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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

Shimlas shock Tuks by staying calm

2016-02-19

Prop Ox Nche was one of the substitutes who had a huge impact against Tuks in Pretoria on 15 February 2016. Nche and other Shimlas substitutes helped their team wipe out a massive deficit. Photo: Johan Roux.

He has never been involved in a match like this in his rugby career.
This is what Neil Claassen had to say about his team’s performance on 15 February 2016, when the Shimlas came up with one of the biggest fight-backs in the history of the Varsity Cup in Pretoria. According to the Shimlas Captain, his bench had a great impact, and this helped in shocking Tuks with 47-46 towards the end. This came after Tuks had been leading 43-15 in the 44th minute.

Great fighting spirit
The Shimlas' fighting spirit, and a new Varsity Cup points system in which converted tries may count up to 11 points, enabled them to wipe out this deficit.
“It was a tough match, especially after being so far behind,” Neil said.
“Coach (Hendro Scholtz) told us during half-time (when we were 15-36 behind) that we should stay calm."
“We weren't completely out of the game. We knew that if we eliminated unnecessary mistakes, we could make it.”

Impact from bench
This is the second consecutive match - the other was against Ikeys in Cape Town - where the Shimlas’ substitutes swayed the match. “The bench made a big difference,” Neil said. “We also scored an 11-point try, which helped a lot.”
The Shimlas’ fullback, Marco Mason, was named Player of the Match. He succeeded with a tricky conversion to gain victory for his team.

Injuries
The eighth man, Nardus Erasmus (knee) and flanker, Fiffy Rampeta (eye socket), sustained injuries, but should be able to play in the first home game against the Madibaz on 22 February 2016. The injured scrumhalf, Zee Mkhabela (concussion), could return for this match.
Shimlas are second on the log, with nine league points after two away matches. Maties has ten league points.

Young Guns get stuck
The University of the Free State (UFS') Young Guns got stuck 8-14 against Tuks in Pretoria on 15 February 2016.
Vishuis, the UFS's residence team, will start their onslaught in the residence league against Dagbreek in Stellenbosch on 22 February 2016.

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