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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. 

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Students attend prestigious National Astrophysics and Space Science Programme
2014-08-22


From the left are: Thokozane Ngcongwane with Mbali Xaba and Thabo Kumalo (both third-year Physics and Chemistry students).

Three students from our Qwaqwa Campus – Thokozane Ngcongwane, Mbali Xaba and Thabo Kumalo – were recently selected to attend the prestigious National Astrophysics and Space Science Programme (NASSP). The programme – in partnership with the National Research Foundation (NRF) – ran for two weeks at the South African Astronomical Observatory (SAAO) in Cape Town.

The project targets students from formerly disadvantaged institutions of higher learning, where astronomy and astrophysics are not offered.

Students are invited to apply for the programme, with emphasis placed on students majoring in mathematics and physics. Students from other fields are also invited to apply, though. The programme allows for the development of black astronomers and astrophysicists, which are in demand in the ever-growing environment of astronomy in South Africa.

“Topics such as gravitational lenses, black holes, stellar evolution and the mysteries of cosmology were presented and students were invited to engage with the speakers during and after the presentations,” said Ngcongwane, a third-year Zoology and Entomology student.

The programme challenged them to work on basic astrophysical concepts in groups while individual written assignments were part of the learning process as well.

“Given the lack of information about the complexities of astronomy the students had, this was the most ideal time to learn about all matters astronomy and astrophysics as lectures offered a lot to young and excited minds,” Ngcongwane said.

 

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