Can South Africa’s Sugar Industry
Contribute to Clean Energy Supply?
Lessons from Best Practices in Cogeneration
Shingirirai S. Mutanga
1
Charles Mbohwa
2
The 2015 budget speech by the South African Minister of Finance echoed the need to resolve
the country’s energy challenge and revitalise agriculture as the top two strategic priorities for
economic growth and development. Eskom, South Africa’s public electricity utility, continues
to grapple with the challenge of meeting the rapidly growing demand of electricity. Repeated
bouts of load shedding have been a clear testimony to this challenge. There is a desperate
need to ensure the security and reliability of the country’s energy supply in order to deal with
the structural and competitive challenges which are retarding its growth. This brief argues
that the sugar industry can contribute significantly towards addressing South Africa’s energy
supply challenge in a sustainable way. This argument is based on the results of a spatial
systems dynamics model demonstration which simulates the overall electricity production from
sugarcane production systems. The results provide interesting insights that should certainly
drive and encourage more investment in bio-electricity generation, with projections of a
supply of over 1950 GWh of electricity per annum. Tapping from best practices in the field of
cogeneration, the sugar industry has the potential to help ensure sustainable energy security
for South Africa by supplying additional electricity to the national grid in a way that avoids
greenhouse gas emissions.
1 © Africa Institute of South Africa AISA POLICYbrief Number 119 – October 2015 1 1 1
1. Shingirirai S. Mutanga is a Research Specialist, Science & Technology, at the Africa Institute of South Africa in the Human Sciences Research Council.
2. Charles Mbohwa is Vice Dean and Professor, Postgraduate Studies, Research and Innovation at University of Johannesburg’s (UJ)
Faculty of Engineering and the Built Environment (FEBE)
AFRICA INSTITUTE OF SOUTH AFRICA BRIEFING NO 119 OCTOBER 2015
Introduction
Sugar cane, grown widely in African countries,
is known to be one of the most productive plants
in terms of its conversion of solar energy to
chemical potential energy. The sugar industry has