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Allowable revenue period from 2022 to 2025

On 17 December 2021, AEMO submitted its proposal for funding for the AR6 review period (1 July 2022 – 30 June 2025). AEMO proposed allowable revenue of $156.2 million and forecast capital expenditure of $69.4 million for AR6.

On 31 May 2022, the ERA published its final determination. The ERA determined $142.3 million of allowable revenue and $61.5 million in forecast capital expenditure for AEMO to perform its functions under the WEM Rules and GSI Rules in Western Australia for the AR6 period.

In period submissions

Following the ERA's AR6 determination, AEMO submitted two in-period requests to increase its expenditure:

  • In April 2023, for an increase in forecast capital expenditure of $47.11 million. The ERA has approved an additional $46.94 million forecast capital expenditure.
  • In March 2024, for an increase in forecast capital expenditure of $39 million and additional operating expenditure of $59.2 million. The ERA approved an additional $37.9 million forecast capital expenditure and $58.29 million operating expenditure.

Regulatory guidelines

We also consulted on and published: 

  • A funding proposal guideline, to provide clarity and guidance to AEMO and market participants regarding the level of detail about projects, functions and costs expected in AEMO’s proposal.
  • A regulatory reporting guideline, to provide clarity and guidance on AEMO’s annual financial reporting obligations.

2024 in-period adjustment

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2023 in-period adjustment

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Funding proposal guideline

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Regulatory reporting guideline

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2022-25 determination

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