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92477SETTLEMENTS RESIDUE17/11/2021 10:35:16 AM
[EventId:202111171035_NRM_QLD1_NSW1_started] NEGRES CONSTRAINT NRM_QLD1_NSW1 started operating from 17 November 2021 10:35
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1035 hrs on 17 November 2021
ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 17 November 2021.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the QLD to NSW directional interconnector.
The negative residue constraint set NRM_QLD1_NSW1 commenced operating from 1035 hrs on 17 November 2021.
This constraint set contains an equation with the following interconnectors on the LHS:
N-Q-MNSP1
NSW1-QLD1
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1035 hrs on 17 November 2021
ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 17 November 2021.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the QLD to NSW directional interconnector.
The negative residue constraint set NRM_QLD1_NSW1 commenced operating from 1035 hrs on 17 November 2021.
This constraint set contains an equation with the following interconnectors on the LHS:
N-Q-MNSP1
NSW1-QLD1
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
92475MARKET SYSTEMS17/11/2021 09:21:13 AM
CHG0071249 | Pre-Production | Urgent maintenance on MSATS - Enterprise MDM
Change Number: CHG0071249
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Expedited
Service/ Component: MSATS - Meter Data Management
Change Title: Urgent maintenance on MSATS - Enterprise MDM
Change Start Date & Time: 17/11/2021 13:00:00 AEST
Change End Date & Time: 17/11/2021 19:00:00 AEST
Outage Start Date & Time: 17/11/2021 13:00:00 AEST
Outage End Date & Time: 17/11/2021 14:30:00 AEST
Environment: Pre-Production
Participant Impact and Requirements: Please note that the below services may be impacted by this change:
Meter data ingestion
Support Information:
Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
Please refer to https://aemo.service-now.com/participantportal?id=pp_services_status for any
planned/unplanned maintenance activities .
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Expedited
Service/ Component: MSATS - Meter Data Management
Change Title: Urgent maintenance on MSATS - Enterprise MDM
Change Start Date & Time: 17/11/2021 13:00:00 AEST
Change End Date & Time: 17/11/2021 19:00:00 AEST
Outage Start Date & Time: 17/11/2021 13:00:00 AEST
Outage End Date & Time: 17/11/2021 14:30:00 AEST
Environment: Pre-Production
Participant Impact and Requirements: Please note that the below services may be impacted by this change:
Meter data ingestion
Support Information:
Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
Please refer to https://aemo.service-now.com/participantportal?id=pp_services_status for any
planned/unplanned maintenance activities .
92469RECLASSIFY CONTINGENCY17/11/2021 01:19:05 AM
Cancellation of a Non-Credible Contingency Event: Collinsville Nth-Clare Sth Tee King Creek 7128 132kV line and Strathmore-Clare South 7208 132kV line in QLD1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD1
Lines: Collinsville Nth-Clare Sth Tee King Creek 7128 132kV and Strathmore-Clare South 7208 132kV
Cancellation time: 17/11/2021 01:19
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 92460
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD1
Lines: Collinsville Nth-Clare Sth Tee King Creek 7128 132kV and Strathmore-Clare South 7208 132kV
Cancellation time: 17/11/2021 01:19
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 92460
Auto-generated on behalf of Manager NEM Real Time Operations
92468RECLASSIFY CONTINGENCY17/11/2021 01:19:05 AM
Cancellation of a Non-Credible Contingency Event: Collinsville North - Proserpine No.7125 132 kV line and Collinsville North - Proserpine No.7126 132 kV line in QLD1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD1
Lines: Collinsville North - Proserpine No.7125 132 kV and Collinsville North - Proserpine No.7126 132 kV
Cancellation time: 17/11/2021 01:19
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 92459
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD1
Lines: Collinsville North - Proserpine No.7125 132 kV and Collinsville North - Proserpine No.7126 132 kV
Cancellation time: 17/11/2021 01:19
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 92459
Auto-generated on behalf of Manager NEM Real Time Operations
92467RECLASSIFY CONTINGENCY17/11/2021 01:15:33 AM
Cancellation of a Non-Credible Contingency Event: Collinsville - Stoney Creek No.7306 132 kV line and Collinsville - Newlands No.7121 132 kV line in QLD1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD1
Lines: Collinsville - Stoney Creek No.7306 132 kV and Collinsville - Newlands No.7121 132 kV
Cancellation time: 17/11/2021 01:20
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 92457
Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD1
Lines: Collinsville - Stoney Creek No.7306 132 kV and Collinsville - Newlands No.7121 132 kV
Cancellation time: 17/11/2021 01:20
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 92457
Manager NEM Real Time Operations
92466RECLASSIFY CONTINGENCY16/11/2021 11:59:00 PM
Cancellation of a Non-Credible Contingency Event: Lismore - Dunoon 9U6 132kV line and Lismore - Dunoon 9U7 132kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Lismore - Dunoon 9U6 132kV and Lismore - Dunoon 9U7 132kV
Cancellation time: 16/11/2021 23:58
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 92464
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Lismore - Dunoon 9U6 132kV and Lismore - Dunoon 9U7 132kV
Cancellation time: 16/11/2021 23:58
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 92464
Auto-generated on behalf of Manager NEM Real Time Operations
92465GENERAL NOTICE16/11/2021 11:28:06 PM
Planned outage of Heywood No.2 500 kV busbar in the Victoria region on 17 November 2021
AEMO ELECTRICITY MARKET NOTICE
The Heywood No.2 500 kV busbar in Victoria Region is planned out of service on the following periods:
0600hrs to 0630hrs on 17/11/2021
1430hrs to 1500hrs on 17/11/2021
A credible contingency event during this planned outage could cause synchronous separation of the South Australia (SA) region from the rest of the NEM. If separation occurs, load may be interrupted due to the operation of the Automatic Under Frequency Load Shedding (AUFLS) scheme in SA.
The credible separation contingency is managed as follows:
When power transfer is from SA to Victoria (Vic), contingency lower FCAS will be sourced from SA.
When power transfer is from Vic to SA, due to the 47-52Hz island separation frequency band advised by the SA jurisdiction, contingency raise FCAS is not sourced in SA and the AUFLS scheme may respond to low frequency events.
Power transfer will be restricted on Victoria - South Australia interconnector (Heywood interconnector).
Forecast capacity reserves in the SA region are currently sufficient to meet electricity demand during the planned outage.
The following constraint sets have been invoked for this outage:
F-I-HYSE
I-VS_050
S-X_BC_CP
V-HYTX_M12
V-HY_500BUS
Refer AEMO Network Outage Schedule (NOS) for further details.
Manager NEM Real Time Operations
The Heywood No.2 500 kV busbar in Victoria Region is planned out of service on the following periods:
0600hrs to 0630hrs on 17/11/2021
1430hrs to 1500hrs on 17/11/2021
A credible contingency event during this planned outage could cause synchronous separation of the South Australia (SA) region from the rest of the NEM. If separation occurs, load may be interrupted due to the operation of the Automatic Under Frequency Load Shedding (AUFLS) scheme in SA.
The credible separation contingency is managed as follows:
When power transfer is from SA to Victoria (Vic), contingency lower FCAS will be sourced from SA.
When power transfer is from Vic to SA, due to the 47-52Hz island separation frequency band advised by the SA jurisdiction, contingency raise FCAS is not sourced in SA and the AUFLS scheme may respond to low frequency events.
Power transfer will be restricted on Victoria - South Australia interconnector (Heywood interconnector).
Forecast capacity reserves in the SA region are currently sufficient to meet electricity demand during the planned outage.
The following constraint sets have been invoked for this outage:
F-I-HYSE
I-VS_050
S-X_BC_CP
V-HYTX_M12
V-HY_500BUS
Refer AEMO Network Outage Schedule (NOS) for further details.
Manager NEM Real Time Operations
92464RECLASSIFY CONTINGENCY16/11/2021 09:56:35 PM
Reclassification of a Non-Credible Contingency Event: Lismore - Dunoon 9U6 132kV line and Lismore - Dunoon 9U7 132kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: NSW1
Lines: Lismore - Dunoon 9U6 132kV and Lismore - Dunoon 9U7 132kV
Duration: 16/11/2021 21:56 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: NSW1
Lines: Lismore - Dunoon 9U6 132kV and Lismore - Dunoon 9U7 132kV
Duration: 16/11/2021 21:56 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
92463MARKET SYSTEMS16/11/2021 08:41:25 PM
CHG0071106 | Production | EMMS Production Systems will be transferred to the alternative site to support maintenance activities
Change Number: CHG0071106
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Electricity Market Management System
Change Title: EMMS Production Systems will be transferred to the alternative site to support maintenance activities
Change Start Date & Time: 22/11/2021 09:00:00 AEST
Change End Date & Time: 23/11/2021 17:00:00 AEST
Outage Start Date & Time: 23/11/2021 13:30:00 AEST
Outage End Date & Time: 23/11/2021 13:33:00 AEST
Environment: Production
Participant Impact and Requirements: The maintenance activity is not expected to have any impact however delays to Dispatch cycles and bid submission are possible during the outage window on Tuesday 23rd November around 13:30 AEST
Support Information:
Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
Please refer to https://aemo.service-now.com/participantportal?id=pp_services_status for any
planned/unplanned maintenance activities .
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Electricity Market Management System
Change Title: EMMS Production Systems will be transferred to the alternative site to support maintenance activities
Change Start Date & Time: 22/11/2021 09:00:00 AEST
Change End Date & Time: 23/11/2021 17:00:00 AEST
Outage Start Date & Time: 23/11/2021 13:30:00 AEST
Outage End Date & Time: 23/11/2021 13:33:00 AEST
Environment: Production
Participant Impact and Requirements: The maintenance activity is not expected to have any impact however delays to Dispatch cycles and bid submission are possible during the outage window on Tuesday 23rd November around 13:30 AEST
Support Information:
Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
Please refer to https://aemo.service-now.com/participantportal?id=pp_services_status for any
planned/unplanned maintenance activities .