Market Notices

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Loy Yang PS (Vic) - 16/06/2016

At 1106 hrs, there was an unplanned outage of the following plant
Loy Yang No. 1 and No. 3 500 kV Bus
Hazelwood - Loy Yang No. 2 500 kV Line
Loy Yang No. 1 500/220 kV Transformer
Loy Yang A1 generating unit

The following constraint set was invoked.
V-HWLY_2 at 11:15 hrs
V-LY_TX at 11:15 hrs
V-LY_BUS1 at 11:20 hrs
V-LY_BUS3 at 11:20 hrs

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

T-V-MNSP1

See Network Outage Scheduler (NOS) for further details

Manager NEM Real Time Operations

Change Number: CHG0039537

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Electricity Market Management System

Change Title: Planned System Change - Yearly update of the MPC/CPT values in EMMS Production

Change Start Date & Time: 24/06/2016 08:00:00 AEST

Change End Date & Time: 24/06/2016 17:00:00 AEST

Outage Start Date & Time:

Outage End Date & Time:

Change Description:

Please see attached Change Notice.

Environment: Production

Participant Impact and Requirements:

This change details the implementation of Transmission Loss Factors (TLFs), Interconnector Loss Models (ILMs), and Distribution Loss factors (DLFs) values for the period 1 July 2016 to 30 June 2017.
Details of the methodology and specific loss factors are not covered by the change.

Values to be loaded 24th June 2016 effective Date is the 1st July 2016

This change also covers the updating of the following:
Market Price Cap, Market Floor Price and Cumulative Price Threshold values as published on the AEMC website.


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 Bungama - Davenport 275 kV Line (SA) - 16/06/2016

Correction to MN 53976

Constraint Set S-BGDV was invoked at 0745 hrs.



Manager NEM Real Time Operations

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

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