Environment
Air emissions - oxides of nitrogen (NOx)
Liddell Power Station oxides of nitrogen emissions decreased 35% in FY23 due to the decrease in sub-bituminous coal combustion (down 31%), and the decrease in total electricity generated (down 32%).
AGL Torrens oxides of nitrogen emissions decreased 25% in FY23 which aligns with the overall decrease in pipeline natural gas combustion at Torrens Island and at Barker Inlet power stations (down 23%).
Bayswater Power Station oxides of nitrogen emissions decreased 11% in FY23 due to the decrease in sub-bituminous coal combustion (down 5%) and the decrease in total electricity generated (down 5%).
AGL Loy Yang oxides of nitrogen emissions decreased 9% in FY23 due to the decrease in coal combustion (down 9%) and total electricity generation (down 8%) in the reporting period.
Somerton Power Station oxides of nitrogen emissions increased 48% in FY23 due to the increase in natural gas combustion (increased 52%) and total electricity generation during the period (increased 28%).
Silver Springs Oil and Gas Project oxides of nitrogen emissions increased 75% in FY23 due to the increase in unprocessed natural gas combustion (increased 62%)
Kwinana Swift Power Station oxides of nitrogen emissions increased 95% in FY23 due to the increase in natural gas combustion (increased 98%) and total electricity generation during the period (increased 99%).
Notes
FY23 data was updated in November 2023. A subset of data (comprising emissions associated with the combustion of black coal at Bayswater and Liddell power stations, black and brown coal as well as natural gas at AGL Loy Yang Power Station, and gas and fuel oil at AGL Torrens Power Station) was reported with the initial release of the FY23 Data Centre on 10 August 2023.
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.
Continuous Emission Monitoring System (CEMS) was introduced to Units 2, 3 and 4 at Bayswater Power Station in November 2017.
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.
SASB IF-EU-120a