In line with our final decision on SA Power Networks' electricity distribution network, we have updated SA Power Networks' return on debt for 2021–22. As a result of this update, the return on debt for 2021–22 is 4.57 per cent. This results in an X-factor for 2021–22 of 1.81 per cent. Holding other things constant, a positive X-factor implies a real revenue decrease and a negative X-factor implies a real revenue increase. The revised PTRM shows the updated X-factor.

In line with our final decision on SA Power Networks' electricity distribution network, we have updated SA Power Networks' return on debt for 2022–23. As a result of this update, the return on debt for 2022–23 is 4.44 per cent. This results in an X-factor for 2022–23 of 1.65 per cent. Holding other things constant, a positive X-factor implies a real revenue decrease and a negative X-factor implies a real revenue increase. The revised PTRM shows the updated X-factor.

On 16 September 2022, the AER released its decision on a positive cost pass through application received from SA Power Networks. The application relates to a new regulatory obligation published by the South Australian Office of the Technical Regulator imposing new standards on SA Power Networks to address power system security issues.

In line with our final decision on SA Power Networks' electricity distribution network, we have updated SA Power Networks' return on debt for 2023–24. As a result of this update, the return on debt for 2023–24 is 4.54 per cent. This results in an X-factor for 2023–24 of 0.56 per cent. Holding other things constant, a positive X-factor implies a real revenue decrease and a negative X-factor implies a real revenue increase. The revised PTRM shows the updated X-factor.

On 22 March 2024, the AER released its decision on a positive cost pass through application received from SA Power Networks.  This cost pass through application related to the recovery of costs incurred due to the flooding of the South Australian section of the River Murray between November 2022 and February 2023. 

In line with our final decision on SA Power Networks' electricity distribution network, we have updated SA Power Networks' return on debt for 2024-25. As a result of this update, the return on debt for 2024-25 is 4.59 per cent. This results in an X-factor for 2024-25 of 5.26 per cent. Holding other things constant, a positive X-factor implies a real revenue decrease and a negative X-factor implies a real revenue increase. The revised PTRM shows the updated X-factor.