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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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An out-of-this-world experience
2015-12-14

Film premiere hosts Professor Matie Hoffman, manager of the Naval Hill Planetarium and the planetarium’s operations manager, Tina Mangope.

The Naval Hill Planetarium in Bloemfontein premiered two new short astronomy films on 4 December 2015, with marvellous cosmic visuals explaining how the earth and all the planetary formations in our galaxy and the universe were created.

The two films, aptly titled ‘Cosmic Collisions’ and ‘Journey to the Stars’, were both made to enhance people’s knowledge about the universe and the vast dynamics within it. They were donated to the Bloemfontein-based planetarium by the American Museum of Natural History in collaboration with several other US space science intuitions, including the National Aeronautics and Space Administration (NASA).

“These two fantastic state-of-the-art films are scientifically accurate and very expansive,” said Professor Matie Hoffman of the Department of Physics and Astronomy at the University of the Free State. Hoffman is also the planetarium’s manager.

Nestled in the bushy landscape of historic Naval Hill - also home to the iconic statue of Nelson Mandela and the Franklin Game Reserve - the Naval Hill Planetarium was opened in 2013. It is the first digital planetarium in Sub-Saharan Africa, and is situated at the old Lamont-Hussey Observatory Building, which was closed in 1972.



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