Market Notices

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

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Tuesday, 14 June 2016

AEMO declared a schedule generating unit non-conforming

Unit: MP2
Duration: 14/06/2016 18:25 to 14/06/2016 18:35
Amount: 82 MW
Constraint: NC-N_MP2

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Tuesday, 14 June 2016

AEMO declared a schedule generating unit non-conforming

Unit: YABULU2
Duration: 14/06/2016 15:30 to 14/06/2016 15:40
Amount: -14 MW
Constraint: NC-Q_YABULU2

Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

The MT PASA RELIABILITY_LRC results published on 14 June 2016 forecast shows low reserve conditions (LRC) in South Australia for Summer 2016-17 and Summer 2017-18. AEMO will continue to monitor the situation and take appropriate actions, if necessary.

The MT PASA results for the next 12 months are summarised at:
http://www.aemo.com.au/Electricity/Data/Forecast-Supply-and-Demand/Medium-Term-Outlook

This notice supersedes Market Notice 53840 published on 10 June 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 156 MW, NSW 422 MW, VIC 245 MW, SA 167 MW and TAS 73 MW

Winter: QLD 156 MW, NSW 422 MW, VIC 185 MW, SA 167 MW and TAS 73 MW

Supply Planning
AEMO