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06 June 2019 | Story Valentino Ndaba | Photo Rian Horn
Solar Panels at UFS Qwaqwa Campus
Revolutionising electricity with sun power: Solar panels at the Qwaqwa Campus.

Over the past few years the University of the Free State (UFS) has been planting panels, now the time has come to reap. Solar farms produced a return on investment in the form of R1.4 million in savings as a result of photovoltaics (PV) between January and March 2019. Nicolaas Esterhuysen, an electrical engineer at the Department of University Estates also reported a 2.34% decline in electricity usage between 2013 and 2018. 

Solar panels are the future 

According to Esterhuysen, the solution to a power crisis lies in “either becoming more energy efficient or generating our own at a cheaper cost”. All campuses have managed to save a total of R5.4 million in 2018 through producing our own power (solar PV) and actively managing the instantaneous load demand with building management system (BMS) software.

Overall, ground-mounted PV installations at all campuses contribute 2609 kilowattpeak (kWp) under standard conditions. The Bloemfontein Campus accounts for 979kWp of that amount while the South Campus generates 762kWp, with the Qwaqwa Campus producing 748kWp, and the Paradys experimental farm bringing in 120kWp to the grand total (to be commissioned June 2019).

Rooftop PVs generate electricity through the 80kWp Muller Potgieter Building, the 255kWp Bloemfontein Campus computer lab, the 35kWp Qwaqwa Campus computer lab, 135kWp Qwaqwa Campus Mandela Hall, and 416kWp Thakaneng Bridge panels. This is a total of 921kWp. 

Winter is coming with tariff terrors 

A 15.63% electricity tariff increase is projected this year in light of the annual winter adjustments commissioned by Eskom and Centlec. To gear up for the associated spike in power use over this season, University Estates advises the Kovsie community to use energy efficiently. “Think twice before switching on the heating and make sure to switch it off when you leave the office,” advises Esterhuysen.

In addition to generating electricity, saving initiatives such as implementing light-emitting diode (LED) lighting with motion sensors and actively managing demand at peak times have been implemented.

What’s next?

The next step is to rethink dated mechanical installations that are used to heat some of our older buildings. Replacing similar installations across all of the campuses are some of the ways the university intends to escalate energy efficient in future. 

News Archive

Vice-Chancellor’s Prestige Scholars Programme provides platform for next generation scholars
2015-12-08

Dr Rudo Ngara

“The PSP provides a platform for growth, where scholars get to interact with seniors and peers, giving much needed guidance as to where you are and what the next level of your work should be.” This is how Dr Rudo Ngara —a scholar of the Vice-Chancellor’s Prestige Scholars Programme (PSP)—describes the initiative.

For young scholars, such as Dr Ngara, it can be difficult to generate sustainable funding externally for their research. These researchers are not yet established in networks and collaborations independent of their doctoral supervisors, which makes procuring funding even more challenging. This is where the PSP makes an invaluable contribution.

Through the support of PSP, Dr Ngara was recently awarded a substantial NRF (National Research Fund) grant. Dr Ngara is currently a lecturer in the University of the Free State (UFS) Faculty of Natural and Agricultural Sciences on the Qwaqwa Campus. Her research is especially topical as it investigates how crops—particularly cereals—respond and adapt to a range of abiotic stress factors. These factors include drought, high salinity, and extremely high temperatures. Dr Ngara seeks to develop resilient crops that are better suited to produce under harsh environmental conditions. This research endeavour would have been far more complicated if not for the PSP.

Although the programme is not a funding agency, it does have an excellent record of support towards generating funding from outside sources such as Fulbright, the Commonwealth and, of course, the South African NRF.

 

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