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Environment

Waste

Ash waste is by far the largest of AGL’s waste streams. In FY20, ash waste accounted for around 99.7% of AGL’s total waste in tonnes generated, of which approximately 97.2% was disposed on-site and 2.5% was recycled off-site in accordance with applicable environmental licences and regulations.

During FY20, non-hazardous ash waste disposed on site increased 7% compared to FY19, mainly due to an increase in total ash produced at the Liddell Power Station (up 25%). Liddell Power Station ash production is directly related to the total volume of fuels (coal and diesel) combusted by the facility (up 14% and 8% respectively). Non-hazardous ash waste recycled off site has decreased 17% compared to FY19, due to operational constraints limiting recycling of bottom ash from Bayswater Power Station during FY20.

During FY20, total hazardous waste recycled increased by 66% compared to FY19, in part due to the increase in recycling reported at AGL Torrens (which includes Barker Inlet Power Station).

Non-hazardous waste disposed has remained relatively consistent with previous reporting periods. Non-hazardous waste recycled has decreased by 8%, due to a number of facilities reporting lower waste figures.

Notes

  • For the purposes of this data set, AGL Torrens comprises the Torrens Island Power Station and the Barket Inlet Power Station.

  • AGL is focussed on minimising waste generation and managing waste in accordance with the waste management hierarchy of ‘avoidance, resource recovery, disposal’. AGL’s Waste Standard and Waste Standard Methodology applies to AGL controlled sites where waste is generated, and covers all waste management activities including waste segregation, storage, transportation, reuse, recycling, treatment or disposal carried out by AGL employees and contractors. The Waste Standard has 16 minimum controls to ensure that: potential risks from waste management activities (e.g. waste transportation, treatment, and disposal) to the environment and human health are minimised to as low as reasonably practicable; generation of waste is managed and minimised as far as practicable and in accordance with the waste management hierarchy, relevant legislation, and approvals; and regulatory license conditions and other compliance obligations with respect to the management of waste are met. The Waste Standard Methodology provides guidance on how to achieve the Waste Standard minimum controls.

  • Unless otherwise indicated, waste categorised as 'disposed' and 'recycled' refer to waste taken offsite for these purposes.

  • AGL Loy Yang manages the disposal of its own flyash (non-hazardous waste) as well as the fly ash produced by the neighbouring Loy Yang B power station. Figures reported above include two-thirds of the amount of fly ash disposed by AGL Loy Yang, which is the best estimate of the proportion of fly ash originating from AGL’s power generation activities at Loy Yang.

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