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112475RECLASSIFY CONTINGENCY17/12/2023 08:49:37 PM
Cancellation of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV 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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 17/12/2023 20:49
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 112474
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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Cancellation time: 17/12/2023 20:49
Constraint set(s) revoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Refer AEMO Electricity Market Notice 112474
Auto-generated on behalf of Manager NEM Real Time Operations
112474RECLASSIFY CONTINGENCY17/12/2023 06:47:01 PM
Reclassification of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV 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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 17/12/2023 18:46 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
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: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 17/12/2023 18:46 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
112470MARKET INTERVENTION17/12/2023 02:40:23 PM
Update - Possible intervention to manage power system security in SA region
AEMO ELECTRICITY MARKET NOTICE
Possible intervention to manage power system security in SA region
The synchronous generating units currently expected to be synchronised in SA from 0100 hrs 18/12/2023 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1700 hrs 17/12/2023, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
Possible intervention to manage power system security in SA region
The synchronous generating units currently expected to be synchronised in SA from 0100 hrs 18/12/2023 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1700 hrs 17/12/2023, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
112469MARKET INTERVENTION17/12/2023 05:02:10 PM
Direction - SA region 17/12/2023
AEMO ELECTRICITY MARKET NOTICE.
Direction - SA region 17/12/2023
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).
The direction was necessary to maintain the power system in a secure operating state.
AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.
The issue of the direction commences an AEMO intervention event. AEMO declares all trading intervals during the event to be intervention trading intervals, commencing from the interval ending 1700 hrs on 17/12/2023.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Direction - SA region 17/12/2023
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).
The direction was necessary to maintain the power system in a secure operating state.
AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.
The issue of the direction commences an AEMO intervention event. AEMO declares all trading intervals during the event to be intervention trading intervals, commencing from the interval ending 1700 hrs on 17/12/2023.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
112467MARKET INTERVENTION17/12/2023 02:35:23 PM
Possible intervention to manage power system security in SA region
AEMO ELECTRICITY MARKET NOTICE
Possible intervention to manage power system security in SA region
The synchronous generating units currently expected to be synchronised in SA from 1700 hrs 18/12/2023 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1700 hrs 17/12/2023, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
Possible intervention to manage power system security in SA region
The synchronous generating units currently expected to be synchronised in SA from 1700 hrs 18/12/2023 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1700 hrs 17/12/2023, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.
Manager NEM Real Time Operations
112465PRICES UNCHANGED17/12/2023 02:02:39 PM
[EventId:202312171340_confirmed] Prices for interval 17-Dec-2023 13:40 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1400 hrs on 17 December 2023
PRICES ARE NOW CONFIRMED for trading interval 17-Dec-2023 13:40.
In accordance with Market Notice 112455 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1400 hrs on 17 December 2023
PRICES ARE NOW CONFIRMED for trading interval 17-Dec-2023 13:40.
In accordance with Market Notice 112455 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
112464PRICES UNCHANGED17/12/2023 02:06:00 PM
[EventId:202312171400_confirmed] Prices for interval 17-Dec-2023 14:00 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1400 hrs on 17 December 2023
PRICES ARE NOW CONFIRMED for trading interval 17-Dec-2023 14:00.
In accordance with Market Notice 112459 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1400 hrs on 17 December 2023
PRICES ARE NOW CONFIRMED for trading interval 17-Dec-2023 14:00.
In accordance with Market Notice 112459 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
112463PRICES UNCHANGED17/12/2023 02:04:51 PM
[EventId:202312171355_confirmed] Prices for interval 17-Dec-2023 13:55 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1400 hrs on 17 December 2023
PRICES ARE NOW CONFIRMED for trading interval 17-Dec-2023 13:55.
In accordance with Market Notice 112458 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1400 hrs on 17 December 2023
PRICES ARE NOW CONFIRMED for trading interval 17-Dec-2023 13:55.
In accordance with Market Notice 112458 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
112462PRICES UNCHANGED17/12/2023 02:03:41 PM
[EventId:202312171350_confirmed] Prices for interval 17-Dec-2023 13:50 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1400 hrs on 17 December 2023
PRICES ARE NOW CONFIRMED for trading interval 17-Dec-2023 13:50.
In accordance with Market Notice 112457 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1400 hrs on 17 December 2023
PRICES ARE NOW CONFIRMED for trading interval 17-Dec-2023 13:50.
In accordance with Market Notice 112457 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.