NEM Electricity Statement of Opportunities (ESOO)
2026 Electricity Statement of Opportunities
The Electricity Statement of Opportunities (ESOO) provides technical and market data for the National Electricity Market (NEM) over a 10-year period to inform the planning and decision-making of market participants, new investors, and jurisdictional bodies.
The NEM ESOO incorporates AEMO’s reliability forecasts under the Retailer Reliability Obligations (RRO) and the Energy Adequacy Assessment Projection (EAAP).
On 2 September, from 11:00am - 12:30pm AEST, AEMO will hold a webinar to present the 2026 NEM ESOO and answer stakeholder questions.
-
25/08/2026
2026 ESOO Overview
592.78 KB -
25/08/2026
2026 Electricity Statement of Opportunities
4.49 MB -
25/08/2026
2026 ESOO Data Centre forecasting overview
656.67 KB -
25/08/2026
2026 NEM ESOO Appendix A1 Retailer Reliability Obligation
1005.05 KB -
25/08/2026
2026 NEM ESOO Appendix A2 Energy Adequacy Assessment Projection
1.48 MB -
25/08/2026
2026 NEM ESOO Appendix A3 Demand Flexibility
1.09 MB -
25/08/2026
2026 NEM ESOO Appendix A4 ESOO Reliability Assessment Results Interpretation
1.1 MB -
25/08/2026
2026 NEM ESOO Results Workbook
1.13 MB -
25/08/2026
2026 Forecasting Assumptions Update
3.84 MB -
25/08/2026
2026 Forecasting Assumptions Update Consultation Summary Report
1.08 MB
To view demand forecasts per region, see:
The Reliability Forecast, Guidelines and Methodologies
The Reliability Standard Implementation Guidelines describe how AEMO implements the reliability standard across its reliability processes, including the approach and assumptions in relation to the ESOO.
The ESOO and Reliability Forecast methodology document explains the types of inputs and key methodologies used to calculate expected USE outcomes and details how the reliability gap period and reliability gap are determined.
-
05/08/2024
Reliability Forecasting Guidelines
495.92 KB -
25/08/2026
2026 Electricity Demand Forecasting Methodology
3.08 MB -
25/08/2026
Electricity Demand Forecasting Methodology Track Changes
4.09 MB -
25/08/2026
2026 ESOO and Reliability Forecast Methodology Document
1.73 MB -
25/08/2026
2026 ESOO and Reliability Forecast Methodology Document Track Changes
1.99 MB -
26/08/2026
Notice - Reliability gap not forecast to occur in NSW, SA, and VIC 2027-28
426 KB