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Total Carbon Emissions
Total Carbon Emissions
Total production of 10 103 t of CO2 emissions - YTD.
Scope 1 represent 88% of all emissions.
Scope 1 emissions
Scope 1 emissions
The combustion of coal for boiler operations is not only the biggest contributor to Scope 1, but also the entire emission spectrum at 6 672 t of CO2 emissions.
The combustion of diesel for the fleet and load-shedding generation has increased during 2023.
Scope 1 comparison
Scope 1 comparison
There is an overall reduction in Scope 1 carbon emissions between 2022 and 2023 for the YTD.
The improvement in energy efficiency during operations is also showcased as lower carbon emissions were achieved with a higher production yield.
Scope 2 comparison
Scope 2 comparison
Purchased Electricity is the only contributor to Scope 2.
Less electricity was purchased in 2023. as to YTD.
Nevertheless, the electricity requirement as per the increase in production yield was covered by diesel-generated electricity as indicated in the Scope 1 stationary carbon emissions graph.
Scope 3
Scope 3
Scope 3 reporting is not included in the Terrasan ESG reporting spectrum for 2023.
Future reporting will be included.
Total Carbon Emissions vs Production Yield
Production between March and April increased by almost 48%, nevertheless, carbon emissions only increased by 12%.
This correlates that coal combustion (the biggest carbon emissioner) is not directly linked to production yield.
Detailed assessments are required to determine this correlation.
For 2023 on average 1.15 kg of carbon is release for every 1 kg of product produce.
April was the most efficient month with 0.91 kg carbon to 1 kg product.
The data suggest that to much coal combustion (or steam generation) is conducted during lower product yield months.
Reduction of GHG Emissions
WPP has minimal renewable technologies installed, due to the continued mega demand for power.
Management is in the process of scoping sun power to support Eskom Electricity.
Other Air Emissions
As part of WPP air emissions license (AEL), additional air quality parameters should also be monitored and reported.
The stacks from the coal boilers must be monitored for particle matter (PM) and sulfide (SO2) annually.
The chemical scrubber dealing with air from the cookers must be monitored for hydrogen sulfide (H2O) on a bi-annuall basis.
16T boiler Stack
16T boiler Stack
This boiler's PM emissions have been above the limit for one reading in May of 2021.
PM has been compliant ever since.
This boiler's SO4 has been compliant since 2020.
20t Boiler Stacks
20t Boiler Stacks
This boiler's PM emissions have been compliant since 2020.
The measurement for 2023 was very close to the limit and poor excess air flow was deemed a possible cause. amendments will be implemented and reanalysis performed.
Also in May 2021, this boiler's SO4 emissions were above the limit.
SO2 has been compliant ever since.
Chemical Scrubber
Chemical Scrubber
The air quality emissions have been compliant since 2019, except for April 2023.
Ineffective chemical dosing has been identified as the cause. Amendments have been made and reanalysis will be performed in June 2023.
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