Market Notices

55259MARKET SYSTEMS08/10/2016 09:20:24 AM

CHG0040539 - Planned System Maintenance to STTM PreProduction Systems

Market Notice


Change Number: CHG0040539


Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Short Term Trading Market

Change Title: Planned System Maintenance to STTM PreProduction Systems

Change Start Date & Time: 13/10/2016 10:00:00 AEST

Change End Date & Time: 13/10/2016 14:00:00 AEST


Outage Start Date & Time: 13/10/2016 10:00:00 AEST


Outage End Date & Time: 13/10/2016 14:00:00 AEST


Change Description:

Maintenance activities to be performed on the Gas Short Term Trading Market Systems Preproduction.

Environment: Pre-Production

Participant Impact and Requirements:

This is a regular procedure to allow routine maintenance. All access to the following systems will be unavailable.

Gas Short Term Trading Market (STTM) - Preproduction

Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
55258MARKET SYSTEMS08/10/2016 09:20:06 AM

CHG0040405 - Planned System Change - Electricity MMS Production Bay Transfer

Market Notice

Change Number: CHG0040405


Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Electricity Market Management System

Change Title: Planned System Change - Electricity MMS Production Bay Transfer

Change Start Date & Time: 18/10/2016 13:00:00 AEST

Change End Date & Time: 18/10/2016 15:00:00 AEST


Outage Start Date & Time: NIL


Outage End Date & Time: NIL


Change Description:

Maintenance is performed and EMMS Production Bay transfer is required to support the GSH release activities.

Environment: Production

Participant Impact and Requirements:

The transfer is not expected to have any impact, however there may be some disconnections to the AEMO Web Portal. Participants are reminded that this activity is not without risk and therefore if an electricity market system issue is identified after the transfer it should be reported to AEMO

Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
55221MARKET SYSTEMS04/10/2016 06:46:33 PM

CHG0040680- Update on Retrospective revision of Electricity dispatch and trading price in accordance with market suspension pricing schedule due to South Australia market suspension

Change Number: CHG0040680
Service/ Component: Production Electricity Market Management System
Change Title: Update on Retrospective revision of Electricity dispatch and trading price in accordance with market suspension pricing schedule due to South Australia market suspension
Change Description:
AEMO has determined market prices, relating to the SA Market Suspension, that apply for the period from 16:05 AEST 28th September Wednesday to 24:00 AEST 3rd October Monday) These prices have been loaded into AEMO's Market Systems and published to participants via Data Interchange and to AEMO's public website.
Timing:
AEMO is planning to continue this process tomorrow as market price calculations are progressively finalised for the ongoing period of market suspension, and anticipates this process to conclude 1 business day after the market suspension has been lifted.
Participant Impact and Requirements: If you have downstream processes or systems that may have used existing prices please review to determine any potential impact. As this is a rare event AEMO would like to make sure participants are aware of these changes to market data and that this will result in a large volume of retrospective price data being delivered over AEMO's Data Interchange systems. AEMO will be staggering these data updates to minimise any impacts on AEMO and participants systems due to data volumes. The updated reports will modify existing dispatch and trading prices (previously indicated as firm) in participants Electricity Data Models. AEMO is also planning to rerun our prudential systems to account for updated prices once market prices are loaded. Which will result in updated prudential information being published. While we do not expect any issues, in relation to participants who have a local Electricity Data Model, given the rarity of this event participants are encouraged to validate any impacts on their own downstream systems that may rely on this information.
55149MARKET SYSTEMS03/10/2016 08:38:57 PM

CHG0040680 - Update on Retrospective revision of Electricity dispatch and trading price in accordance with market suspension pricing schedule due to South Australia market suspension

Change Number: CHG0040680
Service/ Component: Production Electricity Market Management System
Change Title: Update on Retrospective revision of Electricity dispatch and trading price in accordance with market suspension pricing schedule due to South Australia market suspension
Change Description:
AEMO has determined market prices, relating to the SA Market Suspension, that apply for the period from 16:05 AEST 28th September Wednesday to 24:00 AEST 2nd October Sunday) These prices have been loaded into AEMO's Market Systems and published to participants via Data Interchange and to AEMO's public website.
Timing:
AEMO is planning to continue this process tomorrow as market price calculations are progressively finalised for the ongoing period of market suspension, and anticipates this process to conclude 1 business day after the market suspension has been lifted.
Participant Impact and Requirements: If you have downstream processes or systems that may have used existing prices please review to determine any potential impact. As this is a rare event AEMO would like to make sure participants are aware of these changes to market data and that this will result in a large volume of retrospective price data being delivered over AEMO's Data Interchange systems. AEMO will be staggering these data updates to minimise any impacts on AEMO and participants systems due to data volumes. The updated reports will modify existing dispatch and trading prices (previously indicated as firm) in participants Electricity Data Models. AEMO is also planning to rerun our prudential systems to account for updated prices once market prices are loaded. Which will result in updated prudential information being published. While we do not expect any issues, in relation to participants who have a local Electricity Data Model, given the rarity of this event participants are encouraged to validate any impacts on their own downstream systems that may rely on this information.
55090MARKET SYSTEMS01/10/2016 03:30:39 PM

CHG0040680: Emergency Change - Retrospective Revision of Electricity dispatch & trading price, during SA market suspension event

Service - Production Electricity Market Management System

Title - Update on Retrospective revision of Electricity dispatch and trading price in accordance with market suspension pricing schedule due to South Australia market suspension

Change Starts - 30/09/2016 13:00 AEST & Ends 01/10/2016 17:00 AEST

Description - AEMO has determined the market prices that apply for the period of the SA suspension (from 16:18 AEST 28th September Wednesday to 24:00 AEST 30th September Friday) These prices have been loaded into AEMO's Market Systems and published to participants via Data Interchange and to AEMO's website.

Timing - AEMO intends to continue this process as soon as practicable for the ongoing period of market suspension, and anticipates this process to conclude 1 business day after the market suspension has been lifted.

Impact & Requirements - If you have downstream processes or systems that may have used existing prices please review to determine any potential impact. As this is a rare event AEMO would like to make sure participants are aware of these changes to market data and that this will result in a large volume of retrospective price data being delivered over AEMO's Data Interchange systems. AEMO will be staggering these data updates to minimise any impacts on AEMO and participants systems due to data volumes.

The updated reports will modify existing dispatch and trading prices (previously indicated as firm) in participants Electricity Data Models. AEMO is also planning to rerun our prudential systems to account for updated prices once market prices are loaded. This will result in updated prudential information being published.

While we do not expect any issues in relation to participants who have a local Electricity Data Model, given the rarity of this event participants are encouraged to validate any impacts on their own downstream systems that may rely on this information. Report any impacts to AEMO on 1300 236 600
55079MARKET SYSTEMS30/09/2016 11:38:52 PM

CHG0040680 :Emergency Change - Retrospective revision of Electricity dispatch and trading price in accordance with market suspension pricing schedule due to South Australia market suspension event

Service - Production Electricity Market Management System
Title - Update on Retrospective revision of Electricity dispatch and trading price in accordance with market suspension pricing schedule due to South Australia market suspension
Change Starts-30/09/2016 13:00 AEST & Ends 01/10/2016 17:00 AEST
Description-AEMO has determined the market prices that apply for the period of the SA suspension (from 16:18 AEST 28th September Wednesday to 24:00 AEST 29th September Thursday) These prices have been loaded into AEMO's Market Systems and published to participants via Data Interchange and to AEMO's website.
Timing: AEMO intends to continue this process tomorrow as market price calculations are progressively finalised for the ongoing period of market suspension, and anticipates this process to conclude 1 business day after the market suspension has been lifted.
Impact & Requirements - If you have downstream processes or systems that may have used existing prices please review to determine any potential impact. As this is a rare event AEMO would like to make sure participants are aware of these changes to market data and that this will result in a large volume of retrospective price data being delivered over AEMO's Data Interchange systems. AEMO will be staggering these data updates to minimise any impacts on AEMO and participants systems due to data volumes. The updated reports will modify existing dispatch and trading prices (previously indicated as firm) in participants Electricity Data Models. AEMO is also planning to rerun our prudential systems to account for updated prices once market prices are loaded. This will result in updated prudential information being published. While we do not expect any issues in relation to participants who have a local Electricity Data Model, given the rarity of this event participants are encouraged to validate any impacts on their own downstream systems that may rely on this information. Report any impacts to AEMO on 1300 236 600
55068MARKET SYSTEMS30/09/2016 12:42:20 PM

CHG0040680 : Emergency Change - Retrospective revision of Electricity dispatch and trading price in accordance with market suspension pricing schedule due to South Australia market suspension

Service - Production Electricity Market Management System
Title - Retrospective revision of Electricity dispatch and trading price in accordance with market suspension pricing schedule due to South Australia market suspension
Change Starts-30/09/2016 13:00 AEST & Ends 01/10/2016 17:00 AEST
Description-AEMO has started to determine market prices that apply for the period of SA suspension (from 16:18 AEST28/09/16) These prices will be progressively loaded into AEMO's Market Systems and published to via Data Interchange and to AEMO's public website.
Timing - AEMO expects to start this process today and continue as market price calculations are progressively finalized for period of market suspension. AEMO will confirm with participants once this process has concluded, and anticipates this to be within 1 business day of the market suspension being lifted
Impact & Requirements - If you have downstream processes or systems that may have used existing prices please review to determine any potential impact. As this is a rare event AEMO would like to make sure participants are aware of these changes to market data and that this will result in a large volume of retrospective price data being delivered over AEMO's Data Interchange systems. AEMO will be staggering these data updates to minimise any impacts on AEMO and participants systems due to data volumes. The updated reports will modify existing dispatch and trading prices (previously indicated as firm) in participants Electricity Data Models. AEMO is also planning to rerun our prudential systems to account for updated prices once market prices are loaded. Which will result in updated prudential information being published. While we do not expect any issues, in relation to participants who have a local Electricity Data Model, given the rarity of this event participants are encouraged to validate any impacts on their own downstream systems that may rely on this information
Report any impacts to AEMO on 1300 236 600
55046POWER SYSTEM EVENTS29/09/2016 06:28:32 PM

AEMO advises that a Black system condition in the South Australia region is no longer current.

AEMO ELECTRICITY MARKET NOTICE.
AEMO advises that a Black system condition in the South Australia region is no longer current.

Refer Market notice 54985

AEMO has given clearance to restore the last load block in South Australia.

The Black System condition is lifted at 1825 hrs 29 September 2016.

The Spot Market will continue to be suspended, please refer to AEMO Market notice 55047

Manager NEM Real Time Operations
55029POWER SYSTEM EVENTS29/09/2016 05:42:28 AM

Update to South Australian system black restoration.

AEMO ELECTRICITY MARKET NOTICE.

POWER SYSTEM EVENT

At 1618 hrs Wednesday, 28 September the SA power system separated from the NEM and became black. A very large lightning storm was traveling across the state at the time. Refer MN# 54994
At 0520 hrs the restoration is proceeding with approx. 900 MW restored in the South Australian region - load will continue to be restored and further updates will be given when information becomes available.
Due to potential damage in the north of the state, restoration in this part of the network could be delayed.


Manager NEM Real Time Operations
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