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125519MARKET SYSTEMS11/03/2025 10:38:45 AM
Inital - CHG0101808 - Pre-production EMMS database Maintainence activity
Change Number: CHG0101808
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: EMMS - Data Store
Change Title: Pre-production EMMS database Maintainence activity
Change Start Date & Time: 11/03/2025 01:00:00
Change End Date & Time: 19/03/2025 17:00:00
Outage Start Date & Time: 13/03/2025 12:00:00
Outage End Date & Time: 13/03/2025 15:00:00
Environment: Pre-Production
Participant Impact and Requirements: The Electricity Market Management System (EMMS) , Gas Supply Hub (GSH) and FPP Pre-Production environment will be unavailable during the outage window.
Support Information:
Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
Please refer to https://aemo.service-now.com/participantportal?id=pp_services_status for any planned/unplanned maintenance activities .
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: EMMS - Data Store
Change Title: Pre-production EMMS database Maintainence activity
Change Start Date & Time: 11/03/2025 01:00:00
Change End Date & Time: 19/03/2025 17:00:00
Outage Start Date & Time: 13/03/2025 12:00:00
Outage End Date & Time: 13/03/2025 15:00:00
Environment: Pre-Production
Participant Impact and Requirements: The Electricity Market Management System (EMMS) , Gas Supply Hub (GSH) and FPP Pre-Production environment will be unavailable during the outage window.
Support Information:
Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
Please refer to https://aemo.service-now.com/participantportal?id=pp_services_status for any planned/unplanned maintenance activities .
125517POWER SYSTEM EVENTS11/03/2025 10:05:23 AM
Non-credible contingency event - SA region - 11/03/2025
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - SA region - 11/03/2025
At 0917 hrs the Penola West - South East 132 kV line and the Kincraig - Penola West 132 kV line tripped.
AEMO did not instruct load shedding.
Approximately 3 MW of electrical load has been disconnected.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - SA region - 11/03/2025
At 0917 hrs the Penola West - South East 132 kV line and the Kincraig - Penola West 132 kV line tripped.
AEMO did not instruct load shedding.
Approximately 3 MW of electrical load has been disconnected.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
125516SETTLEMENTS RESIDUE11/03/2025 09:30:23 AM
[EventId:202503110930_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 11 March 2025 09:30
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0930 hrs on 11 March 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 11 March 2025.
Refer to market notice: 125514
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 0930 hrs on 11 March 2025.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 0930 hrs on 11 March 2025
CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 11 March 2025.
Refer to market notice: 125514
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 0930 hrs on 11 March 2025.
This is an AEMO autogenerated Market Notice.
125514SETTLEMENTS RESIDUE11/03/2025 08:30:33 AM
[EventId:202503110830_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 11 March 2025 08:30
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0830 hrs on 11 March 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 11 March 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 VIC directional interconnector.
The negative residue constraint set NRM_NSW1_VIC1 commenced operating from 0830 hrs on 11 March 2025.
This constraint set contains an equation with the following interconnectors on the LHS:
VIC1-NSW1
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 0830 hrs on 11 March 2025
ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 11 March 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 VIC directional interconnector.
The negative residue constraint set NRM_NSW1_VIC1 commenced operating from 0830 hrs on 11 March 2025.
This constraint set contains an equation with the following interconnectors on the LHS:
VIC1-NSW1
The RHS of the constraint equation may be adjusted to manage residues.
This is an AEMO autogenerated Market Notice.
125452RESERVE NOTICE09/03/2025 08:16:22 PM
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 09/03/2025
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 125446 is cancelled at 2015 hrs 09/03/2025.
Manager NEM Real Time Operations
The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 125446 is cancelled at 2015 hrs 09/03/2025.
Manager NEM Real Time Operations
125446RESERVE NOTICE09/03/2025 07:11:28 PM
PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region on 09/03/2025
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following Period:
[1.] From 1930 hrs 09/03/2025 to 2030 hrs 09/03/2025.
The forecast capacity reserve requirement is 650 MW.
The minimum capacity reserve available is 600 MW.
Manager NEM Real Time Operations
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following Period:
[1.] From 1930 hrs 09/03/2025 to 2030 hrs 09/03/2025.
The forecast capacity reserve requirement is 650 MW.
The minimum capacity reserve available is 600 MW.
Manager NEM Real Time Operations
125442ADMINISTERED PRICE CAP09/03/2025 06:54:53 PM
Update - AEMO market notice 125439 was published in error: AP STARTED for ENERGY in SA1 at 09 March 2025 17:55
AEMO ELECTRICITY MARKET NOTICE
Refer market notice 125439 and 125440
AEMO confirms that market notice 125439 was published in error.
An ADMINISTERED PRICE PERIOD has NOT been triggered in SA1 region.
Manager NEM Real Time Operations
Refer market notice 125439 and 125440
AEMO confirms that market notice 125439 was published in error.
An ADMINISTERED PRICE PERIOD has NOT been triggered in SA1 region.
Manager NEM Real Time Operations
125440ADMINISTERED PRICE CAP09/03/2025 06:28:14 PM
AEMO market notice 125439 was published in error: AP STARTED for ENERGY in SA1 at 09 March 2025 17:55
AEMO ELECTRICITY MARKET NOTICE
Refer market notice 125439
AEMO believes market notice 125439 was published in error.
We believe an ADMINISTERED PRICE PERIOD has NOT been triggered in SA1 region.
AEMO is currently reviewing the event and will update the market as soon as possible.
Issued by Australian Energy Market Operator Ltd at 1820 hrs on 09 March 2025
Manager NEM Real Time Operations
Refer market notice 125439
AEMO believes market notice 125439 was published in error.
We believe an ADMINISTERED PRICE PERIOD has NOT been triggered in SA1 region.
AEMO is currently reviewing the event and will update the market as soon as possible.
Issued by Australian Energy Market Operator Ltd at 1820 hrs on 09 March 2025
Manager NEM Real Time Operations
125439ADMINISTERED PRICE CAP09/03/2025 05:55:23 PM
[EventId:204] AP STARTED for ENERGY in SA1 at 09 March 2025 17:55
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1755 hrs on 09 March 2025
ADMINISTERED PRICE PERIOD DECLARED in SA1 region.
AEMO has determined that the rolling sum of the uncapped spot prices for the SA1 region over the previous 2016 trading intervals has exceeded the cumulative price threshold (CPT) of $1,573,700.00.
In accordance with Clause 3.14.2(b) of the National Electricity Rules, AEMO has determined that an administered price period will commence at the trading interval starting 1805 hrs on 09 March 2025 and will continue through to the end of that trading day.
An administered price cap (APC) of 600 $/MWh will apply to all trading intervals during this administered price period. This APC will apply to spot prices and to all market ancillary service prices in the SA1 region.
An administered floor price (AFP) of -600 $/MWh will apply to spot prices.
AEMO will continue to monitor the rolling sum of the uncapped spot prices and issue further Market Notices as required.
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1755 hrs on 09 March 2025
ADMINISTERED PRICE PERIOD DECLARED in SA1 region.
AEMO has determined that the rolling sum of the uncapped spot prices for the SA1 region over the previous 2016 trading intervals has exceeded the cumulative price threshold (CPT) of $1,573,700.00.
In accordance with Clause 3.14.2(b) of the National Electricity Rules, AEMO has determined that an administered price period will commence at the trading interval starting 1805 hrs on 09 March 2025 and will continue through to the end of that trading day.
An administered price cap (APC) of 600 $/MWh will apply to all trading intervals during this administered price period. This APC will apply to spot prices and to all market ancillary service prices in the SA1 region.
An administered floor price (AFP) of -600 $/MWh will apply to spot prices.
AEMO will continue to monitor the rolling sum of the uncapped spot prices and issue further Market Notices as required.
This is an AEMO autogenerated Market Notice.