Ausgrid - Letter to AER - Extension of time for 2019-24 regulatory period - 7 December 2017 - Attachment 4

In response to a written request from Ausgrid received on 7 December 2017, we have agreed to extend the due date for Ausgrid's regulatory proposal to 30 April 2018. Based on the approach taken by Ausgrid in developing its 2019‑24 upcoming proposal, we consider that our assessment of its 2019‑24 upcoming proposal can be completed within the revised timeframe, consistent with our usual consultative and robust processes.