Market Notices

Change Number: CHG0039229

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Electricity Market Management System

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

Change Start Date & Time: 30/05/2016 10:00:00 AEST

Change End Date & Time: 30/05/2016 12:00:00 AEST


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 issued 18th March 2016 for more information.)

The new minimum Ramp Rates will become effective and be used in validation from trading day 08/06/16 in Pre-Production and from 01/07/16 in Production.

Environment: Pre-Production

Participant Impact and Requirements:

This rule change results in some DUIDs having a changed Minimum Ramp Rate used in offer validation. AEMO encourages participants to validate their own offering systems in Pre-Production before the Production implementation date.

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: CHG0038899

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Gas Supply Hub

Change Title: Planned System Outage - Gas Supply Hub - Moomba Trading Locations Update in Production

Change Start Date & Time: 31/05/2016 19:00:00 AEST

Change End Date & Time: 31/05/2016 22:00:00 AEST


Outage Start Date & Time: 31/05/2016 19:00:00 AEST

Outage End Date & Time: 31/05/2016 22:00:00 AEST


Change Description:

This change is implemented for Gas Supply Hub Moomba project to update 2 new trading locations and to add a Spread product between Moomba and Wallumbilla to facilitate trading between the two markets.

Environment: Production

Participant Impact and Requirements:

Awareness of this outage. Outage is expected and access will be restricted during the times mentioned in the outage section.

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

Change Number: CHG0038803

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: MSATS - Consumer Administration and Transfer Solution

Change Title: Planned System Change - MSATS Pre-Production Mid-Year 2016 - Release 46.85

Change Start Date & Time: 01/06/2016 09:00:00 AEST

Change End Date & Time: 01/06/2016 12:00:00 AEST


Outage Start Date & Time: 01/06/2016 09:00:00 AEST

Outage End Date & Time: 01/06/2016 12:00:00 AEST


Change Description:

The MSATS Pre-Production system will be upgraded with the release 46.85 as per the change notice 930 issued on 16th March 2016.
Note: There are no schema changes associated with this release

Environment: Pre-Production

Participant Impact and Requirements:

Awareness of this Outage. MSATS Pre-Production environment will be unavailable during the outage times mentioned above.

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

Change Number: CHG0038847

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Electricity Market Management System

Change Title: Planned System Change - EMMS Production Mid 2016 Release

Change Start Date & Time: 23/05/2016 09:00:00 AEST

Change End Date & Time: 26/05/2016 17:00:00 AEST

Change Description:

As per Change Notice 931 issued on 18/03/2016 the EMMS Mid Year 2016 release will be implemented as per the planned start and end dates mentioned above.

Environment: Production

Participant Impact and Requirements:

Awareness of this Change. There should be no noticeable impact to participants or users of the EMMS systems.

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

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line in Tasmania due to Lightning.

Refer AEMO Electricity Market Notice 53432

There is no longer any lightning activity in the vicinity of the Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 2310 hrs.


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event: Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line in Tasmania due to Lightning.

Lightning is occurring near the Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line.

AEMO considers the simultaneous trip of those circuits to now be more likely.

Therefore AEMO has reclassified this as a credible contingency event from 2210 hrs 19/05/16 until further notice.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line in Tasmania due to Lightning.

Refer AEMO Electricity Market Notice 53427

There is no longer any lightning activity in the vicinity of the Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 1255hrs.


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event: Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line in Tasmania due to Lightning.
Lightning is occurring near the Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line.
AEMO considers the simultaneous trip of those circuits to now be more likely.
Therefore AEMO has reclassified this as a credible contingency event from 1210 hrs 19 MAY 2016 until further notice.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Chapel Street - Liapootah No.1 and No.2 220 kV Lines in Tasmania due to Lightning.
Refer AEMO Electricity Market Notice 53419
There is no longer any lightning activity in the vicinity of the Chapel Street - Liapootah No.1 and No.2 220 kV Lines.
AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 1130 hrs.
Constraint Set T-CSLI_N-2 revoked.

Manager NEM Real Time Operations