Market Notices

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation Bungama - Davenport 275 kV Line (SA) - 16/06/2016

At 0736 hrs, there was an unplanned outage of the Bungama - Davenport 275 kV Line.

The following constraint set was invoked from 1745 hrs.
S-BGDV

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

V-S-MNSP1

See Network Outage Scheduler (NOS) for further details

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE VIC1 Region Wednesday, 15 June 2016

AEMO declared a schedule generating unit non-conforming

Unit: HWPS4
Duration: 15/06/2016 21:55 to 15/06/2016 22:00
Amount: -27 MW
Constraint: NC-V_HWPS4

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Network Augmentation Commissioned - South Australia Region - 15 June 2016

A network augmentation has been commissioned in the South Australia Region

The Mt Lock 275 kV Sub Station was commissioned at 1630 hrs 15 June 2016. Mt Lock substation has been cut into the former Canowie - Davenport 275 kV Line to form two new transmission lines, Canowie - Mt Lock 275 kV Line and Davenport - Mt Lock 275 kV Line.


Manager NEM Real Time Operations

Change Number: CHG0039588

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: EMMS - Dispatch

Change Title: Planned System Change - EMMS Production: Generator Ramp Rate Rule Change

Change Start Date & Time: 21/06/2016 13:00:00 AEST

Change End Date & Time: 21/06/2016 15:00:00 AEST

Outage Start Date & Time:

Outage End Date & Time:

Change Description:

This change is to support the new generator ramp rate rules starting on 1st July 2016.

As part of this change AEMO will publish data informing Participants of their Minimum Ramp Rates including Generator DUID and individual unit max capacities. (Refer to the AEMO Tech Spec 931 re-issued on 3rd June 2016 for more information.)

The new minimum Ramp Rates will become effective and be used in validation from trading day 01/07/16 in Production.

Environment: Production

Participant Impact and Requirements:

This rule change results in some DUIDs having a changed Minimum Ramp Rate used in offer validation.

AEMO reminds participants to ensure that any previously accepted offers are revised for compliance with the new Minimum Ramp Rate.

AEMO will contact Participants if they are potentially in breach of the Minimum Ramp Rate rule requirements before the rule becomes effective.

Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.

Change Number: CHG0039546

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Network Outage Scheduler

Change Title: Planned System Outage due to NOS application version update to 3.0.9 (Pre-Production)

Change Start Date & Time: 16/06/2016 10:00:00 AEST

Change End Date & Time: 16/06/2016 11:00:00 AEST

Outage Start Date & Time: 16/06/2016 10:00:00 AEST

Outage End Date & Time: 16/06/2016 10:20:00 AEST

Change Description:

The upgrade will include minor enhancements to AEMO NOS Pre-production user interface

Environment: Pre-Production

Participant Impact and Requirements:

Pre-Production NOS will be unavailable during the specified outage times.

Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.

Change Number: CHG0039558

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Network Outage Scheduler

Change Title: Planned System Outage due to NOS application version update to 3.0.9 (Production)

Change Start Date & Time: 22/06/2016 10:00:00 AEST

Change End Date & Time: 22/06/2016 11:00:00 AEST

Outage Start Date & Time: 22/06/2016 10:00:00 AEST

Outage End Date & Time: 22/06/2016 10:20:00 AEST

Change Description:

The upgrade will include minor enhancements to AEMO NOS user interface.

Environment: Production

Participant Impact and Requirements:

Production NOS will be unavailable during the specified outage times.

Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.

Change Number: CHG0039552

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Market Network

Change Title: Planned System Outage - NSW MarketNet Load-Balancer - Software patch update

Change Start Date & Time: 21/06/2016 09:30:00 AEST

Change End Date & Time: 21/06/2016 14:00:00 AEST

Outage Start Date & Time: 21/06/2016 10:00:00 AEST

Outage End Date & Time: 21/06/2016 12:00:00 AEST

Change Description:

Vendor recommended the patch to be applied to mitigate a number of software bugs and vulnerabilities that may compromise the stability of the load-balancer.

Environment: Production

Participant Impact and Requirements:

The following impacts are expected to participant connectivity during this planned outage:

IPWAN Participants - Marketnet IPWAN will experience 2 x 30 second disruptions

Lan-2-Lan VPN Participants - Participant connected to the NSW VPN gateway (202.44.78.10) will experience 2 disruptions lasting 30 seconds each.
To avoid disruptions, please connect via the QLD VPN gateway (202.44.76.10) prior to Change start time as mentioned above.

Remote Access VPN Participants - Participants who utilise an AEMO RSA token and the AEMO VPN client software to establish their VPN via the AEMO NSW datacenter VPN termination point (202.44.78.8)
will experience three disruptions lasting 30 seconds each.
Note: Participants are advised to establish their VPN client software connections via the alternate AEMO QLD datacenter VPN endpoint (202.44.76.8) prior to this scheduled outage.

Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Hazelwood - Cranbourne No. 4 500kV Transmission Line (Vic)

Hazelwood - Cranbourne No. 4 500kV Transmission Line has been returned to service early in the Vic region.

The following constraint sets were revoked at 1325 hrs.
V-HWCB4

The constraint sets contain equations with the following interconnectors on the LHS.
NSW-QLD1
VIC1-NSW1
V-SA
V-S-MNSP1
T-V-MNSP1

Refer to AEMO Network Outage Schedule for further details.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE VIC1 Region Wednesday, 15 June 2016

AEMO declared a schedule generating unit non-conforming

Unit: HWPS2
Duration: 15/06/2016 09:20 to 15/06/2016 09:30
Amount: -11 MW
Constraint: NC-V_HWPS2

Auto-generated on behalf of Manager NEM Real Time Operations