being stored and result in additional handling costs. During the year under review, in excess of 90% of all
energy consumed by Illovo’s operations was sourced from renewable resources, replacing fossil fuel
alternatives.
Total Energy Consumption by category: GJ
2014/15
2013 /14
2012 /13
Non-renewable energy used during the year
3 467 287
3 619 147
4 287 423
Renewable energy used during the year
32 302 982
34 381 016
36 689 874
Imported electricity was overstated at Nchalo (Malawi) in 2013/14 and has since been adjusted from 149 GWh to
67.9 GWh.
Consumption of energy types across Illovo operations: %*
Bagasse
Coal
Electricity Synthesis
Gas
Biomass and
Wood
Other Fuels
2014/15
84.5
4.3
2.6
1.7
5.7
1.2
2013/14
84.4
4.5
2.4
1.5
5.9
1.2*
2012/13
84.3
4.5
2.9
0.2
5.2
2.9
* Synthesis gas use replaced imported steam.
Direct Energy consumption by primary energy source: GJ
Energy Source - GJ
2014/15
GJ/ton
sugar
2014/15
2013/14
GJ/ton
sugar
2013/14
2012/13
GJ per
ton sugar
2012/13
Synthesis Gas
591 909
0.34
577 590
0.32
101 028
0.06
Diesel
336 051
0.19
355 504
0.19
543 871
0.31
Petrol
55 961
0.03
52 529
0.03
97 511
0.06
Coal
1 534 803
0.87
1 708 424
0.93
1 850 142
1.06
Heavy Fuel Oil
11 236
0.01
9 647
0.01
12 766
0.01
Liquid Petroleum Gas
38
0.00
200
0.00
6 306
0.00
Renewable - Bagasse
30 227 273
17.18
32 086 838
17.53 34 526 604
19.77
Renewable - Biomass
388 010
0.22
404 241
0.22
498 526
0.29
Renewable – Wood
1 653 221
0.94
1 855 437
1.01
1 630 245
0.93
Indirect energy in the form of electricity is produced outside of Illovo’s operations and is consumed for
Illovo’s interim electricity needs (ie, during periods when bagasse is not burned to generate electricity).
Total indirect energy consumption by primary source in gigajoules (GJ)
Energy
Source - GJ
2014/15 GJ/ ton sugar
2014/15
2013/14
GJ/ton sugar
2013/14
2012/13
GJ/ton sugar
2012/13
Imported
Electricity
936 674
0.58
911 415*
0.50 1 180 436
0.68
Imported
Steam
-
-
493 487**
0.28
* Imported electricity was overstated at Nchalo Malawi in 2013/14 Integrated Annual Report and has since been
adjusted from 149 GWh to 67.9 GWh as a result of a data capturing error.
** Synthesis gas replaces imported steam in 2012/13 and no imported steam was consumed from 2013/14
onwards.
Investing in renewable energy
Various by-products of the sugar manufacturing process present the industry with the opportunity of
generating the bulk of its energy requirements. A world-wide trend has seen sugar mills reaching a point
where they have generated surplus green energy to be exported, creating significant ecological and
economic benefits.
