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Market notices
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In this section
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In this section
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Market Notices are issued through the Market Management System. They are updated in real time. Market notices are used to notify market participants of events that impact on the market, such as: advance notice of low reserve conditions, status of market systems, over-constrained dispatch, price adjustments, constraints, market directions, market interventions, and market suspensions.
Please subscribe to receive Market Notices via email.
For further information about any of the market notices listed below, please contact the AEMO Information & Support Hub.
STTM Notices
STTM Event Delayed Allocation Submission – Adelaide – 1 January 2018STTM ER 18-001 Delayed allocation submission - Adelaide - 1 January 2018
06 February 2018 (381 KB, pdf)Draft decision on March 2017 changes to the STTM Interface ProtocolSTTM Interface Protocol - March 2017 amendments - Draft Decision
17 February 2017 (292 KB, pdf)STTM Participant Build Pack v20 (marked up)
17 February 2017 (2.3 KB, pdf)STTM Reports Specifications v17(marked up)
17 February 2017 (3.2 MB, pdf)STTM ER 16-006 Contingency gas trigger event - Sydney - 24 November 2016STTM ER 16-006 Contingency gas trigger event - Sydney - 24 November 2016
05 January 2017 (381 KB, pdf)Market Notice - Missing STTM DSA for gas days 31 Dec 2016 to 02 Jan 2017Market Notice - Missing STTM DSA for gas days 31 Dec 2016 to 02 Jan 2017
17 February 2017 (20 KB, pdf)Market Notice - Missing STTM DSA for gas days 31 Dec 2016 to 02 Jan 2017
17 February 2017 (20 KB, pdf)Market Notice - Missing STTM DSA for gas days 31 Dec 2016 to 02 Jan 2017
17 February 2017 (20 KB, pdf)STTM ER 16-005 Contingency gas trigger event - Sydney - 10 November 2016This report reviews the events following AEMO's initiation of the contingency gas process due to a forecast inability of an STTM facility to meet the normal seasonal levels of daily delivery capacity to the Sydney hub for gas day 10 November 2016. Note no contingency gas was required.
STTM ER 16-005 Contingency gas trigger event - Sydney - 10 November 2016
15 December 2016 (438 KB, pdf)Market Notice - Longford Industrial Action update 06 December 2016Market Notice - Longford Industrial Action update 06 December 2016
06 December 2016 (260 KB, pdf)STTM ER 16-004 Contingency gas trigger event - Sydney - 01 October 2016This report reviews the events following AEMO's initiation of the contingency gas process for an event upstream of the Sydney STTM hub, that was expected to adversely affect the supply of natural gas for gas day 1 October 2016 at the Sydney hub. Note no contingency gas was required.
STTM ER 16-004 Contingency gas trigger event - Sydney - 01 October 2016
10 November 2016 (504 KB, pdf)STTM ER 16-003 Delayed allocation submission - Brisbane - 8 July 2016This report describes the events leading to, and the market outcomes of, the delayed delivery of the facility allocation data for the Roma to Brisbane Pipeline on 8 July 2016 at the STTM Brisbane hub.
STTM ER 16-003 Delayed allocation submission - Brisbane - 8 July 2016
18 August 2016 (258 KB, pdf)STTM Suspension Announcement GoEnergy Pty Ltd - 4 April 2016STTM Suspension Notice under rule 488 National Gas Rules (NGR) GoEnergy
04 April 2016 (92 KB, pdf)Go Enegy gas RoLR notice
04 April 2016 (232 KB, pdf)SSTTM ER 16-002 Contingency gas trigger event - Sydney - 13 January 20166This report reviews the events related to AEMO initiating the contingency gas process due to an event upstream of Sydney hub that could reasonably be expected to adversely affect the supply of natural gas for gas day 13 January 2016 at the Sydney hub. Note no contingency gas was required.
STTM ER 16-002 Contingency gas trigger event - Sydney - 13 January 2016
25 February 2016 (421 KB, pdf)STTM ER 16-001 Delayed allocation submission – Adelaide – 11 January 2016This report describes the events leading to, and the market outcomes of, the delayed delivery of the facility allocation data for the Moomba to Adeliade Pipeline on 11 January 2016 at the STTM Adelaide hub.
STTM ER 16-001 Delayed allocation submission - Adelaide - 11 January 2016
23 February 2016 (592 KB, pdf)Notice of EGP Wilton CTP commencing operations at the STTM Sydney HubCommissioning of New Sydney Hub Custody Transfer Point – EGP Wilton. This Notice is to advise that Jemena EGP intends to commence commissioning the EGP Wilton CTP on 25 November 2015. In accordance with clause 2.2(g) of the STTM Procedures, the EGP Wilton Receipt Point will become an operational custody transfer point at the Sydney hub from the beginning of the gas day commencing on 25 November 2015.
Notice of EGP Wilton CTP commencing operations at the STTM Sydney Hub
23 November 2015 (592 KB, pdf)Final Notice to Participants of AEMO’s decision on making the STTM Procedures v12.0 (IIR 15-003)Final Notice to Participants of AEMO’s decision on making the STTM Procedures v12.0 (IIR 15-003)
14 October 2015 (592 KB, pdf)STTM ER 15-003 Contingency Gas Trigger Event – Sydney – 23 July 2015This report reviews the events related to AEMO initiating the contingency gas process due to an event upstream of Sydney hub that could reasonably be expected to adversely affect the supply of natural gas for gas day 23 July 2015 at the Sydney hub. Note no contingency gas was required.
STTM ER 15-003 Contingency gas trigger event Sydney - 23 - July 2015
8 September 2015 (592 KB, pdf)Notice to Participants of AEMOs decision on making the STTM Procedures - version 11.0 and BB Procedures – version 5.0These Notices advise all Registered Participants and other interested stakeholders that AEMO has decided to amend the STTM and BB Procedures, effective from 30 September 2015.
Notice to Participants of AEMOs decision on making the STTM Procedures v11.0 (IIR 15-001)
4 September 2015 (251 KB, pdf)Notice to Participants of AEMOs decision on making the STTM Procedures v11.0 and BB Procedures v5.0 (IIR 15-002)
4 September 2015 (270 KB, pdf)STTM ER 15-002 Delayed allocation submission – Sydney – 16 June 2015This report describes the events leading to, and the market outcomes of, the delayed delivery of the facility allocation data for the Newcastle Gas Storage on 16 June 2015 at the STTM Sydney hub.
STTM ER 15-002 Delayed allocation submission - Sydney - 16 June 2015
28 July 2015 (193 KB, pdf)STTM ER 15-001 Administered Ex Post Price - Sydney - 19 May 2015This report describes the events leading to, and the market outcomes of, the administered ex post pricing event for gas day 19 May 2015 at the STTM Sydney hub.STTM ER 15-001 Administered Ex Post Price - Sydney - 19 May 2015
19 May 2015 (193 KB, pdf)Notice of Hexham CTP commencing operations at the STTM Sydney HubCommissioning of New Sydney Hub Custody Transfer Point – Newcastle Gas Storage Facility
This Notice is to advise that AGL intends to commence commissioning and subsequently operating the Newcastle Gas Storage Facility (NGSF) on 15 June 2015.
In accordance with clause 2.2(f) of the STTM Procedures, the Hexham Receipt Point will become an operational custody transfer point at the Sydney hub from the beginning of the gas day commencing on 15 June 2015.Notice of Hexham CTP commencing operations at the STTM Sydney Hub
26 May 2015 (141 KB, pdf)STTM ER 14-003 Delayed allocation submission - Sydney – 16 October 2014This report describes the events leading to, and the market outcomes of, the delayed delivery of the facility allocation data for the Eastern Gas Pipeline on 16 October 2014 at the STTM Sydney hub.
STTM ER 14-003 Delayed allocation submission - Sydney – 16 October 2014
25 November 2014 (269 KB, pdf)Notice to Participants of AEMOs decision on making the STTM Procedures - version 10.0This Notice advises all Registered Participants and other interested stakeholders that AEMO has decided to amend the STTM Procedures, effective from 1 November 2014.
Notice to Participants of AEMOs decision on making the STTM Procedures - version 10.0
26 September 2014 (931 KB, pdf)STTM ER 14-002 Delayed allocation submission - Adelaide - 29 July 2014This report describes the events leading to, and the market outcomes of, the delayed delivery of the facility allocation data for the Moomba Adelaide Pipeline on 29 July 2014 at the STTM Adelaide hub.
STTM ER 14-002 Delayed allocation submission - Adelaide - 29 July 2014
09 September 2014 (259 KB, pdf)Notice to Participants of AEMOs decision on making the STTM Procedures - version 9.0This Notice advises all Registered Participants and other interested stakeholders that AEMO has decided to amend the STTM Procedures, effective from 26 September 2014.
Notice to Participants of AEMOs decision on making the STTM Procedures - version 9.0
05 September 2014 (269 KB, pdf)STTM ER 14-001 Administered ex-post price – Adelaide and Sydney Hubs – 1, 2 & 3 June 2014This event report describes the events leading to, and the market outcomes of the determination of an administered ex post price state for gas days 1, 2 & 3 June 2014 at the Adelaide and Sydney hubs.
STTM ER 14-001 Administered ex-post price - Adelaide - Sydney - 1, 2, 3 June 2014
11 July 2014 (240 KB, pdf)Notice to Participants of AEMOs decision on making the STTM Procedures - version 8.0This Notice advises all Registered Participants and other interested stakeholders that AEMO has decided to amend the STTM Procedures, effective from 1 April 2014.
Notice to Participants of AEMOs decision on making the STTM Procedures - version 8.0
07 Mar 2014 (244 KB, pdf)STTM ER 13-008 Delayed allocation submission - Adelaide - 21 December 2013This report describes the events leading to, and the market outcomes of, the delayed delivery of the facility allocation data for the Moomba Adelaide Pipeline on 21 December 2013 at the STTM Adelaide hub.
STTM ER 13-008 Delayed allocation submission - Adelaide - 21 December 2013
06 Feb 2014 (234 KB, pdf)STTM ER 13-007 High warning capacity submission - Sydney - 15 December 2013This event report describes the events leading to, and the market outcomes of, the breach of high capacity warning limits for the APA Moomba to Sydney Pipeline for gas 15 December 2013 at the STTM Sydney hub.
STTM ER 13-007 High warning capacity submission - Sydney - 15 December 2013
30 Jan 2014 (222 KB, pdf)STTM ER 13-006 Delayed capacity submission - Brisbane - 15 October 2013This report describes the events leading to, and the market outcomes of, the delayed delivery of the facility hub capacity data for the Roma Brisbane Pipeline for gas day 15 October 2013 at the STTM Brisbane hub.
STTM ER 13-006 Delayed capacity submission - Brisbane - 15 October 2013
25 Nov 2013 (224 KB, pdf)STTM ER 13-005 Delayed capacity submission - Adelaide - 8 October 2013This report describes the events leading to, and the market outcomes of, the delayed delivery of the facility hub capacity data for the Moomba Adelaide Pipeline for gas day 8 October 2013 at the STTM Adelaide hub.
STTM ER 13-005 Delayed capacity submission - Adelaide - 8 October 2013
18 Nov 2013 (223 KB, pdf)STTM ER 13-004 Delayed capacity submission – Sydney – 7 October 2013This report describes the events leading to, and the market outcomes of, the non delivery of the D-1 facility hub capacity data for the Jemena Eastern Gas Pipeline for gas day 7 October 2013 at the STTM Sydney hub and the AEMO market systems defect which prevented Jemena from submitting the capacity data after 9:30am.
STTM ER 13-004 Delayed capacity submission – Sydney – 7 October 2013
15 Nov 2013 (176 KB (.pdf)STTM ER 13-003 Delayed allocation submission and administered ex-post price - Adelaide - 5 August 2013This report describes the events leading to, and the market outcomes of, the delayed delivery of the facility allocation data for the Moomba Adelaide Pipeline on 5 August 2013 and the subsequent determination of an administered ex post price state for gas day 4 August 2013 at the STTM Adelaide hub.
STTM ER 13-003 Delayed allocation submission and administered ex-post price -Adelaide- 5 August 2013
12 Sept 2013 (238 KB, pdf)STTM ER 13-002 Delayed capacity and allocation submissions - Sydney - 13 and 14 July 2013This report describes the events leading to, and the market outcomes of, the delayed delivery of the facility hub capacity and allocation data for the Jemena Eastern Gas Pipeline on the 13 and 14 July 2013 at the STTM Sydney hub.
STTM ER 13-002 Delayed capacity and allocation submissions - Sydney - 13 and 14 July 2013
23 Aug 2013 (235 KB, pdf)STTM Event Report 13-001 Administered ex-post price - Sydney - 29 May 2013This event report describes the events leading to, and the market outcomes of the determination of an administered ex post price state for gas day 29 May 2013 at the Sydney hub.
STTM Event Report 13-001 Administered ex-post price - Sydney - 29 May 2013
11 July 2013 (169.7 KB, pdf)STTM Event Report – Gas Day 23 November 2012 at Sydney, Adelaide and Brisbane HubsThis event report describes the events leading to, and the market outcomes of, an administered ex post pricing state at Adelaide and Sydney hubs and the delayed STTM ex post imbalance price for the Brisbane hub for gas day 23 November 2012.
STTM Event Report – Gas Day 23 November 2012 at Sydney, Adelaide and Brisbane Hubs
15 Apr 2013 (329 KB, pdf)STTM Event Report - Gas Day 19 November 2012 at Sydney and Adelaide HubsThis event report describes the events leading to, and the market outcomes of, delayed determination of ex post imbalance prices for gas day 19 November 2012 at the Sydney and Adelaide hubs.
STTM Event Report - Gas Day 19 November 2012 at Sydney and Adelaide Hubs
01 Jan 2013 (226 KB, pdf)STTM Event Report - Gas Day 27 August 2012 at Sydney and Adelaide HubsThis event report describes the events leading to, and the market outcomes of, delayed determination of ex post imbalance prices for gas day 27 August 2012 at the Sydney and Adelaide hubs.
STTM Event Report - Gas Day 27 August 2012 at Sydney and Adelaide Hubs
09 Oct 2012 (165 KB, pdf)STTM Event Report - Gas Day 11 May 2012 at Sydney HubThis event report describes the events leading to, and the market outcomes of, the delayed delivery of the Rosalind Park Hub capacity for gas day 11 May 2012 at the STTM Sydney Hub.
STTM Event Report - Gas Day 11 May 2012 at Sydney Hub
20 Jun 2012 (1130-0732, pdf)STTM Event Report - Gas Day 1 May 2012 at Brisbane HubThis report reviews the events related to AEMO initiating the contingency gas process due to a forecast of pressure conditions under acceptable operating levels at a hub for gas day 1 May 2012 at the Brisbane hub. Note no contingency gas was required.
STTM Event Report - Gas Day 1 May 2012 at Brisbane Hub
12 Jun 2012 (1130-0728, pdf)Advice - Commissioning of Albion Park Custody Transfer PointThis notice issued under clause 2.2(e) of the STTM Procedures is to advise that, on the 20 May 2012, Jemena Gas Networks commissioned a new custody transfer point at Albion Park in NSW located south of the Port Kembla Custody Transfer Station on the Eastern Gas Pipeline.
Commissioning of New Sydney Hub Custody Transfer Point - Albion Park Receipt Point
23 May 2012 (1130-0725, pdf)STTM Event Report - Gas Day 10 February 2012 at Sydney HubThis report reviews the events related to AEMO initiating the contingency gas process due to insufficient ex ante offers to supply all price taker bids for the D-3 schedule for gas day 10 February 2012 at the Sydney hub. Note no contingency gas was required.
STTM Event Report - Gas Day 10 February 2012 at Sydney Hub
13 Jun 2012 (1130-0730, pdf)STTM Event Report - Gas Day 31 January 2012 at Sydney HubThis event report describes the events leading to, and the market outcomes of, the delayed delivery of the Rosalind Park Hub capacity for gas day 31 January 2012 at the STTM Sydney Hub.
STTM Event Report - Gas Day 31 January 2012 at Sydney Hub
13 Feb 2012 (1130-0699, pdf)STTM Event Report - Gas Day 2 January 2012On 3 January 2012, Epic Energy was unable to successfully submit the STTM facility allocations for the Moomba to Adelaide Pipeline for gas day 2 January 2012 by the 11:00am cut-off time.
STTM Event Report - Gas Day 2 January 2012
03 Feb 2012 (1130-0697, pdf)STTM Event Report - Gas Day 31 December 2011 at Brisbane HubThis report reviews the events that resulted in a delayed ex post imbalance price which was also incorrectly determined for gas day 31 December 2011 at the Brisbane Hub.
STTM Event Report - Gas Day 31 December 2011 at Brisbane Hub
13 Feb 2012 (1130-0698, pdf)STTM Incident Report - Gas Day 8 December 2011This report reviews the events that resulted in a delayed ex post imbalance price for gas day 8 December 2011 at the Brisbane hub as a result of a defect in the STTM systems.
STTM Incident Report - Gas Day 8 December 2011
17 Jan 2012 (1130-0690, pdf)STTM Procedures Final Decision - 11-002 CG DSR Information ExchangeAEMO has published its final decision to not make any procedure changes relating to information exchange between a STTM distributor and a STTM user in relation to sites providing demand side reduction during contingency gas events.
STTM Event Report - Gas Day 28 and 29 November 2011This event report describes the events leading to, and the market outcomes of, the breach of lower capacity warning limits for the APA Moomba to Sydney Pipeline for gas days 28 and 29 November 2011 at the STTM Sydney hub.
STTM Event Report - Gas Day 28 and 29 November 2011
21 Dec 2011 (1130-0684, pdf)STTM Event Report - Gas Day 20 and 21 November 2011On 20 November 2011, Jemena Eastern Gas Pipeline (EGP) encountered problems with its IT connectivity to the AEMO market systems.
STTM Event Report - Gas Day 20 and 21 November 2011
08 Dec 2011 (1130-0677, pdf)STTM Event Report – Gas Day November 16 2011This event report describes the events leading to, and the market outcomes of, the delayed delivery of the facility hub capacity for the Epic Moomba to Adelaide pipeline for gas day 16 November 2011 at the STTM Adelaide hub.
STTM Event Report - Gas Day 16 November 2011
24 Nov 2011 (1130-0667, pdf)Effective date of Version 7 of the STTM Procedures - Amendments for the MSV WindowThis notice advises all registered participants that the effective date of version 7 of the STTM Procedures is Tuesday 13 December 2011.
Notice to Participants on the effective date of version 7 of the STTM Procedures - Amendments for the MSV Window
17 Nov 2011 (1130-0663, pdf)STTM Procedures v7 – change marked
17 Nov 2011 (1130-0664, pdf)Effective date of Version 6.1 of the STTM Procedures - Amendments for the Brisbane HubThis notice advises all registered participants that the effective date of version 6.1 of the STTM Procedures is Thursday 1 December 2011.
Notice to Participants on the effective date of version 6.1 of the STTM Procedures - Amendments for the Brisbane Hub
10 Nov 2011 (1130-0658, pdf)STTM Procedures version 6.0 and 6.1This Notice advises all Registered Participants and Bulletin Board Participants (Participants) that consultation for changes to the Short Term Trading Market (STTM) Procedures under the expedited procedure change consultative process prescribed in rule 135EE of the National Gas Rules (NGR) concluded on 12 September 2011.
Notice to Participants on the making of STTM Procedures versions 6.0 and 6.1
17 Oct 2011 (1130-0631, pdf)
STTM Event Report – Gas Days 22 and 24 September 2011This event report describes the events leading to, and the market outcomes of, the delayed delivery of the Rosalind Park hub capacity for gas days 22 and 24 September 2011 at the STTM Sydney hub.
STTM Event Report - Gas Day 22 & 24 September 2011
14 Oct 2011 (1130-0628, pdf)Effective Date of SIP Version 4AEMO published a final decision to amend the STTM interface protocol on 27 July 2011 for the QLD STTM. This notice informs participants of the effective date of version 4 of the SIP.
Notice to Participants on the Effective date of version 4 of the STTM Interface Protocol - Amendments for the Brisbane Hub
25 Oct 2011 (1130-0640, pdf)STTM Event Report – Gas Day 8 September 2011This event report describes the events leading to, and the market outcomes of, the delayed determination of the ex post imbalance price for gas day 8 September 2011 at the STTM Sydney hub.
STTM Event Report – Gas Day 8 September 2011
28 Sep 2011 (1130-0592, pdf)Advice – Establishment of Albion Park Custody Transfer PointThis information is to advise that Jemena Gas Networks (JGN) is preparing to commission a new Custody Transfer Point at Albion Park in NSW between JGNs Wilton-Wollongong Network section and the Eastern Gas Pipeline. JGN advise that the Albion Park receipt point is expected to be operational from mid October 2011.
Advice – Establishment of Albion Park Custody Transfer Point
16 Sep 2011 (1130-0577, pdf)Notice to Participants of an extension of time under NGR 135EGNotice to Participants of an extension of time under NGR 135EG for STTM PPC 11-002
05 Aug 2011 (1130-0551, pdf)SIP Version 4 - Final Decision on Amendments for Brisbane HubFinal Decision to Amend SIP Version 3
27 Jul 2011 (1130-0546, pdf)STTM Event Report for Gas Day 22 June 2011STTM Event Report for Gas Day 22 June 2011
20 Jul 2011 (1130-0540, pdf)STTM Procedures version 5Notice to participants on approval of STTM Procedures v5.0
25 May 2011 (1130-0509, pdf)AEMO final decision v5
25 May 2011 (1138-0016, pdf)STTM Procedures - QLD ChangesNotice to participants on AEMO decision to approve the making of the STTM Procedures for implementation of the Brisbane hub - effective on the commencement date of the Brisbane STTM hub.
Notice of decision on amendments to the STTM Procedures (QLD STTM)
26 Aug 2011 (1130-0567, pdf)Notice of decision on amendments to the STTM Procedures (QLD STTM)
14 Apr 2011 (1138-0014, pdf)Incident Report for Gas Day 28th January 2011Incident report for gas day 28th January 2011
23 Mar 2011 (1130-0485, pdf)STTM Procedures version 4.0Notice to Participants on AEMO decision to approve the making of the STTM Procedures version 4.0.
Notice of making of STTM Procedures v4.0
23 Mar 2011 (1130-0484, pdf)STTM Procedures version 3.0Notice to participants on the making and effective date of STTM Procedures version 3.0.
Notice on STTM Procedures v3.0
10 Mar 2011 (1130-0479, pdf)STTM Procedures version 2.0Notice to participants on AEMO decision to approve the making of the STTM Procedures version 2.0 for the Short Term Trading Market (NSW and SA).
Notice of making of STTM Procedures v2.0
22 Sep 2010 (1130-0446, pdf)Notice to Participants on effective date of STTM Procedures versoin 2.0 for the Short Term Trading Market.Notice on effective date of STTM Procedures v2.0
10 Nov 2010 (1130-0455, pdf)Notice - Establishment of Short Term Trading Market Consultative Forum (STTM-CF)The STTM Consultative Forum has been established and information relating to the forum can be found on the STTM-CF page.