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75698PRICES SUBJECT TO REVIEW12/05/2020 12:20:13 PM
[EventId:202005121225_review] Prices for interval 12-May-2020 12:25 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1220 hrs on 12 May 2020
PRICES ARE SUBJECT TO REVIEW for dispatch interval 12-May-2020 12:25.
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 1220 hrs on 12 May 2020
PRICES ARE SUBJECT TO REVIEW for dispatch interval 12-May-2020 12:25.
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.
75697MARKET SYSTEMS11/05/2020 02:21:24 PM
CHG0059225 - Planned System Maintenance - Electricity MMS PreProduction
Change Number: CHG0059225
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Electricity Market Management System
Change Title: Planned System Maintenance - Electricity MMS PreProduction
Change Start Date & Time: 13/05/2020 10:00:00 AEST
Change End Date & Time: 13/05/2020 17:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Change Description:
Maintenance is performed on the EMMS PreProduction environment.
Environment: Pre-Production
Participant Impact and Requirements:
The maintenance activity is not expected to have any impact on the pre-production environment, and therefore if any issue is identified after the maintenance activity it should be reported to AEMO Support Hub.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Electricity Market Management System
Change Title: Planned System Maintenance - Electricity MMS PreProduction
Change Start Date & Time: 13/05/2020 10:00:00 AEST
Change End Date & Time: 13/05/2020 17:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Change Description:
Maintenance is performed on the EMMS PreProduction environment.
Environment: Pre-Production
Participant Impact and Requirements:
The maintenance activity is not expected to have any impact on the pre-production environment, and therefore if any issue is identified after the maintenance activity it should be reported to AEMO Support Hub.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
75696INTER-REGIONAL TRANSFER11/05/2020 05:45:22 AM
Cancellation - Inter-regional transfer limit variation: Hazelwood - South Morang No.1 500 kV Line (Vic) - Voltage Control
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Inter-regional transfer limit variation: Hazelwood - South Morang No.1 500 kV Line (Vic) - Voltage Control
Refer AEMO Electricity Market Notice 75629
The Hazelwood - South Morang No.1 500 kV Line has been returned to service.
The following constraint set was revoked at 0545 hrs 11/05/2020.
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1
Manager NEM Real Time Operations
Cancellation - Inter-regional transfer limit variation: Hazelwood - South Morang No.1 500 kV Line (Vic) - Voltage Control
Refer AEMO Electricity Market Notice 75629
The Hazelwood - South Morang No.1 500 kV Line has been returned to service.
The following constraint set was revoked at 0545 hrs 11/05/2020.
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1
Manager NEM Real Time Operations
75695RECLASSIFY CONTINGENCY10/05/2020 06:22:41 PM
Cancellation - Reclassification of a Non Credible Contingency Event: Loss of multiple generating units NSW region - 10/05/2020
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Reclassification of a Non Credible Contingency Event: Loss of multiple generating units NSW region - 10/05/2020
Refer AEMO Electricity Market Notice 75694
AEMO considers the simultaneous trip of the generating units at Eraring Power Station is no longer reasonably possible. Accordingly, its classification has reverted to a non-credible contingency event.
Constraint Set invoked:
F-I_MG_1000 from 1715 hrs to 1755 hrs 10/05/2020
F-I_MG_850 from 1755 hrs to 1815 hrs 10/05/2020
Manager NEM Real Time Operations
Cancellation - Reclassification of a Non Credible Contingency Event: Loss of multiple generating units NSW region - 10/05/2020
Refer AEMO Electricity Market Notice 75694
AEMO considers the simultaneous trip of the generating units at Eraring Power Station is no longer reasonably possible. Accordingly, its classification has reverted to a non-credible contingency event.
Constraint Set invoked:
F-I_MG_1000 from 1715 hrs to 1755 hrs 10/05/2020
F-I_MG_850 from 1755 hrs to 1815 hrs 10/05/2020
Manager NEM Real Time Operations
75694RECLASSIFY CONTINGENCY10/05/2020 06:01:16 PM
Update - Reclassification of a Non Credible Contingency Event: Loss of multiple generating units NSW region - 10/05/2020
AEMO ELECTRICITY MARKET NOTICE
Update - Reclassification of a Non Credible Contingency Event: Loss of multiple generating units NSW region - 10/05/2020
Refer AEMO Electricity Market Notice 75693
Due to a control issue AEMO has reclassified the simultaneous loss of multiple generating units at Eraring Power Station as a credible contingency event.
Constraint Sets invoked:
F-I_MG_1000 from 1715 hrs to 1755 hrs 10/05/2020
F-I_MG_850 from 1755 hrs 10/05/2020
Manager NEM Real Time Operations
Update - Reclassification of a Non Credible Contingency Event: Loss of multiple generating units NSW region - 10/05/2020
Refer AEMO Electricity Market Notice 75693
Due to a control issue AEMO has reclassified the simultaneous loss of multiple generating units at Eraring Power Station as a credible contingency event.
Constraint Sets invoked:
F-I_MG_1000 from 1715 hrs to 1755 hrs 10/05/2020
F-I_MG_850 from 1755 hrs 10/05/2020
Manager NEM Real Time Operations
75693RECLASSIFY CONTINGENCY10/05/2020 05:20:01 PM
Reclassification of a Non Credible Contingency Event: Loss of multiple generating units NSW region - 10/05/2020
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non Credible Contingency Event: Loss of multiple generating units NSW region - 10/05/2020
Due to a control issue AEMO has reclassified the simultaneous loss of multiple generating units at Eraring Power Station as a credible contingency event.
Constraint Set invoked: F-I_MG_1000 from 1715 hrs 10/05/2020.
Manager NEM Real Time Operations
Reclassification of a Non Credible Contingency Event: Loss of multiple generating units NSW region - 10/05/2020
Due to a control issue AEMO has reclassified the simultaneous loss of multiple generating units at Eraring Power Station as a credible contingency event.
Constraint Set invoked: F-I_MG_1000 from 1715 hrs 10/05/2020.
Manager NEM Real Time Operations
75692INTER-REGIONAL TRANSFER10/05/2020 03:47:44 AM
Inter-Regional Transfer limit variation - Directlink - NSW Region
AEMO ELECTRICITY MARKET NOTICE
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No 3 Leg of Directlink
The following constraint set was invoked at 0345 hrs 10/05/2020.
N-X_MBTE_2
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No 3 Leg of Directlink
The following constraint set was invoked at 0345 hrs 10/05/2020.
N-X_MBTE_2
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
75691RECLASSIFY CONTINGENCY09/05/2020 10:14:10 PM
Cancellation of a Non-Credible Contingency Event: Bulli Creek - Dumaresq 8L 330KV line and Bulli Creek - Dumaresq 8M 330KV 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: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV
Cancellation time: 09/05/2020 22:14
Constraint set(s) revoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1
Refer AEMO Electricity Market Notice 75676
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: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV
Cancellation time: 09/05/2020 22:14
Constraint set(s) revoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1
Refer AEMO Electricity Market Notice 75676
Auto-generated on behalf of Manager NEM Real Time Operations
75690RECLASSIFY CONTINGENCY09/05/2020 09:54:13 PM
Cancellation of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV 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: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Cancellation time: 09/05/2020 21:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 75688
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: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Cancellation time: 09/05/2020 21:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 75688
Auto-generated on behalf of Manager NEM Real Time Operations