Environment
Scope 3 emissions
AGL's Scope 3 emissions for FY26 have decreased from FY25 levels. The largest reduction was in Scope 3 emissions associated with the end use of coal sold to Loy Yang B Power Station, driven by reduced brown coal sales from Loy Yang Mine to Loy Yang B Power Station. Scope 3 emissions associated with the supply of electricity to customers also decreased slightly, due to a reduction in upstream emissions of purchased fuels.
Scope 3 emissions source | FY22 | FY23 | FY24 | FY25 | FY26 |
|---|---|---|---|---|---|
Supply of electricity to customers | 5.3 | 6.5 | 8.3 | 8.5 | 8.3 |
Supply of natural gas to customers | 1.6 | 1.4 | 1.1 | 1.0 | 1.0 |
End use of natural gas by customers | 7.0 | 6.1 | 4.7 | 4.4 | 4.4 |
End use of coal sold to Loy Yang B | 10.5 | 10.0 | 10.3 | 10.0 | 9.4 |
Other | 0.7 | 0.6 | 0.7 | 0.6 | 0.7 |
Total scope 3 emissions | 25.1 | 24.6 | 25.0 | 24.5 | 23.8 |
Supply of electricity to customers includes emissions from upstream activities including electricity generation and transmission and distribution where, at a state level, AGL's annual operated generation volume is less than the annual sales volume (at the point of sale to customer), as well as upstream emissions associated with fuel purchased for electricity generation at AGL's operated power stations. |
For the calculation of Scope 3 emissions associated with the supply of electricity to customers, AGL's generation position relative to customer demand is determined at a state level. This assumes that there is no interstate distribution of electricity generated by AGL and sold between states. An assumed loss factor is applied to AGL’s pool generation, to account for the difference between pool generation and sales to customers on the same basis. |
Emissions from electricity generated by AGL's operated assets and sold into electricity markets (i.e. operated pool generation) is excluded, as this is accounted for in AGL's Scope 1 emissions. |
Supply of natural gas to customers includes emissions associated with the production, transmission and distribution of natural gas sold. |
End use of natural gas by customers assumes all gas sold is combusted by customers. |
It is assumed that natural gas production, transmission and distribution, and end use occur in the state and financial year in which gas is sold. |
Electricity and gas sold to ActewAGL (for supply to ActewAGL customers) is included, as ActewAGL is a customer of AGL. |
Annual Scope 3 emissions are estimated. AGL continues to prioritise improvements in the underlying data and assumptions used to increase the accuracy of our Scope 3 calculations. Calculation method changes have been retrospectively applied, with historical data restated to align with the updated approach in FY26. |
Greenhouse gas emissions are rounded to the nearest 0.1 MtCO2e. Numbers may not sum to totals due to rounding. |
'Other' Scope 3 emissions for FY26 are estimated - this data is not yet available and will be reported 1 year in arrears. However, major capital goods purchases associated with development projects have occurred, the FY26 estimate is included in the reported figure. |