Market Notices

87793INTER-REGIONAL TRANSFER01/07/2021 05:05:12 PM

Inter-regional transfer limit variation - Liddell- Tamworth 84 330 kV Line - NSW region - 01/07/2021

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Liddell- Tamworth 84 330 kV Line - NSW region - 01/07/2021

A planned outage of Liddell- Tamworth 84 330 kV Line in the NSW region was scheduled from 0700 hrs 01/07/2021 to 1830 hrs 01/07/2021.

The outage has been returned to service at 1655 hrs 01/07/2021

Constraint set(s) revoked: N-LDTW_84


This constraint set(s) contains equations with the following interconnectors on the LHS.

N-Q-MNSP1
NSW1 - QLD1
T-V-MNSP1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations


87792RESERVE NOTICE01/07/2021 05:45:31 PM

Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 01/07/2021

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 01/07/2021

An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1730 hrs.

The Actual LOR1 condition is forecast to exist until 1800 hrs.

The capacity reserve requirement is 1470 MW

The minimum capacity reserve available is 1433 MW

Manager NEM Real Time Operations
87791SETTLEMENTS RESIDUE01/07/2021 04:30:18 PM

[EventId:202107011630_NRM_QLD1_NSW1_stopped] NEGRES CONSTRAINT NRM_QLD1_NSW1 ceased operating from 01 July 2021 16:30

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1630 hrs on 1 July 2021

CANCELLATION - ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 1 July 2021.

Refer to market notice: 87786

AEMO has ceased taking action to minimize the further accumulation of negative settlement residues on the QLD to NSW directional interconnector.

The negative residue constraint NRM_QLD1_NSW1 ceased operating at 1630 hrs on 1 July 2021.

This is an AEMO autogenerated Market Notice.
87790MARKET INTERVENTION01/07/2021 04:01:28 PM

Direction - SA region 01/07/2021

AEMO ELECTRICITY MARKET NOTICE.

Direction - SA region 01/07/2021

In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).

The direction was necessary to maintain the power system in a secure operating state.

AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.

The issue of the direction commences an AEMO intervention event. AEMO declares all dispatch intervals during the event to be intervention dispatch intervals, commencing from the interval ending 1605 hrs on 01/07/2021.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations



87788INTER-REGIONAL TRANSFER01/07/2021 03:42:31 PM

Inter-regional transfer limit variation - Dederang- South Morang No1 330 kV Line - Victoria region - 01/07/2021

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Dederang- South Morang No1 330 kV Line - Victoria region - 01/07/2021

A planned outage of Dederang- South Morang No1 330 kV Line in the Victoria region was scheduled for completion at 1700 hrs 05/07/2021.

The outage has been returned to service 1520 hrs 01/07/2021.

Constraint set(s) revoked: V-DDSM, V-DBUSS_L and V-DBUSS_T

This constraint set(s) contains equations with the following interconnectors on the LHS.

N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
T-V-MNSP1
V-SA
V-S-MNSP1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
87787INTER-REGIONAL TRANSFER01/07/2021 03:17:28 PM

Inter-regional transfer limit variation - Liddell- Tamworth 84 330 kV Line - NSW region - 01/07/2021

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Liddell- Tamworth 84 330 kV Line - NSW region - 01/07/2021

A planned outage of Liddell- Tamworth 84 330 kV Line in the NSW region was scheduled from 0700 hrs 01/07/2021 to 1700 hrs 01/07/2021.

The outage has been rescheduled for 0700 hrs 01/07/2021 to 1830 hrs 01/07/2021.

Constraint set(s) invoked: N-LDTW_84

This constraint set(s) contains equations with the following interconnectors on the LHS.

N-Q-MNSP1
NSW1 - QLD1
T-V-MNSP1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations




87786SETTLEMENTS RESIDUE01/07/2021 03:05:33 PM

[EventId:202107011505_NRM_QLD1_NSW1_started] NEGRES CONSTRAINT NRM_QLD1_NSW1 started operating from 01 July 2021 15:05

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1505 hrs on 1 July 2021

ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 1 July 2021.

Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the QLD to NSW directional interconnector.

The negative residue constraint set NRM_QLD1_NSW1 commenced operating from 1505 hrs on 1 July 2021.

This constraint set contains an equation with the following interconnectors on the LHS:
N-Q-MNSP1
NSW1-QLD1

The RHS of the constraint equation may be adjusted to manage residues.


This is an AEMO autogenerated Market Notice.
87785RESERVE NOTICE01/07/2021 03:11:11 PM

PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 01/07/2021

AEMO ELECTRICITY MARKET NOTICE

AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following period:

From 1700 hrs to 1830 hrs 01/07/2021.
The forecast capacity reserve requirement is 1430 MW.
The minimum capacity reserve available is 1125 MW.

Manager NEM Real Time Operations


87784MARKET INTERVENTION01/07/2021 02:17:42 PM

Possible intervention to manage power system security in South Australia (SA) Region

AEMO ELECTRICITY MARKET NOTICE

Possible intervention to manage power system security in South Australia (SA) Region

The synchronous generating units currently expected to be synchronised in SA from 0100 hrs 02/07/2021 to 1530 hrs 02/07/2021 will be inadequate to maintain sufficient system strength in SA and hence a secure operating state.

AEMO estimates that, in the absence of sufficient market response by 1600 hrs 01/07/2021, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.

Manager NEM Real Time Operations
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