Market Notices

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
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
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.
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.
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
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
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.
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
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
X
Cookies help us improve your website experience.
By using our website, you agree to our use of cookies.
Confirm