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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

Young Communication student publishes second book

2014-09-03

Most people get to 90 and never publish a book. Some people at 19 have not even read a book.
But 19-year-old BA Communication student at Kovsies, Grace Nthebe, has already published two books, only in this year...

Grace writes poetry and her first book is called Reflections by Grace.

“It is a personal book and it was only by the grace of God that I could do this reflection,” says Grace.

“Reflections take a look at four aspects of myself:

- Me as a beginner in my life;
- Being a believer of love;
- Looking at critical conditions in life;
- And then finally, taking a look at myself as an African woman.”

Grace became fascinated with poetry in Grade 10. She developed as a poet more and more when she was in Grade 11 and started relying on her writing as a means to express the unexpressed.

“A friend of mine took a look at my writing and asked why I don’t have it published?”

“That was not easy, but I covered everything smoothly and took my time with it.”

More recently, Grace’s second book called Tribute to Love was also published.

“This is more of a motivational book,” she says.

“Young women often have to pretend to be ‘okay’ when going through tough times like a break-up. In Tribute to Love I go through ten basic steps to recover fully after a break-up.”

“A lot of times recovery starts with forgiveness and if you have social support, it eventually ends with learning to let go and being willing to love again. Relationships and break-ups are often phases every person goes through, but it is important to go through it in the right way…”

Grace’s books are self published by Quick Fox and available online at amazon.com

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