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Weathering the winter with energy efficiency

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

Six Kovsies included in Mail & Guardian’s top 200

2017-07-28

The Protea Karla Mostert, who is busy with her master’s degree
in Dietetics at the UFS, experienced a wonderful year
on the netball court. Photo: Johan Roux

Being on the Mail & Guardian 200 Young South Africans list for 2017, gives her a platform to share with South Africa what she does. This is according to Candice Thikeson. “I want to inspire people to follow their passion and pursue their dreams, and Mail & Guardian 200 Young South Africans allows me to do so.”

The art historian, who is included in the Arts & Entertainment category, is one of six current and former students of the University of the Free State (UFS) featured in the prestigious list. The others are Zola Valashiya (Civil Society), Lerato Machetela (Education), Thapelo Mokoatsi (Film and Media), Karla Mostert (Sport), and Nokuthula Sithole (Politics & Government).

Every year, the Mail & Guardian honours exceptional young citizens under the age of 35 who has made an impact in their respective fields. A special event for this year’s chosen ones was hosted at Emperors Palace in Johannesburg on 29 June 2017.

Making a statement for art historians
Thikeson, a Mandela Rhodes Scholar, Bright Young Mind, and recipient of the Abe Bailey Travel Bursary, says she feels honoured. “To me, this means that the impact I am making in the arts is being felt. There are very few art historians in South Africa, and because of this, people don’t often know what this profession entails.”

Inspiring people from all walks of life
She says the reaction from friends, family, colleagues, and acquaintances have been overwhelming. “The most heart-warming thing for me has been having men tell me that I inspire them. As women, we are often told that we are inspirations for little girls, but women can and do inspire, challenge, and motivate men too.”
She was appointed as a junior lecturer in the Department of Art History at the UFS in January. This, and being a Mandela Rhodes Scholar, is some of her career highlights. She is also enrolled for a research master’s degree in Art History and Image Studies.

UFS students on the Mail & Guardian 200 Young South Africans list:
• Zola Valashiya (Civil Society) – Co-founder and director, Debate Afrika
• Lerato Machetela (Education) – Psychologist
• Thapelo Mokoatsi (Film and Media) – Historian and academic
• Karla Mostert (Sport) – Netball player
• Nokuthula Sithole (Politics & Government) – Activist
• Candice Thikeson (Arts & Entertainment) – Art historian

View the Mail & Guardian 200 Young South Africans here.

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