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75095POWER SYSTEM EVENTS01/04/2020 05:35
Update - Non-credible contingency event - SA region - 01/04/2020
AEMO ELECTRICITY MARKET NOTICE.
At 1541 hrs at Snuggery 132kV Gen Bus tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
At 1541 hrs at Snuggery 132kV Gen Bus tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
75094POWER SYSTEM EVENTS01/04/2020 04:32
Non-credible contingency event - SA region - 01/04/2020
AEMO ELECTRICITY MARKET NOTICE.
At 1541 hrs at Snuggery 132kV Gen Bus tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
At 1541 hrs at Snuggery 132kV Gen Bus tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
75093MARKET SYSTEMS01/04/2020 10:59
CHG0058351: UPDATE - PROD - 5MS - Release 1 - Reallocations
Please be advised that as part of CHG0058351 AEMO will be undertaking cutover of the Reallocations functionality in EMMS today. AEMO requests that participants do not access Reallocations functionality from 01/04/2020 13:00:00 AEST until further notice.
Change Number: CHG0058351
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: EMMS - Settlements, EMMS - Billing
Change Title: PROD - 5MS - Release 1 - Reallocations
Change Start Date & Time: 30/03/2020 08:00:00 AEST
Change End Date & Time: 02/04/2020 18:00:00 AEST
Outage Start Date & Time: 01/04/2020 13:00:00 AEST
Outage End Date & Time: 01/04/2020 14:00:00 AEST
Change Description:
The Reallocations functionality for 5MS will be deployed in the AEMO Production environment on Wednesday 1 April 2020.
Environment: Production
Participant Impact and Requirements:
The new functionality will allow for those Market Participants that are registered for reallocations to submit reallocations for the period after 1 July 2021 in five-minute intervals.
EMMS 5MS Technical Specification - Reallocations is the relevant Technical Specification for the deployment and is available on our website.
https://aemo.com.au/-/media/files/electricity/nem/it-systems-and-change/2019/emms-technical-specification-5ms-reallocations.pdf
Market Participants will also experience a new User Interface and new APIs to submit reallocations and new alert and notification features. Some other enhancements include: bulk edit, CSV download or upload capability, public holidays, and reversing or duplicating reallocations.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Change Number: CHG0058351
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: EMMS - Settlements, EMMS - Billing
Change Title: PROD - 5MS - Release 1 - Reallocations
Change Start Date & Time: 30/03/2020 08:00:00 AEST
Change End Date & Time: 02/04/2020 18:00:00 AEST
Outage Start Date & Time: 01/04/2020 13:00:00 AEST
Outage End Date & Time: 01/04/2020 14:00:00 AEST
Change Description:
The Reallocations functionality for 5MS will be deployed in the AEMO Production environment on Wednesday 1 April 2020.
Environment: Production
Participant Impact and Requirements:
The new functionality will allow for those Market Participants that are registered for reallocations to submit reallocations for the period after 1 July 2021 in five-minute intervals.
EMMS 5MS Technical Specification - Reallocations is the relevant Technical Specification for the deployment and is available on our website.
https://aemo.com.au/-/media/files/electricity/nem/it-systems-and-change/2019/emms-technical-specification-5ms-reallocations.pdf
Market Participants will also experience a new User Interface and new APIs to submit reallocations and new alert and notification features. Some other enhancements include: bulk edit, CSV download or upload capability, public holidays, and reversing or duplicating reallocations.
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
75092MARKET SYSTEMS01/04/2020 07:26
CHG0058725: Planned System Maintenance - Electricity MMS PreProduction
Market Notice
Change Number: CHG0058725
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: 06/04/2020 13:00:00 AEST
Change End Date & Time: 06/04/2020 15:00:00 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 Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Change Number: CHG0058725
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: 06/04/2020 13:00:00 AEST
Change End Date & Time: 06/04/2020 15:00:00 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 Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
75091INTER-REGIONAL TRANSFER01/04/2020 05:10
Cancellation - Inter-regional transfer limit variation: Hazelwood - South Morang No.2 500 kV Line (Vic) - Voltage Control
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Inter-regional transfer limit variation: Hazelwood - South Morang No.2 500 kV Line (Vic) - Voltage Control
Refer AEMO Electricity Market Notice 75090
The Hazelwood - South Morang No.2 500 kV Line has been returned to service.
The following constraint set was revoked at 0510 hrs 01/04/2020.
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.2 500 kV Line (Vic) - Voltage Control
Refer AEMO Electricity Market Notice 75090
The Hazelwood - South Morang No.2 500 kV Line has been returned to service.
The following constraint set was revoked at 0510 hrs 01/04/2020.
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
75090INTER-REGIONAL TRANSFER01/04/2020 02:08
Inter-regional transfer limit variation: Hazelwood - South Morang No 2 500 kV Line (VIC) - Voltage Control
AEMO ELECTRICITY MARKET NOTICE
The Hazelwood - South Morang No 2 500 kV Line has been de-energised to manage voltages in the Victoria region.
The following constraint set was invoked at 0205 hrs 01/04/2020
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP
V-S-MNSP1
V-SA
VIC1-NSW1
Refer to AEMO Network Outage Scheduler (NOS) for further details
Manager NEM Real Time Operations
The Hazelwood - South Morang No 2 500 kV Line has been de-energised to manage voltages in the Victoria region.
The following constraint set was invoked at 0205 hrs 01/04/2020
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP
V-S-MNSP1
V-SA
VIC1-NSW1
Refer to AEMO Network Outage Scheduler (NOS) for further details
Manager NEM Real Time Operations
75089MARKET SYSTEMS31/03/2020 04:27
CHG0058714 : Telco Outage Notification - Telstra MarketNet IP WAN - NSW (Telstra ref: 2990535)
Change Number: CHG0058714
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Market VPN
Change Title: Telco Outage Notification - Telstra MarketNet IP WAN - NSW (Telstra ref: 2990535)
Change Start Date & Time: 06/04/2020 02:00:00 AEST
Change End Date & Time: 06/04/2020 07:00:00 AEST
Outage Start Date & Time: 06/04/2020 02:00:00 AEST
Outage End Date & Time: 06/04/2020 07:00:00 AEST
Change Description:
Planned Maintenance Affecting the AEMO MarketNet IPWAN Access.
Environment: Production
Participant Impact and Requirements:
The following impacts are expected to participant connectivity during this planned outage:-
o IPWAN Participants - loss of redundancy for 10 minutes
o VPN Participants - nil
o Remote Access VPN Participants - nil
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: Market VPN
Change Title: Telco Outage Notification - Telstra MarketNet IP WAN - NSW (Telstra ref: 2990535)
Change Start Date & Time: 06/04/2020 02:00:00 AEST
Change End Date & Time: 06/04/2020 07:00:00 AEST
Outage Start Date & Time: 06/04/2020 02:00:00 AEST
Outage End Date & Time: 06/04/2020 07:00:00 AEST
Change Description:
Planned Maintenance Affecting the AEMO MarketNet IPWAN Access.
Environment: Production
Participant Impact and Requirements:
The following impacts are expected to participant connectivity during this planned outage:-
o IPWAN Participants - loss of redundancy for 10 minutes
o VPN Participants - nil
o Remote Access VPN Participants - nil
Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
75088RESERVE NOTICE31/03/2020 03:52
RESERVE NOTICE MT PASA PUBLICATION 31 March 2020
The MTPASA result published on 31 March 2020 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 75014 published published on 25 March 2020.
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 75014 published published on 25 March 2020.
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
75087INTER-REGIONAL TRANSFER31/03/2020 05:31
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 75085
The Hazelwood - South Morang No.1 500 kV Line has been returned to service.
The following constraint set was revoked at 0530 hrs 31/03/2020.
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 75085
The Hazelwood - South Morang No.1 500 kV Line has been returned to service.
The following constraint set was revoked at 0530 hrs 31/03/2020.
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