Market Notices

AEMO ELECTRICITY MARKET NOTICE

Direction - SA Region - 03/09/2021

In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).

The direction was necessary to maintain the power system in a secure operating state.

AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.

The issue of the direction commences an AEMO intervention event. AEMO declares all dispatch intervals during the event to be intervention dispatch intervals, commencing from the interval ending 1705 hrs on 03/09/2021.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Update - Possible intervention to manage power system security in South Australia (SA) Region

Refer AEMO Electricity Market Notice 90198

The synchronous generating units currently expected to be synchronised in SA from 0900 hrs 04/09/2021 to 0400 hrs 05/09/2021 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.

AEMO estimates that, in the absence of sufficient market response by 1700 hrs 03/09/2021, 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 Operation

Market Notice
Change Number: CHG0069318
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Gas B2B Hub/ MSATS - Business to Business data exchange
Change Title: e-Hub production cutover of existing keystore
Change Start Date & Time: 19/09/2021 10:00:00 AEST
Change End Date & Time: 19/09/2021 12:00:00 AEST
Outage Start Date & Time:
Outage End Date & Time:
Change Description: Please note that the X.509 digital public certificate securing traffic from the following endpoints is being renewed
Environment: Production
Participant Impact and Requirements:
Participants connecting to these endpoints or receiving requests from AEMO's eHub B2B or FRC Gas hub platforms and have certificate pinning/fingerprinting in place will notice a change in the certificate fingerprint and may need to update their systems accordingly.
https://apis.prod.aemo.com.au:9319
https://apis.prod.marketnet.net.au:9319
https://hub.aemo.com.au:5319
https://hub.marketnet.net.au:5319
https://prod.frchub.net:5319
Certificates can be downloaded from https://dev.aemo.com.au/tls-certificates#certificate-downloads


User Requirements:
Users validating the existing certificate will notice a change in the certificate fingerprint and may need to update their systems accordingly.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.

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: Hazelwood - Rowville No.1 220kV and Hazelwood - Rowville No.2 220kV

Duration: 03/09/2021 14:15 until further notice

Constraint set(s) invoked:
V-HWRO_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE


Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

SERVICE INTERRUPTION - RESOLVED
AEMO is aware of RM27 (Level2SettlementReconciliation) reports not getting processed and delivered by MSATS - Enterprise MDM.
All RM27 (Level2SettlementReconciliation) reports for week 35 have now been delivered. This incident has now been stood down.
For further enquiries please contact the AEMO Support Hub
Phone: 1300 236 600
Email: supporthub@aemo.com.au
AEMO IT Duty Manager

AEMO ELECTRICITY MARKET NOTICE

Possible intervention to manage power system security in South Australia (SA) Region

The synchronous generating units currently expected to be synchronised in SA from 0130 hrs 04/09/2021 to 0400 hrs 05/09/2021 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.

AEMO estimates that, in the absence of sufficient market response by 1700 hrs 03/09/2021, 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 Operation

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1105 hrs on 3 September 2021

PRICES ARE NOW CONFIRMED for dispatch interval 03-Sep-2021 10:40.

In accordance with Market Notice 90186 AEMO has reviewed this dispatch interval and determined that:
- Manifestly Incorrect Inputs did not apply

Prices remain unchanged.


This is an AEMO autogenerated Market Notice.

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1105 hrs on 3 September 2021

PRICES ARE NOW CONFIRMED for dispatch interval 03-Sep-2021 11:05.

In accordance with Market Notice 90191 AEMO has reviewed this dispatch interval and determined that:
- Manifestly Incorrect Inputs did not apply

Prices remain unchanged.


This is an AEMO autogenerated Market Notice.

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1105 hrs on 3 September 2021

PRICES ARE NOW CONFIRMED for dispatch interval 03-Sep-2021 11:00.

In accordance with Market Notice 90190 AEMO has reviewed this dispatch interval and determined that:
- Manifestly Incorrect Inputs did not apply

Prices remain unchanged.


This is an AEMO autogenerated Market Notice.