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86778MARKET SYSTEMS08/06/2021 12:37:29 PM
CHG0064912 - Reboot & Upgrade Norwest MarketNet POP Router.
Market Notice
Change Number: CHG0064912
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Expedited
Service/ Component: Market Network
Change Title: Reboot & Upgrade Norwest MarketNet POP Router.
Change Start Date & Time: 08/06/2021 14:00:00 AEST
Change End Date & Time: 08/06/2021 16:00:00 AEST
Outage Start Date & Time: 08/06/2021 14:00:00 AEST
Outage End Date & Time: 08/06/2021 16:00:00 AEST
Change Description:
AEMO is performing an expedited maintenance on the MarketNet POP Router in Norwest.
During this time, Participants still connected to Site-Site VPN via Norwest will observe connectivity issues if not already connecting via Brisbane.
Participants are strongly advised to connect via Brisbane prior to the change timeframe.
Environment: Production
Participant Impact and Requirements:
Participants connecting via Site-Site VPN to Norwest need to ensure that Site-Site VPN points to Brisbane prior to the change commencing.
Participants connecting through IPWAN will be unaffected.
Participants connecting through SSL-VPN to Norwest will be disconnected and will automatically reconnect to Brisbane
The Brisbane IP is 202.44.76.10
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Change Number: CHG0064912
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Expedited
Service/ Component: Market Network
Change Title: Reboot & Upgrade Norwest MarketNet POP Router.
Change Start Date & Time: 08/06/2021 14:00:00 AEST
Change End Date & Time: 08/06/2021 16:00:00 AEST
Outage Start Date & Time: 08/06/2021 14:00:00 AEST
Outage End Date & Time: 08/06/2021 16:00:00 AEST
Change Description:
AEMO is performing an expedited maintenance on the MarketNet POP Router in Norwest.
During this time, Participants still connected to Site-Site VPN via Norwest will observe connectivity issues if not already connecting via Brisbane.
Participants are strongly advised to connect via Brisbane prior to the change timeframe.
Environment: Production
Participant Impact and Requirements:
Participants connecting via Site-Site VPN to Norwest need to ensure that Site-Site VPN points to Brisbane prior to the change commencing.
Participants connecting through IPWAN will be unaffected.
Participants connecting through SSL-VPN to Norwest will be disconnected and will automatically reconnect to Brisbane
The Brisbane IP is 202.44.76.10
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
86777RECLASSIFY CONTINGENCY08/06/2021 12:14:20 PM
Reclassification of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 due to Lightning.
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: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 08/06/2021 12:14 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
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: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 08/06/2021 12:14 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
86776RECLASSIFY CONTINGENCY08/06/2021 12:09:54 PM
Cancellation of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Cancellation time: 08/06/2021 12:09
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 86770
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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Cancellation time: 08/06/2021 12:09
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 86770
Auto-generated on behalf of Manager NEM Real Time Operations
86775MARKET INTERVENTION08/06/2021 12:43:14 PM
Possible intervention to manage power system security in South Australia (SA) Region
AEMO ELECTRICITY MARKET NOTICE
Possible intervention to manage power system security in South Australia (SA) Region
The synchronous generating units expected to be synchronised in SA from 0100 hrs 09/06/2021 to 1530 hrs 09/06/2021 in Pre-dispatch published at 1230 hrs 08/06/2021 are inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO currently estimates that, in the absence of sufficient market response by 0000 hrs 09/06/2021, 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 Operations
Possible intervention to manage power system security in South Australia (SA) Region
The synchronous generating units expected to be synchronised in SA from 0100 hrs 09/06/2021 to 1530 hrs 09/06/2021 in Pre-dispatch published at 1230 hrs 08/06/2021 are inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO currently estimates that, in the absence of sufficient market response by 0000 hrs 09/06/2021, 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 Operations
86774MARKET INTERVENTION08/06/2021 11:37:49 AM
Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 07/06/2021
AEMO ELECTRICITY MARKET NOTICE
Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 07/06/2021
Refer Market Notice 86733
The AEMO Intervention Event and all associated directions are cancelled from 1125 hrs 08/06/2021
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 07/06/2021
Refer Market Notice 86733
The AEMO Intervention Event and all associated directions are cancelled from 1125 hrs 08/06/2021
Manager NEM Real Time Operations
86772RESERVE NOTICE08/06/2021 01:48:05 PM
RESERVE NOTICE MT PASA PUBLICATION 08 June 2021
The MTPASA result published on 08 June 2021 identifies no Low Reserve Conditions.
Please note that MTPASA informs the market of potential reliability issues to allow the market to respond in the first instance, potentially avoiding the need for any market intervention or direction from AEMO.
For further information, please refer to:
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Data/Market-Management-System-MMS/Projected-Assessment-of-System-Adequacy
This notice supersedes Market Notice 86348 published on 01st June 2021.
Background
As part of a broader process of implementing the reliability standard, AEMO runs the Medium Term Projected Assessment of System Adequacy (MTPASA) process weekly to forecast expected unserved energy levels over a two year period. If the expected annual unserved energy exceeds the maximum level specified by the Reliability Standard, a Low Reserve Condition is identified.
For more information about how AEMO implements the reliability standard, please view the Reliability Standard Implementation Guidelines (RSIG) available on AEMO's website at
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Planning-and-forecasting/Reliability-Standard-Implementation-Guidelines
Forecasting
AEMO
Please note that MTPASA informs the market of potential reliability issues to allow the market to respond in the first instance, potentially avoiding the need for any market intervention or direction from AEMO.
For further information, please refer to:
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Data/Market-Management-System-MMS/Projected-Assessment-of-System-Adequacy
This notice supersedes Market Notice 86348 published on 01st June 2021.
Background
As part of a broader process of implementing the reliability standard, AEMO runs the Medium Term Projected Assessment of System Adequacy (MTPASA) process weekly to forecast expected unserved energy levels over a two year period. If the expected annual unserved energy exceeds the maximum level specified by the Reliability Standard, a Low Reserve Condition is identified.
For more information about how AEMO implements the reliability standard, please view the Reliability Standard Implementation Guidelines (RSIG) available on AEMO's website at
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Planning-and-forecasting/Reliability-Standard-Implementation-Guidelines
Forecasting
AEMO
86771RESERVE NOTICE08/06/2021 11:44:46 AM
STPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the QLD Region on 10/06/2021
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 condition in the QLD region advised in AEMO Electricity Market Notice No. 86768 is cancelled at 1100 hrs 08/06/2021.
No LOR2 condition is currently forecast in the STPASA period other than in NSW advised in AEMO Electricity Market Notice No. 86754.
AEMO Operations
The Forecast LOR2 condition in the QLD region advised in AEMO Electricity Market Notice No. 86768 is cancelled at 1100 hrs 08/06/2021.
No LOR2 condition is currently forecast in the STPASA period other than in NSW advised in AEMO Electricity Market Notice No. 86754.
AEMO Operations
86770RECLASSIFY CONTINGENCY08/06/2021 11:07:35 AM
Reclassification of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 due to Lightning.
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: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 08/06/2021 11:07 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
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: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 08/06/2021 11:07 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
86768RESERVE NOTICE08/06/2021 09:55:54 AM
STPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the QLD Region on 10/06/2021
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 condition in the QLD region advised in AEMO Electricity Market Notice No. 86752 has been updated at 0900 hrs 08/06/2021 to the following:
[1.] From 1800 hrs 10/06/2021 to 1900 hrs 10/06/2021.
The forecast capacity reserve requirement is 686 MW.
The minimum capacity reserve available is 576 MW.
[2.] From 2000 hrs 10/06/2021 to 2030 hrs 10/06/2021.
The forecast capacity reserve requirement is 704 MW.
The minimum capacity reserve available is 573 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations
The Forecast LOR2 condition in the QLD region advised in AEMO Electricity Market Notice No. 86752 has been updated at 0900 hrs 08/06/2021 to the following:
[1.] From 1800 hrs 10/06/2021 to 1900 hrs 10/06/2021.
The forecast capacity reserve requirement is 686 MW.
The minimum capacity reserve available is 576 MW.
[2.] From 2000 hrs 10/06/2021 to 2030 hrs 10/06/2021.
The forecast capacity reserve requirement is 704 MW.
The minimum capacity reserve available is 573 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations