Market Notices

54631INTER-REGIONAL TRANSFER31/07/2016 01:17:01 AM

Inter-regional transfer limit variation for VSAT Stability Limit - Tas Region - 31 July 2016

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation for VSAT Stability Limit - Tas Region - 31 July 2016

The AEMO VSAT application is indicating instability across the Tas North to Tas South cutset .

The following constraint have been invoked to manage the violation of the voltage stability limit.

Constraint I-TV_470 nvoked form 0110 hrs unti further notice

Constraints have the following interconnectors on the LHS

T-V-MNSP1

Manager NEM Real Time Operations
54630NON-CONFORMANCE29/07/2016 02:05:10 PM

NON-CONFORMANCE Region QLD1 Friday, 29 July 2016

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE QLD1 Region Friday, 29 July 2016

AEMO declared a schedule generating unit non-conforming

Unit: STAN-1
Duration: 29/07/2016 14:00 to 29/07/2016 14:05
Amount: 12 MW
Constraint: NC-Q_STAN-1

Auto-generated on behalf of Manager NEM Real Time Operations
54629INTER-REGIONAL TRANSFER29/07/2016 11:51:37 AM

Inter-regional transfer limit variation - Vic region - 29/07/16

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Vic region - 29/07/16

An unplanned outage of the Keilor A4 500/220 kV Transformer in the Vic region occurred at 1136 hrs.

The following constraint set has been invoked for this outage

V-KTTX_A2_OR_A4_R

The outage constraints contain the following interconnectors on the LHS

T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1

Refer to AEMO Network Outage Scheduler (NOS) for further details.

Manager NEM Real Time Operations
54628MARKET SYSTEMS28/07/2016 01:55:32 PM

Planned System Maintenance - Optus Planned - AEMO NSW Internet link Scheduled Outage

Change Number: CHG0039949

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Real Time Network

Change Title: Planned System Maintenance - Optus Planned - AEMO NSW Internet link Scheduled Outage

Change Start Date & Time: 02/08/2016 00:00:00 AEST

Change End Date & Time: 02/08/2016 06:00:00 AEST

Outage Start Date & Time:

Outage End Date & Time:

Change Description:

Planned Telco Maintenance. Optus have a planned outage which will affect the AEMO NSW Internet link.

Environment: Production

Participant Impact and Requirements:

Impacts and User Requirements

The following impacts are expected to participant connectivity during this planned outage:

IPWAN Participants - IPWAN Participants - Nil

Lan-2-Lan VPN Participants - Up to 20 minutes to participants whom have established their VPN connection/s via the AEMO NSW datacenter termination point (202.44.78.10)
Note: Participants are encouraged to ensure their VPN connections are already established or are configured (as per AEMO best practice) to automatically failover to the alternate AEMO QLD datacenter termination point (202.44.76.10) prior to this scheduled outage.

Remote Access VPN Participants - Up to 20 minutes to 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)
Note: Participants are encouraged 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.
54627NON-CONFORMANCE28/07/2016 06:35:13 AM

NON-CONFORMANCE Region SA1 Thursday, 28 July 2016

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE SA1 Region Thursday, 28 July 2016

AEMO declared a schedule generating unit non-conforming

Unit: PPCCGT
Duration: 28/07/2016 06:30 to 28/07/2016 06:35
Amount: 25 MW
Constraint: NC-S_PPCCGT

Auto-generated on behalf of Manager NEM Real Time Operations
54626GENERAL NOTICE28/07/2016 09:59:53 AM

Network Augmentation De-commissioned - QLD Region - 28 July 2016

AEMO ELECTRICITY MARKET NOTICE

Network Augmentation De-commissioned - QLD Region - 28 July 2016

The following transmission equipment in the Queensland region has been de-commissioned from 0928 hrs ;

Mackay - Proserpine 7126/2 132 kV Line.

Manager NEM Real Time Operations
54625RESERVE NOTICE26/07/2016 02:42:58 PM

RESERVE NOTICE MT PASA PUBLICATION 22 JULY 2016

AEMO ELECTRICITY MARKET NOTICE

The MT PASA RELIABILITY_LRC results published on 26 July 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 54596 published on 22 July 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
54624GENERAL NOTICE26/07/2016 12:52:55 PM

Planned outage of Heywood No.1 500kV Bus in Victoria region from 10/08/2016 0700 hrs to 12/08/2016 1700 hrs

AEMO ELECTRICITY MARKET NOTICE.

This market notice is FOR INFORMATION ONLY.

The Heywood No.1 500 kV busbar in Victoria Region is planned out of service from 0700 hrs on 10 August 2016 to 1700 hrs on 12 August 2016. During this outage, Heywood 500/275 kV M1 transformer will be off-loaded and Heywood - Tarrone - Alcoa Portland No.1 500 kV line will be open at Heywood.

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)
S-BOTH_BLKRG_C_OS
V-HYTX_M12
V-HY_500BUS

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

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

Operations Planning
54623INTER-REGIONAL TRANSFER26/07/2016 10:42:39 AM

Update Inter-regional transfer limit variation SA - 26 July 2016

AEMO ELECTRICITY MARKET NOTICE

Update Inter-regional transfer limit variation SA - 26 July 2016

The South East - Tailem Bend No.2 275kV line in the SA region has been returned to service at 1035 hrs

The following constraint set has been revoked at 1040 hrs

S-TBSE_1

The outage constraints contain the following interconnectors on the LHS

NSW1-QLD1
V-SA

Refer MN No. 54617 and the AEMO Network Outage Scheduler (NOS) for further details.

Manager NEM Real Time Operations
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