Powercor Network Performance

While the reliability performance of our network is already high, we’re always trying to make it better.

Improving the reliability of our network is one of the main reasons we come to work each day. Powercor is one of the highest reliability performing rural electricity networks in Australia (based on the Australian Energy Regulator’s report), so we’re already doing well.

But there’s always room for improvement. So we’re constantly looking at how we can continue to provide a high quality service to a growing population, and then make it even better.

2021/22 Powercor Reliability Targets

Powercor provides a highly reliable electricity supply to more than 850,000 customers in western and central Victoria and Melbourne’s western suburbs. This is a proud record and we are working with the Australian Energy Regulator (AER) to make ongoing improvements to our service delivery.

The targets for service reliability that have been set for us in 2021/22 by the AER are summarised below.

Reliability MeasureOutage TypeUrban LinesRural Short LinesRural Long Lines
Average minutes off supply per year (SAIDI)Unplanned 69.23104.14240.92
Planned* 65.9765.9765.97
Average frequency of unplanned interruptions per year (SAIFI)Sustained (> 1 minute)0.821.152.02
Average frequency of momentary interruptions per year (MAIFI)Momentary (<=3 minutes)
Average length (in minutes) per unplanned interruption (CAIDI)8491119

* Planned SAIDI target not set by AER.

Although Powercor strives to deliver a high level of reliability to customers, occasionally we may be unable to meet your expectations. Powercor is required by section 6.3 of the Electricity Distribution Code to pay compensation to our customers if we fail to meet certain specified service levels. In 2021/22 Powercor anticipates making 13,500 Guaranteed Service Level payments for reliability.

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