Air emissions - particulates (PM10)
AGL Loy Yang emissions increased 26% compared to FY20. Emission production is split roughly 50/50 between point source and fugitive sources. Emissions from stack are measured by Continuous Emissions Monitoring Systems (CEMS) and recorded an increase of 66% compared to FY20 point source emissions, contributing to the increase in total air emissions.
Bayswater Power Station emissions increased 20% compared to FY20.
Liddell Power Station emissions increased 88% compared to FY20. Emissions are calculated using stack test analysis of total particulate matter, application of emission factors to determine PM10 content, and gas flow throughput for each unit during the reporting period.
AGL Torrens emissions decreased 25% compared to FY20. The decrease aligns with the general decrease in fuel combustion and electricity production observed at the facility across the reporting period.
FY21 data was updated in November 2021. A subset of the FY21 data (comprising emissions associated with the combustion of black coal and diesel at the Bayswater and Liddell power stations, black and brown coal as well as natural gas at AGL Loy Yang, and natural gas and fuel oil at AGL Torrens, and estimates of fugitive emissions at these sites) was reported with the initial release of the FY21 Annual Report and ESG Data Centre on 12 August 2021.
For the purposes of this data set, AGL Torrens comprises the Torrens Island Power Station and the Barker Inlet Power Station which commenced operation in December 2019.
All figures have been rounded to the nearest kilogram.
The National Assets were sold in FY19.
Emissions from Kwinana Swift Power Station were included from FY20.
Air emissions data for AGL sites is publicly reported NPI data. See www.npi.gov.au/.
The emission factors used in AGL's NPI reports are sourced from relevant industry emission estimation technique manuals available on the NPI website.