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18 August 2023 | Story Lunga Luthuli | Photo Francois van Vuuren
Bloemfontein Campus Solar Farm
The solar plant on the UFS’s Bloemfontein Campus, part of the university’s commitment to combatting loadshedding and embracing sustainable energy.

The University of the Free State (UFS) has installed solar plants across its three campuses.

The university says this is in response to the call for urgent solutions to loadshedding and the promotion of environmentally sustainable, cleaner, and renewable energy solutions.

Nicolaas Esterhuysen, Director of Engineering Services at UFS University Estates, said,

“The PV (photovoltaic) systems are grid-tied without storage to ensure maximum benefits and faster payback periods.”

Esterhuysen said the UFS has saved up to R32,5 million since the first solar plant was commissioned in 2017 to help the UFS reduce the impact of loadshedding and its carbon footprint and energy costs. “This will substantially increase this year with the commissioning of two large new ground-mounted solar plants on the Bloemfontein Campus,” he said.

“The microgrid installation on Qwaqwa Campus is one of the biggest solar diesel hybrid systems installed in South Africa. It allows us to keep the campus running despite excessive power interruptions.”

The UFS is currently embarking on research as part of the Grid-related Research Group (GRRP) under the Interdisciplinary Centre for Digital Futures (ICDF) to also help staff and students with understanding renewable energy and sustainability.

Esterhuysen said the plants are further evidence of the UFS’s commitment to renewable and energy saving solutions. “It is our flagship project, but our focus is also on energy saving initiatives – to ensure we are becoming more energy efficient and eliminate energy wastage. We have plans for expansion on all campuses. Some of the highlights are an off-grid solution for the new student centre at Qwaqwa Campus and to make South Campus a self-sustaining campus.”

The installed grid-tied system solar plants are operating without batteries on all three campuses, giving the university an optimal configuration between capital cost and payback period.


The energy generated at the solar plants:

Bloemfontein Campus – 3688 kWp

Qwaqwa Campus – 918 kWp

South Campus – 759 kWp

Paradys – 125 kWp

News Archive

Four modernised controlled environment cabinets inaugurated
2006-07-27

Photographed in a controlled environment cabinet were at the back from the left:  Mr Adriaan Hugo (head of the UFS Electronics and Mechanisation Division), Prof Herman van Schalkwyk (Dean: Faculty of Natural and Agricultural Sciences at the UFS) and Prof Koos Terblans (lecturer at the UFS Department of Physics).  In front is Mr Koos Uys (engineering consultant from Experto Designa who helped with the cooling systems of the cabinets).
Photo: Leonie Bolleurs

Different look for research in controlled circumstances at the UFS  

Research in controlled circumstances at the University of the Free State (UFS) turned a new page today with the inauguration of four modernised controlled environment cabinets of the Department of Soil, Crop and Climate Sciences.

“The controlled environment cabinets, which are situated next to the glass houses on the eastern side of the Agriculture Building on the Main Campus in Bloemfontein, were installed in the early 1980’s.  The cabinets, used for research purposes in controlled circumstances by the UFS for many years, became dysfunctional and needed to be repaired and put into use again,” said Prof Herman van Schalkwyk, Dean: Faculty of Natural and Agricultural Sciences at the UFS.

“The cabinets are used by the agronomics, horticulture and soil science divisions of the Department of Soil, Crop and Climate Sciences to control factors such as the temperature, the intensity and quality of light, synthesis and humidity.  This is done 24 hours a day, with hourly intervals,” said Prof Van Schalkwyk.

The cabinets are ideally suited to determine the joint and separate effects of these factors on the growth of plants.  The adaptability of plants to climate can also be investigated under controlled circumstances.  All of this leads to a better understanding of the growth and development process of plants, more specifically that of agricultural crops. 

“The effect of these environmental factors on the effectiveness of insect killers such as fungus killers, insecticide and weed killers can also be investigated and can help to explain the damage that is sometimes experienced, or even prevent the damage if the research is timeously,” said Prof Van Schalkwyk.

A new cabinet can cost between R2-3 million, depending on the degree of sophistication.  “Although controlled environment cabinets have been used for agricultural research for a long time, it has become costly to maintain them     and even more impossible to purchase new ones,” said Prof Van Schalkwyk.

According to Prof Van Schalkwyk the cabinets were re-built by die UFS Electronics and Mechanisation Division.  Some of the mechanisms were also replaced and computerised.   

“The re-building and mechanisation of the cabinets were funded by the faculty and because the work was done by our own staff, an amount of about R1 million was saved.  The maintenance costs will now be lower as the cabinets are specifically tailor made for our research needs,” said Prof Van Schalkwyk.

Where all monitoring was done manually in the past, the cabinets can now be controlled with a computer.  This programme was designed by Prof Koos Terblans from the UFS Department of Physics. 

According to Prof Van Schalkwyk the modernisation of the cabinets is part of the faculty’s larger strategy to get its instruments and apparatus up to world standards.  “With this project we have proved that we can find a solution for a problem ourselves and that there are ways to get old apparatus functional again,” said Prof Van Schalkwyk.

Media release
Issued by: Lacea Loader
Media Representative
Tel:   (051) 401-2584
Cell:  083 645 2454
E-mail:  loaderl.stg@mail.uovs.ac.za
26 July 2006

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