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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

First residence for UFS South Campus

2016-09-01

The residence has 146 double rooms with 17 kitchens
overall, each corridor has one kitchen. The residence
also has a gazellie and a conference room that
can accommodate 50 people.
Photo: Charl Devenish

The South Campus of the University of the Free State in Bloemfontein now has its own student residence. Completed in June 2016, the new residence can accommodate 250 undergraduate and 20 postgraduate students.

The residence has 270 beds, with 20 single-bedroom flats and 12 additional single rooms in the corridors. Each of these single-bedroom flats has a kitchen, lounge, and a bathroom. There are 146 double rooms with 17 kitchens overall, each corridor has one kitchen. The residence also has a gazellie, a conference room that can accommodate 50 people, as well as eight laundry rooms with a drying area.

“Students at the South Campus have, up until now, been commuting from the Bloemfontein Campus and residential areas around town. We are extremely proud that accommodation will now be available to our students on the campus. Although the official opening of the residence is said to take place early in 2017, some students have already moved in,” says Prof Daniella Coetzee, Principal of the South Campus.

The residence was built at a cost of R57 million, which was funded by the UFS and the Department of Higher Education and Training.

Residence accessible to differently-abled people
The UFS strives to cater for differently-abled people by making all its buildings accessible to them. This residence is no exception, as it has two rooms available on the ground floor of Block C for differently-abled students. These rooms accommodate two students per room.

A one-of-a-kind newly installed water system
The residence is also the first at the university that has a grey-water system installed. Grey water is made up of bath, shower, and bathroom sink water. The water will then be reused for toilet flushing as well as for irrigation purposes on the campus.

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