AER – 2026 RORI review discussion paper – Appendix A – WTA illustrative example – 4 August 2025

On 4 August 2025, we formally started our 2026 Rate of Return Instrument (RORI) review with the release of an AER discussion paper.

The discussion paper sets out our positions on what we consider likely to be the key issues for the 2026 RORI review It forms part of our initial engagement for the review, building on previous reviews and stakeholder engagement. We invite stakeholder input on the proposed areas of focus and our approach to further analysis.