Market Notices

117285SETTLEMENTS RESIDUE03/07/2024 05:55:22 PM

[EventId:202407031755_NRM_NSW1_VIC1_stopped] NEGRES CONSTRAINT NRM_NSW1_VIC1 ceased operating from 03 July 2024 17:55

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1755 hrs on 3 July 2024

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 3 July 2024.

Refer to market notice: 117283

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 1755 hrs on 3 July 2024.

This is an AEMO autogenerated Market Notice.
     
117284RESERVE NOTICE03/07/2024 05:42:34 PM

Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 03/07/2024

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 03/07/2024

An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1730 hrs.
The Actual LOR1 condition is forecast to exist until 1930 hrs

The capacity reserve requirement is 1400 MW
The minimum capacity reserve available is 766 MW

Manager NEM Real Time Operations
     
117283SETTLEMENTS RESIDUE03/07/2024 05:30:25 PM

[EventId:202407031730_NRM_NSW1_VIC1_started] NEGRES CONSTRAINT NRM_NSW1_VIC1 started operating from 03 July 2024 17:30

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1730 hrs on 3 July 2024

ACTUAL NEGATIVE SETTLEMENT RESIDUES - NSW to VIC - 3 July 2024.

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 1730 hrs on 3 July 2024.

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.
     
117281MARKET INTERVENTION03/07/2024 03:16:12 PM

Update - Possible intervention to manage power system security in SA region

AEMO ELECTRICITY MARKET NOTICE

Update - Possible intervention to manage power system security in SA region

Refer AEMO Electricity Market Notice 117278

The synchronous generating units currently expected to be synchronised in SA from 0000 hrs 05/07/2024 will be inadequate to maintain a secure operating state in SA .

AEMO estimates that, in the absence of sufficient market response by 1300 hrs 04/07/2024, 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
     
117280RECLASSIFY CONTINGENCY03/07/2024 03:14:13 PM

Cancellation of Reclassification of a Non-Credible Contingency Event - SA region - 13/10/2023

AEMO ELECTRICITY MARKET NOTICE

Cancellation of Reclassification of a Non-Credible Contingency Event: South East No.1 SVC and No.2 SVC - SA region - 13/10/2023.

Refer AEMO Electricity Market Notice 110252

Based on advice from the participant, AEMO considers the trip of the following circuit at South East is unlikely to re-occur. Accordingly, its classification has reverted to a non-credible contingency event.

Region: SA

Equipment: South East No.1 SVC and No.2 SVC

Cancellation time: 1515 hrs 03/07/2024

Constraint set(s) revoked: Nil


Manager NEM Real Time Operations
     
117278MARKET INTERVENTION03/07/2024 01:46:31 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 0000 hrs 05/07/2024 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.
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
     
117258MARKET SYSTEMS01/07/2024 10:32:38 AM

CHG0090790 | Completed | Production | Maintenance activities to be performed on the Gas Short Term Trading Market Systems Production.

Change Number: CHG0090790

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/Component: Gas FRC - CATS

Change Title: Maintenance activities to be performed on the Gas Short Term Trading Market Systems Production.

Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
     
117257MARKET SYSTEMS01/07/2024 10:27:56 AM

CHG0090718 | Production | QLD Marketnet Router Replacement

Change Number: CHG0090718

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Market Network

Change Title: QLD Marketnet Router Replacement

Change Start Date & Time: 10/08/2024 13:00:24 AEST

Change End Date & Time: 10/08/2024 17:00:24 AEST

Outage Start Date & Time:

Outage End Date & Time:

Environment: Production

Participant Impact and Requirements: The following impacts are expected to participant connectivity during this planned outage:

IPWAN Participants - A brief interuption of up to 60 seconds while services are failover from QLD to NSW Datacenter.

Lan-2-Lan VPN Participants (IPSEC) - Up to 2 hour outage for participants who have established their VPN connection/s via the AEMO QLD datacenter termination point (202.44.76.10) only - All L2L connections should be established to both QLD / NSW.

Note: Participants are encouraged to ensure their VPN connections are already established or are configured (as per AEMO best practice) to automatically failover to the alternate AEMO NSW datacenter termination point (202.44.78.10) prior to this scheduled outage.

B2B VPN - No impact is expected.

SSL VPN Participants: None expected as SSL VPN's are hosted on a different device.

GASHUB: No impact is expected as GASHUB will be failed over to the NSW Datacenter.

Other Impacts will have been communicated in advance.

Support Information:
Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
     
117256MARKET SYSTEMS01/07/2024 10:24:08 AM

CHG0090717 | Production | NSW Marketnet Router Replacement

Change Number: CHG0090717

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Market Network

Change Title: NSW Marketnet Router Replacement

Change Start Date & Time: 27/07/2024 13:00:06 AEST

Change End Date & Time: 27/07/2024 17:00:06 AEST

Outage Start Date & Time:

Outage End Date & Time:

Environment: Production

Participant Impact and Requirements: The following impacts are expected to participant connectivity during this planned outage:

IPWAN Participants - A brief interuption of up to 60 seconds while services are failover from NSW to QLD Datacenter.

Lan-2-Lan VPN Participants (IPSEC) - Up to 2 hour outage for participants who have established their VPN connection/s via the AEMO NSW datacenter termination point (202.44.78.10) only - All L2L connections should be established to both QLD / NSW.

Note: Participants are encouraged to ensure their VPN connections are already established or are configured (as per AEMO best practice) to automatically failover to the alternate AEMO QLD datacenter termination point (202.44.76.10) prior to this scheduled outage.

B2B VPN - No impact is expected.

SSL VPN Participants: None expected as SSL VPN's are hosted on a different device.

GASHUB: No impact is expected as GASHUB is currently operating out of BNE Datacenter.

Other Impacts will have been communicated in advance.

Support Information:
Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
     
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