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Loss Factors

In accordance with section 2.27 of the WEM Rules, by 1 June of each year Western Power must calculate and provide to AEMO Loss Factors for each connection point in its network. Where Western Power fails to provide AEMO with the Loss Factors by 1 June, AEMO must continue to use the equivalent Loss Factors from the previous year until such time as Western Power has provided AEMO with the new Loss Factors and those Loss Factors have taken effect.

AEMO must publish the Loss Factors within two business days after receiving them from Western Power. AEMO must also publish the time from which the Loss Factors will apply.

A Market Participant may apply to AEMO for a reassessment of any Loss Factor applying to a Scheduled Generator, Non-Scheduled Generator, Curtailable Load, Interruptible Load, Dispatchable Load, or Non-Dispatchable Load registered by that Market Participant in accordance with section 2.27.15 of the WEM Rules.

Loss Factors 2019 - 2020

The links below provide further information on the Loss Factors which apply from 1 July 2019.

Previous Loss Factors

The links below provide further information on the Loss Factors which apply from 1 July 2018.

The links below provide further information on the Loss Factors which apply from 1 July 2017.

The links below provide further information on the Loss Factors which apply from 1 July 2016.

The links below provide further information on the Loss Factors which applied from 1 July 2015.

The links below provide further information on the Loss Factors which apply from 1 July 2014.

The links below provide further information on the Loss Factors which apply from 1 July 2013.

The links below provide further information on the Loss Factors which apply from 1 July 2012.

The links below provide further information on the Loss Factors which apply from 1 July 2011.

The links below provide further information on the Loss Factors which apply from 1 July 2010.

The links below provide further information on the Loss Factors which apply from 1 July 2009

The links below provide further information on the Loss Factors which apply from 1 October 2008. New Loss Factors or Loss Factors amended after 1 October 2008 apply as per the dates in each file:

The links below provide further information on the 2007/08 Loss Factors which applied until 1 October 2008:

The Loss Factor procedure can be found here .

This web page is published in accordance with Market Rule 10.5.1 (l).

 

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