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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

Louzanne Coetzee breaks 16-year-old world record

2016-03-24

Louzanne Coetzee (left) running the 5 000 m at the Nedbank National Championships at the Free State Athletics stadium with her guide, Khotatso Mokone (right)
Photo: Celeste Klopper Photography

Whether it’s the 5 000 m or the 1 500 m, Louzanne Coetzee is breaking records in all her races. Fans of the University of the Free State (UFS) student were elated at her triumph with the 5 000 m T11 world record at the Nedbank National Championships for the Physically Disabled on Wednesday 23 March 2016.

The record, which has stood for 16 years, was shattered by Coetzee’s stellar 19:17.06 performance. Sigita Markeviciene’s long-standing mark of 20:05.81, set at the 2000 Paralympics in Sydney, was bettered by 48.75 seconds when Coetzee and her guide, Khotatso Mokone, sprinted hand in hand past the finish line.

Coetzee’s coach is as elated as the world-class athlete’s fans over her officially becoming the first totally blind female to clock sub-20 minute in the 5 000 m. "I am proud and grateful. She earned it through and through. She worked hard for this,” said Rufus Botha.

The experience was a surreal one for Coetzee. “It was unreal but it is exciting to be the fastest in Africa and the world. I could not have done it without the support system that I have,” she said.

"I have seldom met a student with the character and humanity of Louzanne Coetzee; she represents the best of campus and country, and is a stunning example of what we canal achieve despite the great challenges of the present," said Prof Jonathan Jansen, Vice-Chancellor and Rector of the UFS.

New African record holder

Two days before breaking the 5 000 m world record, Coetzee set a new African record in the 1 500 m. She lowered the mark from 5:27:21 to 5:18:44, which placed her at the number nine spot in the world.

On Friday 18 March 2016 Coetzee had broken her own South African record when she ran 5 000 m in less than 20 minutes at the Free State Championships. However, the race is not an official (International Paralympic Committee) meeting, and hence remains unofficial.

What’s next?

The gold medallist is currently preparing for the Athletics Grand Prix to be held in Switzerland in May for which she is raising funds. If she is selected by SASCOC (South African Sports Confederation and Olympic Committee), her next stop is the Paralympic Games in Rio de Janeiro, which is just six months away.

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