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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

Kovsie Dux student seeks to help farmers through her research

2017-10-24

Chéri-Lynn Steyn, the Kovsie Dux student for 2016/2017,
likes going on game drives in the Kruger National Park
and taking photographs of birds with her brothers.
Photo: Jóhann Thormählen

From failing her first test at university to becoming the Kovsie Dux; from being a first-year in a tutor class to becoming a tutor these are snippets from Chéri-Lynn Steyn’s journey at the University of the Free State (UFS).

Although she was not accepted into Medical School to pursue her childhood dream of studying Medicine, she has never looked back and now wants to guide farmers on how to be more efficient and sustainable.

Steyn, who studies BScAgric Animal Science and Agricultural Economics, was crowned the Kovsie Dux Student for 2016/2017. The award recognises and rewards the top-performing and all-round brilliant student. The criteria are a high academic average, coupled with excellent participation and excellence in extra-curricular activities like Community Service, Culture, Leadership and Sports.

Overcoming obstacles a highlight
The Research Assistant at Agricultural Economics says she cannot believe she is the winner. After three years at university, her CV includes 29 modules and 29 distinctions, but she is a well-balanced individual. She has been on the Agricultural Committee, First-Years Committee at Wag-'n-Bietjie residence, a class representative, is an interprovincial hockey umpire, and has cycled the Cape Town Cycle Tour and Telkom 94.7 Cycle Challenge.

Steyn recently looked back at her UFS journey: “From a layman who knew nothing about the agricultural industry, to someone who is able to understand and join in conversations about the industry,” she says. “My personal highlights are those small significant moments of overcoming obstacles.”

Effort less when you love what you do
She says her success is through grace and the Lord’s strength. “I endeavour to never compare myself to others, but set the standard against myself. This enables me to push myself harder and further than I did previously.”

Steyn also feels that when you love what you do, putting in a lot of effort is no effort at all. “My big dream is to be able to help farmers on a large scale through the research I do.”

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