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Environment

Air emissions - particulates (PM2.5)

Emissions at AGL Torrens (which includes the Barker Inlet Power Station) decreased by 13% compared to FY19, mainly due to a 15% reduction in pipeline natural gas combusted at the facility. Emissions from the Barker Inlet Power Station contributed approximately 6% of the emissions reported for AGL Torrens, from the combustion of pipeline natural gas.

Emissions at the Loy Yang A Power Station decreased by 31% compared to FY19. PM2.5 emissions are estimated as a percentage of total particulate matter, measured from stack exhaust by Continuous Emissions Monitoring Systems (CEMS).

PM2.5 emissions at the Bayswater Power Station dropped 76% compared to FY19, likely the result of variations in stack tests. Emissions at the Liddell Power Station declined 7% compared to FY19, attributable to the lower average stack test results for the reporting period.

Notes

  • FY20 data was updated in December 2020. 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) was reported with the initial release of the FY20 Annual Report on 13 August 2020.

  • 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 restated to the nearest kilogram.

  • 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.

  • The National Assets were sold in FY19.

  • Kwinana Swift Power Station was purchased by AGL in FY2020.

  • Wallumbilla LPG Plant became operational in 2016 hence NPI reporting for this site commenced in FY17.

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