Decision

On 4 June 2026, the AER published its determination specifying actions Transgrid must take to respond to a material change in circumstances in relation to its Meeting System Strength Requirements in NSW regulatory investment test for transmission. This determination was made in accordance with clause 5.16.4(z5A)(2) and (4) of the National Electricity Rules.

Our determination specifies that Transgrid is required to undertake updated analysis, publish a draft statement and allow 1 month of public consultation. Following this consultation, Transgrid is required to prepare and publish a final statement which responds to submissions and identifies any refinement to the preferred option.