Energy supply disruptions can occur either due to technical failures or major physical damage to infrastructure, such as power plants, transmission or distribution networks.

Gas, electricity and liquid fuel supply losses can contribute to energy supply disruptions.

Examples of significant events in Victoria include:

  • 28 and 29 January 2018 - high demand from sustained high temperatures and humidity overloaded localised electricity network assets causing power outages.
  • 31 January 2020 - severe winds caused damage to eight transmission towers causing blackouts.

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Publish year Assurance activity Summary Organisation
2022 Community Report - June 2021 Extreme Weather Event (External link) A report that outlines key lessons identified from the extreme weather event of 2021, including what went well and areas for improvement. It aims to ensure that lessons of significance to both agencies and communities are considered, implemented and shared across the emergency management sector and with impacted communities. Emergency Management Victoria
2023 Preliminary report: Victoria market suspension on 22 April 2023 (External link) This report relates to an electricity spot market suspension in Victoria on 22 and 23 April 2023, a SCADA outage that resulted in risks to power system operation and caused market impacts. It includes the results of AusNet’s investigation, steps taken to address the cause of the event, and AEMO's recommendations for AusNet and network service providers. Australian Energy Market Operator