AER - Transgrid 2023-28 - Final Decision - Attachment 4 Regulatory depreciation - April 2023

On 28 April 2023, we released our final decision on Transgrid’s transmission determination for the 2023–28 regulatory control period. Our final decision is set out in the Overview and accompanying Attachments. As a number of issues were settled at the draft decision stage or required only minor updates, we have not prepared all attachments. In these circumstances, our draft decision reasons form part of this final decision