under the age of five, crashing each week of every year.”

Alternative to expensive medicines 
“Currently, there are two vaccines that have been licensed for global use. However, these vaccines are expensive and poor countries, where the need is the greatest, are struggling to introduce them sustainably. It is therefore appealing to study rotaviruses, as it is scientifically challenging, but could at the same time have an impact on child health,” Dr O’Neill said.

The main focus of Dr O’Neill’s research is to develop a more affordable vaccine that can promote child vaccination in countries/areas that cannot afford the current vaccines.

All about a different approach 

When asked about the most profound finding of her research, Dr O’Neill responded: “It is not so much a finding, but rather the approach. My rotavirus research group is making use of yeast as vehicle to produce a sub-unit vaccine. These microbes are attractive, as they are relatively easy to manipulate and cheap to cultivate. Downstream production costs can therefore be reduced. The system we use was developed by my colleagues, Profs Koos Albertyn and Martie Smit, and allows for the potential use of any yeast. This enables us to screen a vast number of yeasts in order to identify the best yeast producer.”

Vaccination recently acquired a bad name in the media for its adverse side effects. As researcher, Dr O’Neill has this to say: “Vaccines save lives. By vaccinating your child, you don’t just protect your own child from a potentially deadly infection, but also other children in your community that might be too young to be vaccinated or have pre-existing health problems that prevents vaccination.” 

A future without rotavirus vaccination?

Dr O’Neill believes a future without rotavirus vaccination will be a major step backwards, as the impact of rotavirus vaccines has been profound. “Studies in Mexico and Malawi actually show a reduction in deaths. A colleague in Mozambique has commented on the empty hospital beds that amazed both clinicians and scientists only one year after the introduction of the vaccine in that country. Although many parents, mostly in developed countries, don’t have to fear dehydrating diarrhoea and potential hospitalisation of their babies due to rotavirus infection anymore, such an infection could still be a death sentence in countries that have not been able to introduce the vaccine in their national vaccination programmes,” she said. 

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