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123615POWER SYSTEM EVENTS23/01/2025 03:09:25 AM
Update - Non-credible contingency event - NSW region - 23/01/2025
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW region - 23/01/2025
Refer AEMO Electricity Market Notice 123613
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Region: NSW
Elements: Kempsey - Macksville 9W5 and the Kempsey - Raleigh 9W2 132kV Lines
Duration: 0250 hrs 23/01/2025 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
Update - Non-credible contingency event - NSW region - 23/01/2025
Refer AEMO Electricity Market Notice 123613
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Region: NSW
Elements: Kempsey - Macksville 9W5 and the Kempsey - Raleigh 9W2 132kV Lines
Duration: 0250 hrs 23/01/2025 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
123613POWER SYSTEM EVENTS23/01/2025 03:02:44 AM
Non-credible contingency event - NSW region - 23/01/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 23/01/2025
At 0240 hrs the Kempsey - Macksville 9W5 and the Kempsey - Raleigh 9W2 132kV Lines tripped and auto reclosed.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - NSW region - 23/01/2025
At 0240 hrs the Kempsey - Macksville 9W5 and the Kempsey - Raleigh 9W2 132kV Lines tripped and auto reclosed.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
123606SETTLEMENTS RESIDUE22/01/2025 10:00:26 PM
[EventId:202501222200_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 22 January 2025 22:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 2200 hrs on 22 January 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 22 January 2025.
Refer to market notice: 123585
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.
The negative residue constraint NRM_NSW1_VIC1 ceased operating at 2200 hrs on 22 January 2025.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 2200 hrs on 22 January 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 22 January 2025.
Refer to market notice: 123585
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to VIC directional interconnector.
The negative residue constraint NRM_NSW1_VIC1 ceased operating at 2200 hrs on 22 January 2025.
This is an AEMO autogenerated Market Notice.
123601INTER-REGIONAL TRANSFER22/01/2025 08:11:14 PM
Cancellation -Inter-regional transfer limit variation - Constraint invocation to manage Power System Security in NSW region - 22/01/2025
AEMO ELECTRICITY MARKET NOTICE
Cancellation -Inter-regional transfer limit variation - Constraint invocation to manage Power System Security in NSW region - 22/01/2025
Refer to MN 123588
In order to maintain the power system in a secure operating state in the NSW region (Northern NSW) ,
AEMO has invoked constraint set #N-Q-MNSP1_E from 1720 hrs until 1845 hs 22/01/2025.
This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1
Manager NEM Real Time Operations
Cancellation -Inter-regional transfer limit variation - Constraint invocation to manage Power System Security in NSW region - 22/01/2025
Refer to MN 123588
In order to maintain the power system in a secure operating state in the NSW region (Northern NSW) ,
AEMO has invoked constraint set #N-Q-MNSP1_E from 1720 hrs until 1845 hs 22/01/2025.
This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1
Manager NEM Real Time Operations
123598RESERVE NOTICE22/01/2025 07:44:15 PM
Cancellation of Actual (LOR2) condition in the QLD region - 22/01/2025
AEMO ELECTRICITY MARKET NOTICE
Cancellation of Actual (LOR2) condition in the QLD region - 22/01/2025
The Actual LOR2 Condition in the QLD Region advised in AEMO Electricity Market Notice No.123594 is cancelled at 1945 hrs 22/01/2025.
Manager NEM Real Time Operations
Cancellation of Actual (LOR2) condition in the QLD region - 22/01/2025
The Actual LOR2 Condition in the QLD Region advised in AEMO Electricity Market Notice No.123594 is cancelled at 1945 hrs 22/01/2025.
Manager NEM Real Time Operations
123597INTER-REGIONAL TRANSFER22/01/2025 07:53:16 PM
Inter-regional transfer limit variation -Lismore No1 SVC - NSW region - 22/01/2025
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Lismore No1 SVC - NSW region - 22/01/2025
A planned outage of Lismore No1 SVC in the NSW region was scheduled from 0620 hrs 08/01/2025 to 1600 hrs 24/01/2025.
The outage has been completed and Lismore No1 SVC returned to service at 1900 hrs 22/01/2025
Constraint set(s) revoked: N-LS_VC1
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Lismore No1 SVC - NSW region - 22/01/2025
A planned outage of Lismore No1 SVC in the NSW region was scheduled from 0620 hrs 08/01/2025 to 1600 hrs 24/01/2025.
The outage has been completed and Lismore No1 SVC returned to service at 1900 hrs 22/01/2025
Constraint set(s) revoked: N-LS_VC1
Manager NEM Real Time Operations
123596SETTLEMENTS RESIDUE22/01/2025 07:30:28 PM
[EventId:202501221930_NRM_NSW1_QLD1_stopped] NEGRES CONSTRAINT NRM_NSW1_QLD1 ceased operating from 22 January 2025 19:30
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1930 hrs on 22 January 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to QLD - 22 January 2025.
Refer to market notice: 123591
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to QLD directional interconnector.
The negative residue constraint NRM_NSW1_QLD1 ceased operating at 1930 hrs on 22 January 2025.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1930 hrs on 22 January 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to QLD - 22 January 2025.
Refer to market notice: 123591
AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the NSW to QLD directional interconnector.
The negative residue constraint NRM_NSW1_QLD1 ceased operating at 1930 hrs on 22 January 2025.
This is an AEMO autogenerated Market Notice.
123594RESERVE NOTICE22/01/2025 06:43:09 PM
Actual Lack Of Reserve Level 2 (LOR2) in the QLD region - 22/01/2025
AEMO ELECTRICITY MARKET NOTICE
Actual Lack Of Reserve Level 2 (LOR2) in the QLD region - 22/01/2025
An Actual LOR2 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the QLD region from 1830 hrs.
The Actual LOR2 condition is forecast to exist until 1900 hrs.
The forecast capacity reserve requirement is 515 MW.
The minimum capacity reserve available is 395 MW.
AEMO is seeking an immediate market response.
An insufficient market response may require AEMO to implement an AEMO intervention event.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 2 (LOR2) in the QLD region - 22/01/2025
An Actual LOR2 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the QLD region from 1830 hrs.
The Actual LOR2 condition is forecast to exist until 1900 hrs.
The forecast capacity reserve requirement is 515 MW.
The minimum capacity reserve available is 395 MW.
AEMO is seeking an immediate market response.
An insufficient market response may require AEMO to implement an AEMO intervention event.
Manager NEM Real Time Operations
123591SETTLEMENTS RESIDUE22/01/2025 06:00:29 PM
[EventId:202501221800_NRM_NSW1_QLD1_started] NEGRES CONSTRAINT NRM_NSW1_QLD1 started operating from 22 January 2025 18:00
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1800 hrs on 22 January 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to QLD - 22 January 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the NSW to QLD directional interconnector.
The negative residue constraint set NRM_NSW1_QLD1 commenced operating from 1800 hrs on 22 January 2025.
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 1800 hrs on 22 January 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to QLD - 22 January 2025.
Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the NSW to QLD directional interconnector.
The negative residue constraint set NRM_NSW1_QLD1 commenced operating from 1800 hrs on 22 January 2025.
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.