Current inputs, assumptions and scenarios

AEMO delivers a range of planning and forecasting publications to inform decision making including the Electricity Statement of Opportunities (ESOO), the Gas Statement of Opportunities (GSOO) and the Integrated System Plan (ISP).

AEMO strives to ensure its planning and forecasting publications are of highest quality, with data that is fit for purpose and industry-reviewed and processes that are transparent. To build confidence in the forecasts, and help decision makers understand the outcomes, AEMO consults on and publishes its scenarios, inputs, assumptions and methodologies. Confidential information is withheld from public release, but is incorporated in the modelling conducted, if necessary, to deliver assessments that are as accurate as possible.

AEMO completed its consultation on Inputs, Assumptions and Scenarios (IASR) in July 2021, taking into consideration feedback provided on the Draft IASR published in December 2020, as well as from several stakeholder workshops and webinars. Details of the consultation can be accessed below. 

2020-21 IASR consultation page

AEMO also consulted on its Draft Transmission Cost Report which, forms part of the 2021 Inputs, Assumptions and Scenarios report. Details of the consultation can be accessed below.

Transmission Cost Report Consultation

2020-21 Inputs, Assumptions and Scenarios  

The following documents contain descriptions and details of the scenarios, and the associated inputs and assumptions currently applied in AEMO’s Forecasting and Planning activities.

Supporting materials for 2021 (including for the 2022 ISP)

Demand trace data

2020 Inputs, assumptions and scenarios

2019-20 Inputs, assumptions and scenarios

The following documents detail the scenarios, inputs and assumptions used in Forecasting and Planning activities in 2019-20, notably the 2020 ISP.

Archive for inputs and assumptions workbook

Archive Supporting materials

Reference materials used to support the development of the inputs and assumptions.

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