Compliance Bulletin No 9 - Price taker bids and changes in distribution network linepack

Compliance bulletin
Release date: 
23 October 2012


This compliance bulletin relates to the bidding obligations of gas Short Term Trading Market (STTM) users when they are notified of a change in linepack within a distribution network.

The AER prepared this compliance bulletin in response to concerns from Trading Participants.

The compliance bulletin puts forward the view that when STTM users are notified of changes in linepack in a distribution network they should take account of these changes when submitting price taker bids (and ex ante bids when relevant).

The AER considers this will result in less market operator service (MOS) being required on affected gas days.