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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

UFS takes further steps to address load shedding
2015-02-24

The South African economy is experiencing its worst electricity crisis since 2008, with state power firm Eskom implementing load shedding as it struggles to meet growing demand for power.

The University of the Free State (UFS) has been planning and implementing projects to reduce the impact of load shedding since 2008. This was done primarily to ensure that the academic programme does not suffer as a result of the increasing cuts in power supply, which continued this year.

The university’s main concern is the supply of emergency power to lecture halls and laboratories.

Up to date, 35 generators are serving 55 buildings on the three campuses of the UFS. This includes 26 generators on the Bloemfontein Campus, eight on the Qwaqwa Campus in the Eastern Free State and one generator on the South Campus in Bloemfontein. The generators are serviced regularly and kept in a working condition.

Since 2010, the university has also ensured that all new academic buildings being built were equipped with emergency power.

On the South Campus in Bloemfontein the new lecture hall building and the Computer Laboratory are equipped with emergency power, while the installation of emergency power generators in other buildings is underway. Most of the buildings on the Qwaqwa Campus in the Eastern Free State are provided with emergency power.

“To expand on the work that have already been done, the main objective in the installation of more generators on the Bloemfontein Campus will be to ensure that lecture halls with emergency power are available on the centrally booked timetables and that more of the critical laboratories are equipped with emergency power,” said Mr Nico Janse van Rensburg, Senior Director: University Estates.

“There are still some critical buildings and venues on the Bloemfontein Campus that must be equipped with emergency power. However, this is a costly process and will have to be phased in over a period of time. The further implementation of emergency power is dependent on delivery times of equipment. The university is also looking into alternative power supply solutions, such as solar power,” he said.

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