Market Notices

54668RESERVE NOTICE05/08/2016 05:37:51 PM

Forecast Lack Of Reserve Level 2 (LOR2) in South Australia Region - 10 to 12 August 2016

AEMO ELECTRICITY MARKET NOTICE

Refer to AEMO Market Notice 54624

Forecast Lack Of Reserve Level 2 (LOR2) in South Australia Region - from 0700 hrs on 10/08/2016 to 1700 hrs on 12/08/2016

AEMO declares Forecast LOR2 conditions for the South Australia region during the planned outage of Heywood No.1 500 kV busbar in Victoria region, from 0700 hrs on 10/08/2016 to 1700 hrs on 12/08/2016.

On the occurrence of a credible contingency during this planned outage, South Australia region could separate from the rest of the NEM and is likely to result in interruptions to power supplies in South Australia.

There are sufficient capacity reserves in the South Australia region to meet electricity demand but following the next credible contingency it may not be possible to bring the required additional capacity into service in time to avoid automatic under-frequency load shedding causing interruptions to power supplies in South Australia.

Operations Planning
54667INTER-REGIONAL TRANSFER05/08/2016 05:08:42 PM

Inter-regional transfer limit variation QLD - 05 August 2016

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation QLD - 05 August 2016

The joining of the 275 kV lines in the QLD region, 809 South Pine - Rocklea and 838 South Pine - Blackwall have been re-energised and bypassed South Pine at 1700 hrs.

The outage is estimated to be completed in January 2017.

The following constraints are invoked for this outage

Q-NIL_TR_BYPASS_SP

The following constraints have been revoked for this outage

Q-X_BKSP_RLSP
Q-RLSP_809
Q-BKSP

The outage constraints contain the following interconnectors on the LHS

N-Q-MNSP1
NSW1-QLD1

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

Manager NEM Real Time Operations
54666INTER-REGIONAL TRANSFER05/08/2016 10:36:34 AM

Update Inter-Regional Transfer Limit Variation - Heywood Interconnector

AEMO ELECTRICITY MARKET NOTICE

Update Inter-Regional Transfer Limit Variation - Heywood Interconnector

Refer to Market Notice 54162

On advice from the Inter-Network test group and the AEMO Test Coordinator, the Black Range series capacitors are expected to be available for full service at 1200 hrs on 5 August 2016. On the same day, AEMO plans to commence Inter-Network tests at the stage two hold point two. For details, please refer the Inter-Network test program located on AEMO website (http://www.aemo.com.au/Stakeholder-Consultation/Consultations/Heywood-interconnector-upgrade---program-for-inter-network-tests)

The following transfer limits shall be applicable at this hold point:

Vic to SA via HYTS IC <= 600 MW
Vic to SA via HYTS plus Murraylink <= 820 MW

SA to Vic via HYTS IC <= 500 MW
SA to Vic via HYTS plus Murraylink <= 650 MW

In addition to the above hold point transfer limits, constraints applicable to normal service of the series capacitors will apply.
The above limits supersede the limits specified for this hold point in the Inter-Network test program.

All revisions to inter-regional transfer limits at various hold points of the Inter-Network tests will be advised in advance.

Ben Blake
AEMO Operations
54665INTER-REGIONAL TRANSFER04/08/2016 08:01:25 PM

Cancellation - Inter-Regional Transfer Limit Variation - Terranora Interconnector - Thursday, 4 August 2016

AEMO MARKET NOTICE

Cancellation - Inter-Regional Transfer Limit Variation - Terranora Interconnector - Thursday, 4 August 2016

Refer AEMO Electricity Market Notice 54664

AEMO has applied a constraint to the Terranora Interconnector to manage oscillations due to constraint action for the outage of Armidale - Coffs Harbour 96C 132 kV transmission line.

Constraint Set #N-Q-MNSP1_E revoked from 2000 hrs

This constraint is set to 100 MW in the direction Queensland to New South Wales and is expected to remain invoked until 2000 hrs

This constraint set contains an equation with the following interconnector on the LHS.

N-Q-MNSP1


Manager NEM Real Time Operations



54664INTER-REGIONAL TRANSFER04/08/2016 07:35:53 PM

Inter-Regional Transfer Limit Variation - Terranora Interconnector - Thursday, 4 August 2016

AEMO MARKET NOTICE

Inter-Regional Transfer Limit Variation - Terranora Interconnector - Thursday, 4 August 2016

AEMO has applied a constraint to the Terranora Interconnector to manage oscillations due to constraint action for the outage of Armidale - Coffs Harbour 96C 132 kV transmission line.

Constraint Set #N-Q-MNSP1_E invoked from 1915 hrs

This constraint is set to 100 MW in the direction Queensland to New South Wales and is expected to remain invoked until 2000 hrs

This constraint set contains an equation with the following interconnector on the LHS.

N-Q-MNSP1


Manager NEM Real Time Operations


54663INTER-REGIONAL TRANSFER04/08/2016 12:52:56 AM

Inter regional transfer limit variation Armidale - Coffs Habour (96C) 132kV Line (NSW)

AEMO ELECTRICITY MARKET NOTICE

Inter regional transfer limit variation Armidale - Coffs Habour (96C) 132kV Line (NSW)
Unplanned outage of the Armidale - Coffs Habour (96C) 132kV Line.
The following constraint set was invoked at 0045 hrs 4/8/16 until futher notice.
N-ARCH_96C
The constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1-QLD1
Manager NEM Real Time Operations
54662RECLASSIFY CONTINGENCY03/08/2016 04:33:03 PM

Cancellation of the Reclassification of a Non-Credible Contingency Event: Coffs Harbour to Raleigh (9W3) and Boambee South to Nambucca (9W7) 132kV Lines in NSW Region due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Coffs Harbour to Raleigh (9W3) and Boambee South to Nambucca (9W7) 132kV Lines in NSW Region due to Lightning.

Refer AEMO Electricity Market Notice 54657

There is no longer any lightning activity in the vicinity of the Coffs Harbour to Raleigh (9W3) and Boambee South to Nambucca (9W7) 132kV Lines.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 1630 hrs.



Manager NEM Real Time Operations

54661RECLASSIFY CONTINGENCY03/08/2016 04:32:27 PM

Cancellation of the Reclassification of a Non-Credible Contingency Event: Coffs Harbour to Raleigh (9W3) and Coffs Harbour to Boambee South (9W8) 132kV Lines in NSW Region due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Coffs Harbour to Raleigh (9W3) and Coffs Harbour to Boambee South (9W8) 132kV Lines in NSW Region due to Lightning.

Refer AEMO Electricity Market Notice 54656

There is no longer any lightning activity in the vicinity of the Coffs Harbour to Raleigh (9W3) and Coffs Harbour to Boambee South (9W8) 132kV Lines.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 1630 hrs.

Manager NEM Real Time Operations
54660MARKET SYSTEMS03/08/2016 02:59:38 PM

CHG0040016: Planned System Change - AEMO NSW Datatcenter Internet Link Upgrade

Change Number: CHG0040016

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: Wide Area Network

Change Title: Planned System Change - AEMO NSW Datatcenter Internet Link Upgrade

Change Start Date & Time: 08/08/2016 10:00:00 AEST

Change End Date & Time: 09/08/2016 12:00:00 AEST

Outage Start Date & Time: 09/08/2016 10:00:00 AEST

Outage End Date & Time: 09/08/2016 12:00:00 AEST

Change Description:

The AEMO NSW datacenter internet telecommunications service will experience an outage as part of an upgraded to this service.

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 - Upto 30 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 - Upto 30 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.

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