Distribution loss factors (DLFs) represent the average electricity loss on a distribution network, between a distribution network connection point and a transmission network connection point or a virtual transmission node.

Under the National Electricity Rules, we must calculate the DLFs using the Energy Regulator’s (AER) methodology or our own. Currently, the AER has not published a methodology, and we are using our own.

There are two types of DLFs – site-specific and volume weighted average loss.

Site-specific loss factors are determined for specific connection points, such as:

large generation units (over 10MW of actual generation)
large end-users with high electricity consumption (over 40GWh annually or more than 10MW maximum demand)
connection points for market network service providers
connection points between two or more distribution networks.

For all other connection points, the DLF is calculated based on the volume weighted average electricity loss between a specific transmission network connection point or virtual transmission node and the distribution network connection point in the relevant voltage class.

For more information, download our Methodology for calculating site-specific DLFs (PDF, 600 KB).

Regulatory publications

Electricity distribution

Electricity transmission

Gas distribution

Bushfire mitigation plans

Vegetation management plans

Distribution loss factors

Planning reports

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