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116579RECLASSIFY CONTINGENCY10/05/2024 05:54:50 PM
Cancellation of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Cancellation time: 10/05/2024 17:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 116578
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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Cancellation time: 10/05/2024 17:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 116578
Auto-generated on behalf of Manager NEM Real Time Operations
116578RECLASSIFY CONTINGENCY10/05/2024 04:51:05 PM
Reclassification of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 10/05/2024 16:51 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 10/05/2024 16:51 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
116572RECLASSIFY CONTINGENCY10/05/2024 10:13:53 AM
Reclassification of non-credible contingency event due to existence of widespread abnormal condition/s - NEM regions.
AEMO ELECTRICITY MARKET NOTICE.
AEMO has identified that a non-credible contingency event impacting the power system is more likely to occur and is considered reasonably possible because of the existence of widespread abnormal conditions namely Severe Space Weather Watch in the NEM regions.
AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.
Need for further measures is being monitored and further measures may be implemented in line with the Power System Security Guidelines (SO_OP_3715).
Manager NEM Real Time Operations
AEMO has identified that a non-credible contingency event impacting the power system is more likely to occur and is considered reasonably possible because of the existence of widespread abnormal conditions namely Severe Space Weather Watch in the NEM regions.
AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.
Need for further measures is being monitored and further measures may be implemented in line with the Power System Security Guidelines (SO_OP_3715).
Manager NEM Real Time Operations
116568RECLASSIFY CONTINGENCY10/05/2024 06:01:54 PM
Cancellation - Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to planned outage : Ross 275 kV SVC and Ross 275/132 kV No. 4 transformer - Qld region.
AEMO ELECTRICITY MARKET NOTICE.
Cancellation - Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to planned outage.
AEMO considers the occurrence of a non-credible contingency event due to planned outage advised in AEMO Electricity Market Notice 116557 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Region: Qld
Elements: Ross 275 kV SVC and Ross 275/132 kV No. 4 transformer
Cancellation time: 1800 hrs 10/05/2024
Constraint set(s) invoked:
Nil
Manager NEM Real Time Operations
Cancellation - Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to planned outage.
AEMO considers the occurrence of a non-credible contingency event due to planned outage advised in AEMO Electricity Market Notice 116557 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Region: Qld
Elements: Ross 275 kV SVC and Ross 275/132 kV No. 4 transformer
Cancellation time: 1800 hrs 10/05/2024
Constraint set(s) invoked:
Nil
Manager NEM Real Time Operations
116557RECLASSIFY CONTINGENCY09/05/2024 01:58:22 PM
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event: Ross 275 kV SVC and Ross 275/132 kV No. 4 transformer - Qld region.
AEMO ELECTRICITY MARKET NOTICE.
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event. AEMO considers the simultaneous trip of the following elements to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: Qld
Elements: Ross 275 kV SVC and Ross 275/132 kV No. 4 transformer
Duration: 1400 hrs 09/05/2024 until further notice
Constraint set(s) invoked:
Nil
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event. AEMO considers the simultaneous trip of the following elements to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: Qld
Elements: Ross 275 kV SVC and Ross 275/132 kV No. 4 transformer
Duration: 1400 hrs 09/05/2024 until further notice
Constraint set(s) invoked:
Nil
Manager NEM Real Time Operations
116543INTER-REGIONAL TRANSFER08/05/2024 03:50:23 PM
Inter-regional transfer limit variation - Blyth West to Munno Para 275 kV line - SA region - 08/05/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Blyth West to Munno Para 275 kV line - SA region - 08/05/2024
At 1536 hrs 08/05/2024 there was an unplanned outage of Blyth West to Munno Para 275 kV line.
The following constraint set(s) invoked at 1545 hrs 08/05/2024
S-X_BGBW+BWMP
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Blyth West to Munno Para 275 kV line - SA region - 08/05/2024
At 1536 hrs 08/05/2024 there was an unplanned outage of Blyth West to Munno Para 275 kV line.
The following constraint set(s) invoked at 1545 hrs 08/05/2024
S-X_BGBW+BWMP
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
116533PRICES SUBJECT TO REVIEW08/05/2024 12:55:16 PM
[EventId:202405081300_review] Prices for interval 08-May-2024 13:00 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1255 hrs on 8 May 2024
PRICES ARE SUBJECT TO REVIEW for trading interval 08-May-2024 13:00.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1255 hrs on 8 May 2024
PRICES ARE SUBJECT TO REVIEW for trading interval 08-May-2024 13:00.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
116532PRICES SUBJECT TO REVIEW08/05/2024 12:50:21 PM
[EventId:202405081255_review] Prices for interval 08-May-2024 12:55 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1250 hrs on 8 May 2024
PRICES ARE SUBJECT TO REVIEW for trading interval 08-May-2024 12:55.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1250 hrs on 8 May 2024
PRICES ARE SUBJECT TO REVIEW for trading interval 08-May-2024 12:55.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
116530PRICES SUBJECT TO REVIEW08/05/2024 12:45:23 PM
[EventId:202405081250_review] Prices for interval 08-May-2024 12:50 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1245 hrs on 8 May 2024
PRICES ARE SUBJECT TO REVIEW for trading interval 08-May-2024 12:50.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1245 hrs on 8 May 2024
PRICES ARE SUBJECT TO REVIEW for trading interval 08-May-2024 12:50.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.