Strong Foundation for Growth, Decarbonisation and Shareholder Returns
MACC project*: Queensland Alumina
Limited (QAL) boiler feed water heating
Project summary:
Boiler feed water heating project seeks to install heat
recovery equipment to reduce waste energy by 50%
displacing 1.6 PJ/pa of coal.
Business case overview:
First abatement
Abatement (2025)
MACC (US$/tCO2)*
2024
115ktpa CO₂e
<$0/t CO₂e
Details:
QAL operates three parallel high
temperature digestion units, using
~25 PJ/pa of coal as boiler fuel. 12%
of boiler steam is utilised for boiler
feed water heating
Approximately 50% of this waste
steam can be captured by boiler
feed water reducing the steam
required for heating by ~50%
*Marginal Abatement Cost Curve for Scope 1 & 2 emissions. Under assessment through the planning process. The project has a positive NPV at a carbon price
of zero
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