Carbon footprint

The term “carbon footprint” is defined as the total greenhouse gas emissions caused directly and indirectly by an individual, organisation, event or product, and is expressed as tonnes of carbon dioxide equivalent (“CO2e”). AECI’s carbon footprint was calculated using the Intergovernmental Panel on Climate Change Guidelines for National Greenhouse Gas Inventories and the Greenhouse Gas Protocol’s Corporate Accounting and Reporting Standards, as developed by the World Business Council for Sustainable Development.

In terms of organisational boundaries, the financial control approach was followed whereby all operations under the financial control of AECI were included in the carbon footprint boundary and 100% of emissions from their operations were accounted for. 

OPERATING AND ORGANISATIONAL BOUNDARIES USED TO CALCULATE AECI’S CARBON FOOTPRINT

Scope 1 direct emissions – emissions from the consumption of fuel in mobile equipment, emissions from the consumption of fuel in stationary equipment, emissions released from processes occurring at operations, refrigerant usage in air conditioners and refrigeration equipment.

Scope 2 indirect emissions – emissions which arise from the generation of purchased electricity and purchased steam consumed by the Group.

all significant AEL operations, together with the footprint associated with rock-on-ground contracts. AEL’s international operations were also included. Although South African emissions factors relating to electricity generation were used throughout, there was no material impact on the resultant figures; the impact of process emissions from nitric acid production at Modderfontein was calculated using a factor of 310 which is the global warming potential for nitrous oxide (N2O); emissions resulting from the burning of emulsion wastes have not been included due to reporting difficulties;

specialty chemicals operations – South African emission factors were used for all calculations except for the operations of SANS Technical Fibers (“ST”) in the USA, in which case the emissions factor for Duke Power Utility (STF’s electricity provider) was used due to its significant impact on the final result; and

Acacia Real Estate operations, which are all in South Africa.

The 15% decrease in total CO2e emissions was due predominantly to a significant reduction in Scope 1 emissions at AEL. Process-related CO2e emissions decreased by 26% year-on-year owing to lower nitrous oxide emissions from the No. 9 Nitric Acid Plant, at Modderfontein. This plant had significantly reduced on-line time.

AECI’s Scope 2 emissions were predominantly from electricity consumption. The Group consumed 207 888 MWh* of electricity (2014: 217 959 MWh*). This 4,6% decrease was the result of lower production at most operations. AECI’s total energy usage was 2 274 443 GJ* (2014: 2 446 673 GJ*).

TONNES OF CO2e: SCOPE 1   2011     2012     2013     2014     2015     2016
Explosives   201 499     188 610     226 946     308 080     229 272     (26)
Specialty chemicals   60 335     30 593     26 861     22 724     22 897     1
Property   68 075     62 685     76 015     45 422     44 203     (3)
Total   329 909 *   281 888 *   329 822 *   376 226 *   296 372 *   (21)

TONNES OF CO2e: SCOPE 2   2011     2012     2013     2014     2015     2016
Explosives   76 622     76 277     78 170     74 031     75 714     2
Specialty chemicals   162 632     141 225     124 009     150 721     136 860     (9)
Property   8 315     6 863     7 378     5 713     4 786     (16)
Total   247 569 *   224 365 *   209 557 *   230 465 *   217 360 *   (6)
Total (Scopes 1 and 2)   577 478 *   506 253 *   539 379 *   606 691 *   513 732 *   (15)

 

All rights Reserved.