Market Notices

60240RECLASSIFY CONTINGENCY05/12/2017 04:28:25 PM

Reclassification of a Non-Credible Contingency Event: Dederang - Glenrowan No. 1 and No. 3 220kV lines in VIC 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: VIC

Lines: Dederang - Glenrowan No. 1 and No. 3 220kV lines

Duration: 05/12/2017 16:25 until further notice
Constraint set(s) invoked: V-DDGN_N-2
Interconnectors on LHS of related constraint equations: V-S-MNSP1, V-SA, VIC1-NSW1

Manager NEM Real Time Operations
60239MARKET SYSTEMS05/12/2017 02:52:15 PM

CHG0044957:Planned System Maintenance - Electricity MMS Production Bay Transfer - December Production Release

MARKET NOTICE

Change Number: CHG0044957

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/ Component: EMMS - Reporting

Change Title: Planned System Maintenance - Electricity MMS Production Bay Transfer - December Production Release

Change Description:
Transfer Successful

Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
60238RESERVE NOTICE05/12/2017 01:51:04 PM

RESERVE NOTICE MT PASA PUBLICATION 05 December 2017

AEMO ELECTRICITY MARKET NOTICE

The MTPASA result published on 05 December 2017 shows Low Reserve Conditions (LRC) in South Australia and Victoria for summer 2017-18 and 2018-19. Please note that MTPASA informs the market of potential LRC's to allow the market to respond in the first instance, potentially avoiding the need for any market intervention or direction from AEMO. As such, the MTPASA forecast does not incorporate many of the actions taken by AEMO to improve reliability this summer.

This notice supersedes Market Notice 60073 published on 28 November 2017.

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 capacity reserve conditions over a two year period.
AEMO may apply probabilistic studies such as Energy Adequacy Assessment Projection (EAAP) to confirm the LRC findings of MTPASA before intervening in the market.

For more information about how AEMO implements the reliability standard, please view the Reliability Standard Implementation Guidelines (RSIG) available on AEMO's website at
http://www.aemo.com.au/-/media/Files/Stakeholder_Consultation/Consultations/Electricity_Consultations/2016/EAAP/Reliability-Standard-Implementation-Guidelines.pdf

Supply Forecasting
AEMO
60237MARKET SYSTEMS05/12/2017 07:56:18 AM

CHG0046265:Cut over DWGM WebExchanger -WEX from Sybase to SQL


Market Notice

Change Number: CHG0046265

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Access

Change Title: Cut over DWGM WebExchanger -WEX from Sybase to SQL

Change Start Date & Time: 07/12/2017 15:00:00 AEST

Change End Date & Time: 07/12/2017 20:00:00 AEST

Outage Start Date & Time: 07/12/2017 15:00:00 AEST

Outage End Date & Time: 07/12/2017 20:00:00 AEST

Change Description:

Planned outage for Gas DWGM WebExchanger -WEX Preproduction sytem

Environment: Pre-Production

Participant Impact and Requirements:

Gas DWGM WebExchanger -WEX Preproduction system not available during outage window

Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
60236MARKET SYSTEMS05/12/2017 07:54:40 AM

CHG0046251: Planned outage for Gas DWGM MIBB Preproduction reporting sytem

Market Notice

Change Number: CHG0046251

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Access

Change Title: Cut over DWGM reporting server from Sybase to SQL

Change Start Date & Time: 07/12/2017 11:00:00 AEST

Change End Date & Time: 07/12/2017 15:00:00 AEST

Outage Start Date & Time: 07/12/2017 11:00:00 AEST

Outage End Date & Time: 07/12/2017 15:00:00 AEST

Change Description:

Planned outage for Gas DWGM MIBB Preproduction reporting sytem

Environment: Pre-Production

Participant Impact and Requirements:

Gas DWGM MIBB Preproduction system not available during outage window

Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
60235INTER-REGIONAL TRANSFER05/12/2017 05:21:20 AM

Cancellation -Inter-regional transfer limit variation: Hazelwood - South Morang No.2 500kV Line (VIC) - Voltage Control

AEMO ELECTRICITY MARKET NOTICE

Cancellation -Inter-regional transfer limit variation: Hazelwood - South Morang No.2 500kV Line (VIC) - Voltage Control

Refer AEMO Electricity Market Notice 60232

The Hazelwood - South Morang No.2 500kV Line has been returned to service.

The following constraint set was revoked at 05/12/2017 05:20

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
60234NON-CONFORMANCE05/12/2017 04:40:13 AM

NON-CONFORMANCE Region QLD1 Tuesday, 5 December 2017

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Tuesday, 5 December 2017

AEMO declared a schedule generating unit non-conforming

Unit: GSTONE5
Duration: 05/12/2017 04:30 to 05/12/2017 04:40
Amount: 16 MW
Constraint: NC-Q_GSTONE5

Auto-generated on behalf of Manager NEM Real Time Operations
60233NON-CONFORMANCE05/12/2017 03:00:09 AM

NON-CONFORMANCE Region QLD1 Tuesday, 5 December 2017

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Tuesday, 5 December 2017

AEMO declared a schedule generating unit non-conforming

Unit: GSTONE5
Duration: 05/12/2017 02:20 to 05/12/2017 03:00
Amount: -50 MW
Constraint: NC-Q_GSTONE5

Auto-generated on behalf of Manager NEM Real Time Operations
60232INTER-REGIONAL TRANSFER05/12/2017 01:42:35 AM

Inter-regional transfer limit variation: Hazelwood - South Morang No.2 500kV Line (VIC) - Voltage Control

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation: Hazelwood - South Morang No.2 500kV Line (VIC) - Voltage Control

The Hazelwood - South Morang No.2 500kV Line has been de-energised to manage voltages in the VIC region.

The following constraint set was invoked at 05/12/2017 01:40

V-HWSM

The constraint set contains equations with the following interconnectors on the LHS.

T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1

Refer to AEMO Network Outage Schedule for further details and return to service times

Manager NEM Real Time Operations
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