Environment
Carbon intensity of operated and controlled generation assets
The decrease in controlled emissions intensity in FY22 was driven primarily by decreased generation from AGL Loy Yang, as a result of decreased availability relative to FY21 due to a major outage of unit 2, and increased output from Bayswater and Liddell power stations in FY22, as well as increased renewable generation. This was partly offset by decreased gas-fired generation due to the mothballing of two units at Torrens Island Power Station. Market intensity decreased due to an increase in renewable generation.
Notes
Operated intensity comprises total Scope 1 and 2 emissions divided by total sent out generation of electricity generation facilities which fit within AGL’s operated boundary. Operational control is as defined by the National Greenhouse and Energy Reporting Act 2007.
Controlled intensity comprises total Scope 1 and 2 emissions divided by total sent out generation of electricity generation facilities which fit within AGL’s controlled boundary. AGL’s controlled boundary includes all electricity assets for which AGL has: ownership; and/or operational control as defined by the National Greenhouse and Energy Reporting Act 2007; and/or contracted rights to control the dispatch of electricity of the asset.
Greenhouse gas emissions have generally been calculated in accordance with methodologies under the National Greenhouse and Energy Reporting Act 2007.
Electricity generation is measured on a 'sent-out' basis at the power station gate.
Average market intensity is the weighted average Carbon Dioxide Equivalent Intensity Index of the National Electricity Market, as determined from data published by AEMO.
Greenhouse gas emissions include carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulphur hexafluoride (as applicable).
FY22 data was updated in November 2022. At the time of the initial release of the FY22 ESG Data Centre on 18 August 2022, estimated FY22 data was provided based on measured emissions from material sources and measured electricity generation, with estimates for minor emissions sources. FY22 intensity figures have not changed upon revision.
GRI Reference: 305-1; 305-4