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18 August 2023 | Story Lunga Luthuli | Photo Francois van Vuuren
Bloemfontein Campus Solar Farm
The solar plant on the UFS’s Bloemfontein Campus, part of the university’s commitment to combatting loadshedding and embracing sustainable energy.

The University of the Free State (UFS) has installed solar plants across its three campuses.

The university says this is in response to the call for urgent solutions to loadshedding and the promotion of environmentally sustainable, cleaner, and renewable energy solutions.

Nicolaas Esterhuysen, Director of Engineering Services at UFS University Estates, said,

“The PV (photovoltaic) systems are grid-tied without storage to ensure maximum benefits and faster payback periods.”

Esterhuysen said the UFS has saved up to R32,5 million since the first solar plant was commissioned in 2017 to help the UFS reduce the impact of loadshedding and its carbon footprint and energy costs. “This will substantially increase this year with the commissioning of two large new ground-mounted solar plants on the Bloemfontein Campus,” he said.

“The microgrid installation on Qwaqwa Campus is one of the biggest solar diesel hybrid systems installed in South Africa. It allows us to keep the campus running despite excessive power interruptions.”

The UFS is currently embarking on research as part of the Grid-related Research Group (GRRP) under the Interdisciplinary Centre for Digital Futures (ICDF) to also help staff and students with understanding renewable energy and sustainability.

Esterhuysen said the plants are further evidence of the UFS’s commitment to renewable and energy saving solutions. “It is our flagship project, but our focus is also on energy saving initiatives – to ensure we are becoming more energy efficient and eliminate energy wastage. We have plans for expansion on all campuses. Some of the highlights are an off-grid solution for the new student centre at Qwaqwa Campus and to make South Campus a self-sustaining campus.”

The installed grid-tied system solar plants are operating without batteries on all three campuses, giving the university an optimal configuration between capital cost and payback period.


The energy generated at the solar plants:

Bloemfontein Campus – 3688 kWp

Qwaqwa Campus – 918 kWp

South Campus – 759 kWp

Paradys – 125 kWp

News Archive

Power shortage: Measures to be implemented immediately
2008-01-31

1. In order to avoid the further implementation of power sharing, electricity companies countrywide are requiring, in addition to measures announced for domestic consumers, that major power consumers save a certain percentage of power.

2. Die UFS is one of the 100 largest clients of Centlec, the local electricity distribution company. During a meeting last Thursday evening with the 100 largest clients, it was indicated that the UFS had to deliver a saving of 10%. The details are as follows:

  • Provision is made to a certain extent for an increase in electricity consumption. The calculation is done as follows: maximum consumption for 2007+6%-10%.
  • This entails a saving during peak times, as well as a saving regarding the total number of units consumed.
  • The saving is calculated on a monthly basis.
  • Saving measures must be implemented immediately (from 7 March). If electricity-saving goals are not attained, power sharing will be resumed from 10 March.

3. The UFS has been controlling its peak demand by means of an energy control system for many years. The geysers of residences and certain central air-conditioning systems were linked to the control system in order to shift energy consumption to non-peak times.

4. In order to attain the goal of 10%, it is necessary to implement further energy control systems and additional measures – which requires time and money. Attention will have to be given, inter alia, to the following:

  • The 1000+ portable air-conditioning units on the campus (huge power guzzlers) must be connected to energy control appliances and systems.
  • All the filament bulbs must be replaced.

7. The UFS will be conducting high-level talks with Centlec later this week with a view to:

  • conveying the unique needs of the UFS in detail;
  • stating the impact of building and refurbishing projects that are currently in the implementation and planning phases;
  • requesting understanding for the fact that the UFS does not have the capacity to immediately deliver the 10% saving.
     

It is evident from discussions thus far that Centlec is sympathetic and wants to help, but also that immediate action and co-operation are expected from the UFS. During the meeting, the UFS must also report back on steps already taken (since 7 March) in this regard.

8. The installation of the emergency power units for the large lecture-hall complexes and a few other critical areas, which has already been approved, is continuing. About R3m is being spent on this. Additional emergency power needs reported to Physical Resources via line managers are currently being investigated with a view to obtaining a cost estimate and subsequently determining priorities in consultation with line managers.

It is recommended that:

a) All line managers, staff members and students be requested to give their full co-operation with regard to saving electricity in every possible way, and that current operational arrangements be amended if possible with a view to promoting power saving. 

Staff, students and other users of campus facilities be requested to see to it that lights and air conditioning (individual units) in unused areas are switched off.

b) The following measures drawn up in co-operation with electrical engineers come into effect immediately:

Arrangements to be made by Physical Resources staff:
(Additional capacity to be able to complete everything within a reasonable period of time will have to be found and funded. This aspect will be taken up with the line managers concerned):

  • The geysers of all office buildings will be switched off at the distribution board. Staff are requested to use a kettle for washing dishes, and are warned not to switch appliances on again themselves.
  • In all office buildings where 12V and 15W downlighters and uplighters remain switched on for decorative purposes and do not serve as primary illumination, the light switches will be disconnected.
  • Lighting in cloakrooms will be checked, and illumination levels will be reduced if possible.
  • All light armatures must be replaced by CFL types.
  • All lights on the grounds will be checked to ensure minimum power consumption.
  • The upper limit of all central cooling systems currently regulated via the energy control system must be set to 24 degrees.

Arrangements to be made by Kovsie Sport:

  • Sport activities requiring sports field illumination must be scheduled after 20:00 in the evening (the lights may not be on between 18:00 and 20:00.)
  • Sports field illumination must be managed so that such lights are not switched on unnecessarily.
     

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