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Sasol Climate Change Report 2022 - Book - Page 12


INTRODUCTION
RISKS AND OPPORTUNITIES
OUR FUTURE SASOL STRATEGY
GOVERNANCE
DATA AND ASSURANCE
IMPROVING OUR EMISSIONS REPORTING
As part of our commitment to continuous improvement, we undertake periodic reviews and updates to our GHG inventory,
its methodologies and emission factors. We do this to enable a well-designed and maintained corporate GHG inventory and
to continuously align with the IPCC and GHG Protocol.
Methane emissions from Mozambique Operations
Restatements
Recent divestments and improvements to our GHG inventory calculations necessitated a review of our
2017 baseline for Sasol Energy, including removal of specific sources of emissions. A high-level summary
of these updates are indicated in the graph and points below:
• Secunda Operations removed scope 2 emissions relating to the sale of the ASUs to Air Liquide for
the years 2017 to 2021;
• Secunda Operations reviewed scope 1 emissions from 2017 to 2019 based on independent technical
audit findings, with improvements made to the calculation methodologies; and
• Sasol Mozambique reviewed scope 1 emissions to include methane sources not reported from 2017.
Since 2004, Sasol has been calculating and reporting CO2 emissions from flaring activities and fuel gas
combustion at our main operating site in Mozambique, the Central Processing Facility (CPF). At COP26, the
decisions taken relating to methane emissions, coupled with stakeholder issues (see page 9 - 10), prompted
us to focus on these emissions and undertake a review of our emissions inventory, particularly in Mozambique.
As a result, we identified additional methane-emitting activities and added these emissions to our inventory.
The scope of the review included detailed mapping of all potential sources, development of a baseline
measurement approach for additional emitting activities and collection of emissions data. International
and South African GHG quantification methodologies were used to calculate emissions. Where physical
measurement methods or country specific guidelines did not exist, methodologies aligned to international
best practice, such as those developed by the IPCC, were leveraged.
Two main methane sources were identified:
• Mozambique Operations (inclusive of the operating wells, pipelines to the CPF and the CPF); and
Sasol Energy 2017 re-baselining
2 051
1.9%
-0.1%
1 189
63 000
63 926
64 000
-3.2%
Minor
restatements
over the last
5 years
62 000
Assessments indicate that ~819 ktCO2e were emitted for our Mozambique Operations in 2022 (see table below),
of which methane was ~16kt (~368 ktCO2e), excluding the Pande-4 well. These calculations have been assured
by an independent third-party specialising in technical verification of GHG inventories. These emissions
represent ~1% of Sasol’s total GHG emissions.
63 001
65 000
Baseline
recalculated
and updated
due to GHG
calculation
improvements
63
ASU divestment
(oxygen trains 1 to 16).
Data removed from baseline
66 000
• Pande-4 a non-operational well that Sasol inherited when we took over the achorage as part of our
Petroleum Production Agreement (PPA) Concession. This well had experienced a catastrophic blow-out in
1965, resulting in the operator at the time implementing multiple interventions over 400 days to control
the well. Further interventions took place over the years and the well appeared stable. However, today
water and small quantities of gas are being emitted in the surface area surrounding the well.
61 000
60 000
2017 previous baseline
Secunda Scope 2
Secunda Scope 1
Others
2017 re-baselined
Sasol Mozambique’s emissions for 2022
tCO2
tCH4
tN2O
tCO2e
Operational
Fugitive emissions
Flaring emissions
Fuel gas
1 853
34 070
420 833
15 740
0,6
7,5
0
0,06
0,75
363 880
34 102
421 227
Total operational emissions
456 756
15 748
0,81
819 209
SASOL CLIMATE CHANGE REPORT 2022
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