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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

Protest actions on the Main Campus

2008-03-12

Staff and students are kindly requested to take note of the following protest actions that will take place on the Main Campus.

As a result of a dispute over the status of roads on campus, permission was granted by the municipality and the court, in the presence of the university lawyer for the three actions. Strict conditions have been set for these protest actions.

a.) On Wednesday, 12 March 2008, Satawu and Nehawu will picket in front of the Main Building from 09:00 to 12:00. Three hundred persons will possibly attend this event. Marchers are not allowed within 10 meters from the Main Building and there will be 45 marshals present. This is not a march and no memorandum will be handed over. There may be no speeches.

b.) On Thursday, 13 March Nehawu will again picket in front of the Main Building from 13:00 to 14:00. This event must be peaceful. Only 125 Nehawu members may participate and protesters may not break away from the big group. They may not come within 10 meters of the Main Building. Twenty five of the protesters will be marshals. This is not a march and no memorandum will be handed over. No speeches may be made.

c.) On Friday, 14 March a march of Cosatu and Nehawu will take place. This march will probably be joined by a big number of people.

The march will continue through the Nelson Mandela Gate and will enter the campus grounds, but will be limited to the incoming lane of Chancellors Avenue from the Main Gate to the crossing with Alumni Avenue (in front of the Odeion). Speeches will be made and a memorandum will be handed over.

The march will reach the campus at 10:00 and from then the Nelson Mandela Gate will be closed for all traffic. The march must be finished by 14:00. The marchers will return to the city centre and could cause a traffic problem in Nelson Mandela Avenue.

The South African Police Service and the UFS’s Protection Service will monitor all these actions. Staff are kindly requested to use alternative gates to the Nelson Mandela entrance on Friday. Academic activities continue as normal.

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