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112074RECLASSIFY CONTINGENCY08/12/2023 10:50:21 AM
Reclassification of non-credible contingency event due to existence of widespread abnormal conditions - SA region.
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 weather in the SA region.
AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.
AEMO has taken the following action to maintain power system security at 1050 hrs 08/12/2023.
Constraint set invoked: I-VS_250
Duration: 1050 hrs 08/12/2023. until further notice
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 weather in the SA region.
AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.
AEMO has taken the following action to maintain power system security at 1050 hrs 08/12/2023.
Constraint set invoked: I-VS_250
Duration: 1050 hrs 08/12/2023. until further notice
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
112067PRICES SUBJECT TO REVIEW08/12/2023 10:30:24 AM
[EventId:202312081035_review] Prices for interval 08-Dec-2023 10:35 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1030 hrs on 8 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Dec-2023 10:35.
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 1030 hrs on 8 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Dec-2023 10:35.
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.
112066PRICES SUBJECT TO REVIEW08/12/2023 10:25:31 AM
[EventId:202312081030_review] Prices for interval 08-Dec-2023 10:30 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1025 hrs on 8 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Dec-2023 10:30.
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 1025 hrs on 8 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Dec-2023 10:30.
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.
112064PRICES SUBJECT TO REVIEW08/12/2023 10:20:28 AM
[EventId:202312081025_review] Prices for interval 08-Dec-2023 10:25 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1020 hrs on 8 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Dec-2023 10:25.
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 1020 hrs on 8 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Dec-2023 10:25.
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.
112062PRICES SUBJECT TO REVIEW08/12/2023 10:15:22 AM
[EventId:202312081020_review] Prices for interval 08-Dec-2023 10:20 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1015 hrs on 8 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Dec-2023 10:20.
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 1015 hrs on 8 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Dec-2023 10:20.
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.
112061PRICES SUBJECT TO REVIEW08/12/2023 10:10:18 AM
[EventId:202312081015_review] Prices for interval 08-Dec-2023 10:15 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1010 hrs on 8 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Dec-2023 10:15.
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 1010 hrs on 8 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Dec-2023 10:15.
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.
112060PRICES SUBJECT TO REVIEW08/12/2023 10:05:21 AM
[EventId:202312081010_review] Prices for interval 08-Dec-2023 10:10 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1005 hrs on 8 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Dec-2023 10:10.
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 1005 hrs on 8 December 2023
PRICES ARE SUBJECT TO REVIEW for trading interval 08-Dec-2023 10:10.
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.
112059RECLASSIFY CONTINGENCY08/12/2023 09:52:08 AM
Reclassification of a Non-Credible Contingency Event: Loss of Sheffield 220 kV switchyard (all 220 kV buses) in Tas due to planned work
AEMO ELECTRICITY MARKET NOTICE.
Reclassification of a non-credible contingency event as a credible contingency event due to planned work.
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:TAS
Plant: Sheffield 220 kV switchyard (all 220 kV buses)
Duration: 08/12/2023 : 1000 hrs until further notice
Constraint set(s) invoked: T:SH_220_N-2
Manager NEM Real Time Operations
Reclassification of a non-credible contingency event as a credible contingency event due to planned work.
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:TAS
Plant: Sheffield 220 kV switchyard (all 220 kV buses)
Duration: 08/12/2023 : 1000 hrs until further notice
Constraint set(s) invoked: T:SH_220_N-2
Manager NEM Real Time Operations
112056RECLASSIFY CONTINGENCY08/12/2023 11:09:48 AM
Reclassification of a Non-Credible Contingency Event: South East - Tailem Bend No.1 and No.2 275 kV lines 275kV lines in SA due to severe weather warning.
AEMO ELECTRICITY MARKET NOTICE.
Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.
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: SA
Lines: South East - Tailem Bend No.1 and No.2 275 kV lines
Duration: 08/12/2023 11:10 hrs until further notice
Constraint set(s) invoked: S-SETB_N-2
Manager NEM Real Time Operations
Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.
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: SA
Lines: South East - Tailem Bend No.1 and No.2 275 kV lines
Duration: 08/12/2023 11:10 hrs until further notice
Constraint set(s) invoked: S-SETB_N-2
Manager NEM Real Time Operations