Filter by:
Filter by category
Filter by Date
From
To
71096MARKET SYSTEMS12/11/2019 11:01:31 AM
CHG0056826 : EMMS Preproduction - FTP File Server - Preventative Maintenance
Change Number: CHG0056826
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: EMMS - Data Interchange
Change Title: EMMS Preproduction - FTP File Server - Preventative Maintenance
Change Start Date & Time: 13/11/2019 09:00:00 AEST
Change End Date & Time: 15/11/2019 17:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Change Description:
Preventative maintenance on the EMMS Preproduction - FTP File Server.
Environment: Pre-Production
Participant Impact and Requirements:
Participants will notice two brief disconnections and reconnections to the FTP interface of the service during the change window.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: EMMS - Data Interchange
Change Title: EMMS Preproduction - FTP File Server - Preventative Maintenance
Change Start Date & Time: 13/11/2019 09:00:00 AEST
Change End Date & Time: 15/11/2019 17:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Change Description:
Preventative maintenance on the EMMS Preproduction - FTP File Server.
Environment: Pre-Production
Participant Impact and Requirements:
Participants will notice two brief disconnections and reconnections to the FTP interface of the service during the change window.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
71095RECLASSIFY CONTINGENCY12/11/2019 10:43:39 AM
Update - Reclassification of a Non-Credible Contingency Event: Armidale-Dumaresq 8C 330 kV Line and Armidale-Sapphire WF 8E 330 kV Line in NSW1 due to Bushfire.
AEMO ELECTRICITY MARKET NOTICE
Refer to AEMO Electricity Market Notices 71025 and 71082
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Bushfire. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly, AEMO continues to reclassify it as a credible contingency event.
Region: NSW1
Lines: Armidale-Dumaresq 8C 330 kV Line and Armidale-Sapphire WF 8E 330 kV Line
Duration: 08/11/2019 09:05 until further notice
Constraint set invoked: F-I-BCDM_N-2
Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1
T-V-MNSP1
Manager NEM Real Time Operations
Refer to AEMO Electricity Market Notices 71025 and 71082
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Bushfire. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly, AEMO continues to reclassify it as a credible contingency event.
Region: NSW1
Lines: Armidale-Dumaresq 8C 330 kV Line and Armidale-Sapphire WF 8E 330 kV Line
Duration: 08/11/2019 09:05 until further notice
Constraint set invoked: F-I-BCDM_N-2
Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1
T-V-MNSP1
Manager NEM Real Time Operations
71094RESERVE NOTICE12/11/2019 02:17:15 PM
RESERVE NOTICE MT PASA PUBLICATION 12 November 2019
The MTPASA result published on 12 November 2019 identifies no Low Reserve Conditions.
Please note that MTPASA informs the market of potential reliability issues to allow the market to respond in the first instance, potentially avoiding the need for any market intervention or direction from AEMO.
For further information, please refer to:
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Data/Market-Management-System-MMS/Projected-Assessment-of-System-Adequacy
This notice supersedes Market Notice 70941 published on 5 November 2019.
Background
As part of a broader process of implementing the reliability standard, AEMO runs the Medium Term Projected Assessment of System Adequacy (MTPASA) process weekly to forecast expected unserved energy levels over a two year period. If the expected annual unserved energy exceeds the maximum level specified by the Reliability Standard, a Low Reserve Condition is identified.
For more information about how AEMO implements the reliability standard, please view the Reliability Standard Implementation Guidelines (RSIG) available on AEMO's website at
https://www.aemo.com.au/-/media/Files/Stakeholder_Consultation/Consultations/Electricity_Consultations/2018/RSIG-Final/Reliability-Standard-Implementation-Guidelines-June-2018.pdf
Forecasting
AEMO
Please note that MTPASA informs the market of potential reliability issues to allow the market to respond in the first instance, potentially avoiding the need for any market intervention or direction from AEMO.
For further information, please refer to:
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Data/Market-Management-System-MMS/Projected-Assessment-of-System-Adequacy
This notice supersedes Market Notice 70941 published on 5 November 2019.
Background
As part of a broader process of implementing the reliability standard, AEMO runs the Medium Term Projected Assessment of System Adequacy (MTPASA) process weekly to forecast expected unserved energy levels over a two year period. If the expected annual unserved energy exceeds the maximum level specified by the Reliability Standard, a Low Reserve Condition is identified.
For more information about how AEMO implements the reliability standard, please view the Reliability Standard Implementation Guidelines (RSIG) available on AEMO's website at
https://www.aemo.com.au/-/media/Files/Stakeholder_Consultation/Consultations/Electricity_Consultations/2018/RSIG-Final/Reliability-Standard-Implementation-Guidelines-June-2018.pdf
Forecasting
AEMO
71093MARKET SYSTEMS12/11/2019 10:27:04 AM
CHG0056739 : Gas Supply Hub maintenance activities (PreProd)
Change Number: CHG0056739
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Gas Supply Hub
Change Title: Gas Supply Hub maintenance activities (PreProd)
Change Start Date & Time: 14/11/2019 14:00:00 AEST
Change End Date & Time: 14/11/2019 16:00:00 AEST
Outage Start Date & Time: 14/11/2019 14:00:00 AEST
Outage End Date & Time: 14/11/2019 16:00:00 AEST
Change Description:
Gas Supply Hub maintenance activities (PreProd)
Environment: Pre-Production
Participant Impact and Requirements:
All access to the Gas Supply Hub (Exchange Trading System) will be unavailable during the outage period. Access will be available outside this outage period.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Gas Supply Hub
Change Title: Gas Supply Hub maintenance activities (PreProd)
Change Start Date & Time: 14/11/2019 14:00:00 AEST
Change End Date & Time: 14/11/2019 16:00:00 AEST
Outage Start Date & Time: 14/11/2019 14:00:00 AEST
Outage End Date & Time: 14/11/2019 16:00:00 AEST
Change Description:
Gas Supply Hub maintenance activities (PreProd)
Environment: Pre-Production
Participant Impact and Requirements:
All access to the Gas Supply Hub (Exchange Trading System) will be unavailable during the outage period. Access will be available outside this outage period.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
71092INTER-REGIONAL TRANSFER12/11/2019 05:10:21 AM
Cancellation - Inter-regional transfer limit variation: Hazelwood - South Morang No.2 500 kV Line (Vic) - Voltage Control
AEMO ELECTRICITY MARKET NOTICE
Refer AEMO Electricity Market Notice 71091
The Hazelwood - South Morang No.2 500 kV Line has been returned to service
The following constraint set was revoked at 0510 hrs 12/11/2019
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1
Manager NEM Real Time Operations
Refer AEMO Electricity Market Notice 71091
The Hazelwood - South Morang No.2 500 kV Line has been returned to service
The following constraint set was revoked at 0510 hrs 12/11/2019
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1
Manager NEM Real Time Operations
71091INTER-REGIONAL TRANSFER12/11/2019 03:09:04 AM
Inter-regional transfer limit variation: Hazelwood - South Morang No 2 500 kV Line (VIC) - Voltage Control
AEMO ELECTRICITY MARKET NOTICE
The Hazelwood - South Morang No 2 500 kV Line has been de-energised to manage voltages in the Victoria region.
The following constraint set was invoked at 0305 hrs 12/11/2019.
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP
V-S-MNSP1
V-SA
VIC1-NSW1
Refer to AEMO Network Outage Scheduler (NOS) for further details
Manager NEM Real Time Operations
The Hazelwood - South Morang No 2 500 kV Line has been de-energised to manage voltages in the Victoria region.
The following constraint set was invoked at 0305 hrs 12/11/2019.
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP
V-S-MNSP1
V-SA
VIC1-NSW1
Refer to AEMO Network Outage Scheduler (NOS) for further details
Manager NEM Real Time Operations
71090GENERAL NOTICE11/11/2019 05:14:28 PM
Non-credible contingency event more likely to occur due to existence of abnormal conditions NSW region. Tuesday 12th November 2019.
AEMO ELECTRICITY MARKET NOTICE.
AEMO has identified that a non-credible contingency event is more likely to occur in the NSW region because of the existence of abnormal conditions, namely severe, extreme and catastrophic bushfire conditions forecast for Tuesday 12th November 2019.
As at the time of this notice the criteria for reclassification of any non-credible contingency event have not been met, however there is a possibility of bushfires impacting multiple transmission elements in NSW on Tuesday 12th November 2019.
Conditions can change rapidly and potentially impacted plant may change. Further notices will only be published to advise of any reclassification, or when the abnormal conditions have ceased to impact the likelihood of a non-credible event occurring.
Manager NEM Real Time Operations
AEMO has identified that a non-credible contingency event is more likely to occur in the NSW region because of the existence of abnormal conditions, namely severe, extreme and catastrophic bushfire conditions forecast for Tuesday 12th November 2019.
As at the time of this notice the criteria for reclassification of any non-credible contingency event have not been met, however there is a possibility of bushfires impacting multiple transmission elements in NSW on Tuesday 12th November 2019.
Conditions can change rapidly and potentially impacted plant may change. Further notices will only be published to advise of any reclassification, or when the abnormal conditions have ceased to impact the likelihood of a non-credible event occurring.
Manager NEM Real Time Operations
71089MARKET INTERVENTION11/11/2019 04:01:02 PM
Cancellation - AEMO Intervention Event - Intervention price dispatch intervals - Direction SA region 10/11/2019
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - Intervention price dispatch intervals - Direction SA region 10/11/2019
Refer Market Notices 71077 and 71078
The AEMO Intervention Event and all associated directions are cancelled from 1600 hrs 11/11/2019
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention price dispatch intervals - Direction SA region 10/11/2019
Refer Market Notices 71077 and 71078
The AEMO Intervention Event and all associated directions are cancelled from 1600 hrs 11/11/2019
Manager NEM Real Time Operations
71087MARKET INTERVENTION11/11/2019 08:00:59 PM
AEMO Intervention Event - Intervention price dispatch intervals - 11/11/2019
AEMO ELECTRICITY MARKET NOTICE.
AEMO Intervention Event - Intervention price dispatch intervals - 11/11/2019
Refer AEMO Electricity Market Notice no. 71086
An AEMO Intervention Event occurred when AEMO issued a direction to maintain the power system in a secure operating state.
The AEMO Intervention Event commenced in the 2005 hrs dispatch interval and is forecast to apply until 1630 hrs 12/11/2019.
AEMO declares all dispatch intervals during the AEMO Intervention Event to be intervention price dispatch intervals.
The direction is expected to affect dispatch quantities for intervention pricing purposes from the 0105 hrs dispatch interval on 12/11/2019.
Manager NEM Real Time Operations
AEMO Intervention Event - Intervention price dispatch intervals - 11/11/2019
Refer AEMO Electricity Market Notice no. 71086
An AEMO Intervention Event occurred when AEMO issued a direction to maintain the power system in a secure operating state.
The AEMO Intervention Event commenced in the 2005 hrs dispatch interval and is forecast to apply until 1630 hrs 12/11/2019.
AEMO declares all dispatch intervals during the AEMO Intervention Event to be intervention price dispatch intervals.
The direction is expected to affect dispatch quantities for intervention pricing purposes from the 0105 hrs dispatch interval on 12/11/2019.
Manager NEM Real Time Operations