Market Notices

54901MARKET SYSTEMS14/09/2016 12:06:19 PM

CHG0040404 : Planned System Maintenance - Electricity MMS Pre-Production Bay Transfer

Change Number: CHG0040404

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Electricity Market Management System

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

Change Start Date & Time: 20/09/2016 14:00:00 AEST

Change End Date & Time: 20/09/2016 15:00:00 AEST


Outage Start Date & Time:

Outage End Date & Time:


Change Description:

The EMMS Pre-Production Database is to be transferred to the alternate bay to support the release activities.

Environment: Pre-Production

Participant Impact and Requirements:

Awareness of this maintenance. The transfer is not expected to have any impact, however, 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.
54900MARKET SYSTEMS14/09/2016 12:04:11 PM

CHG0040427: Planned System Change - GAS Supply Hub - Pre-production

Change Number: CHG0040427

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Gas Supply Hub

Change Title: Planned System Change - GAS Supply Hub - Pre-production

Change Start Date & Time: 19/09/2016 10:00:00 AEST

Change End Date & Time: 27/09/2016 17:00:00 AEST


Outage Start Date & Time:

Outage End Date & Time:


Change Description:

This change is implemented to apply updates to Pre-production Gas Supply Hub.

Environment: Pre-Production

Participant Impact and Requirements:

No Impact. Awareness of this change.

Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
54899NON-CONFORMANCE13/09/2016 02:35:10 PM

NON-CONFORMANCE Region QLD1 Tuesday, 13 September 2016

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Tuesday, 13 September 2016

AEMO declared a schedule generating unit non-conforming

Unit: STAN-2
Duration: 13/09/2016 14:30 to 13/09/2016 14:35
Amount: -13 MW
Constraint: NC-Q_STAN-2

Auto-generated on behalf of Manager NEM Real Time Operations
54898RESERVE NOTICE13/09/2016 02:53:06 PM

RESERVE NOTICE MT PASA PUBLICATION 13 SEPTEMBER 2016

AEMO ELECTRICITY MARKET NOTICE

The MT PASA RELIABILITY_LRC results published on 13 September 2016 forecast shows low reserve conditions (LRC) in South Australia for Summer 2016-17 and Summer 2017-18. The results also shows LRC in Queensland for Summer 2017-18. AEMO will continue to monitor the situation and take appropriate actions, if necessary.

The MT PASA results for the next 24 months are summarised at:
http://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Data-dashboard#medium-term-outlook

This notice supersedes Market Notice 54854 published on 06 September 2016.

Please find the following information on some key inputs used in MT PASA:

Static minimum reserve levels (MRLs) have been specified for QLD, NSW and TAS regions as follows:

QLD: 913 MW
NSW: -1564 MW
TAS: 144 MW

The following optimum shared minimum reserve levels between Victoria and South Australia regions have been specified:

VIC Reserve >= 205.00
5.88 * VIC Reserve + SA Reserve >= 1237.88
1.33 * VIC Reserve + SA Reserve >= 228.00
0.43 * VIC Reserve + SA Reserve >= -40.53
0.23 * VIC Reserve + SA Reserve >= -147.55
SA Reserve >= -368.00

In order to remain consistent with the calculation of the minimum reserve levels, the following interconnector headroom constraints (net import/export limit constraints) have also been applied in MT PASA:

QLD: 0 MW of maximum net import into QLD.
NSW: 330 MW of minimum net export from NSW.
VIC: 940MW of maximum net import into VIC.
SA: 0 MW of maximum net import into SA.

Demand Side Participation included in MT PASA are:

Summer: QLD 147.5 MW, NSW 248.5 MW, VIC 141.8 MW, SA 120.2 MW and TAS 43 MW

Winter: QLD 147.5 MW, NSW 248.5 MW, VIC 85 MW, SA 120.2 MW and TAS 43 MW

Supply Planning
AEMO
54897RESERVE NOTICE13/09/2016 08:46:34 AM

Actual LOR2 South Australia Region - 13 Sept 16

AEMO ELECTRICITY MARKET NOTICE

Actual LOR2 South Australia Region - 13 Sept 16
Refer AEMO Electricity Market Notice 54865
An actual LOR2 condition has been declared for the South Australia region from 830 hrs and is forecast to continue until 1700 hrs during a planned outage of Moorabool - Mortlake 500 kV line in the Victoria region.
If a credible contingency event occurs in this period the South Australia region would separate from the rest of the NEM and is likely to result in interruptions to power supplies.
There are sufficient capacity reserves in the South Australia region to meet electricity demand but it may not be possible to bring the required additional capacity into service in time to avoid automatic under-frequency load shedding causing power interruptions.

Manager NEM Real Time Operations
54896NON-CONFORMANCE12/09/2016 03:45:17 PM

NON-CONFORMANCE Region QLD1 Monday, 12 September 2016

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Monday, 12 September 2016

AEMO declared a schedule generating unit non-conforming

Unit: YABULU2
Duration: 12/09/2016 15:40 to 12/09/2016 15:45
Amount: 22 MW
Constraint: NC-Q_YABULU2

Auto-generated on behalf of Manager NEM Real Time Operations
54895NON-CONFORMANCE12/09/2016 01:10:10 PM

NON-CONFORMANCE Region VIC1 Monday, 12 September 2016

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE VIC1 Region Monday, 12 September 2016

AEMO declared a schedule generating unit non-conforming

Unit: YWPS4
Duration: 12/09/2016 11:55 to 12/09/2016 13:10
Amount: 52 MW
Constraint: NC-V_YWPS4

Auto-generated on behalf of Manager NEM Real Time Operations
54894NON-CONFORMANCE12/09/2016 11:35:14 AM

NON-CONFORMANCE Region QLD1 Monday, 12 September 2016

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Monday, 12 September 2016

AEMO declared a schedule generating unit non-conforming

Unit: BRAEMAR2
Duration: 12/09/2016 11:30 to 12/09/2016 11:35
Amount: -27 MW
Constraint: NC-Q_BRAEMAR2

Auto-generated on behalf of Manager NEM Real Time Operations
54893GENERAL NOTICE12/09/2016 09:02:10 AM

Planned outage of Heywood to South East No.1 275 kV line in South Australia and Victoria regions from 11/10/2016 0700 hrs to 13/10/2016 1700 hrs

AEMO ELECTRICITY MARKET NOTICE.

This market notice is FOR INFORMATION ONLY.

The Heywood to South East No.1 275 kV line in South Australia and Victoria regions is planned out of service from 0700 hrs on 11 October 2016 to 1700 hrs on 13 October 2016. During this outage, Heywood 500/275 kV M1 transformer will be off-loaded

During this outage, a credible contingency can separate South Australia region from the rest of the NEM.

Under these circumstances, 35 MW of Raise and Lower regulation FCAS will be sourced from South Australia for the duration of this outage. In addition, consistent with AEMO existing procedures, adequate contingency FCAS lower requirements will also be sourced from South Australia at times when power transfer is from South Australia to Victoria.

The following constraint sets have been invoked for this outage:

F-I-HYSE (includes F-S_LREG_0035 and F-S_RREG_0035)
I-HYSE
S-X_BC_CP
V-HYTX_M12

Refer AEMO Network Outage Schedule (NOS) for further details.

AEMO will continue monitoring this proposed outage and will update the Market accordingly.


Terry Liu
AEMO Operations
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