Security and Reliability of Supply
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Consultation has concluded
Our response
- Satisfaction with reliability of supply overall benchmarked above national average at 76%, despite ongoing challenges.
- 10 of 12 reliability targets met for 2019-20 (result 83%: target 100%) – planned outages associated with an increase in safety-driven works on aging sections of the network impacted the duration of outages across regional Queensland.
- Solar is changing the shape of load profiles across the day, and throughout the year, ‘hollowing out’ the load during the middle of the day. This lowers the minimum demand system-wide and creates local network challenges around reverse power flows and voltages – in South East Queensland, minimum demand fell from 1,359MW to 1,136MW.
- Across the state, we continued to invest in asset inspection, maintenance, refurbishment and replacement strategies to address the performance challenges of an ageing network. We invested $471 million in renewing the Ergon Network in 2019-20, up from $380 million in 2018-19.
