Market Notices

76288INTER-REGIONAL TRANSFER13/07/2020 05:50:21 AM

Cancellation - Inter-regional transfer limit variation: Hazelwood - South Morang No. 1 500 kV Line (Vic) - Voltage Control

AEMO ELECTRICITY MARKET NOTICE

Cancellation - Inter-regional transfer limit variation: Hazelwood - South Morang No. 1 500 kV Line (Vic) - Voltage Control

Refer AEMO Electricity Market Notice 76252

The Hazelwood - South Morang No.1 500 kV Line has been returned to service.

The following constraint set was revoked at 0550 hrs 13/07/2020

V-HWSM

The constraint set contains equations with the following interconnectors on the LHS.

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


Manager NEM Real Time Operations



76287INTER-REGIONAL TRANSFER13/07/2020 12:53:45 AM

Inter-regional transfer limit variation - Black Range No. 2 Series Capacitor - SA Region

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Black Range No. 2 Series Capacitor - SA Region

At 0029 hrs 13/07/2020 there was an unplanned outage of the Black Range No.2 275 kV Series Capacitor.

The following constraint set was invoked from 0045 hrs

S-BC_CP

The constraint sets contain equations with the following interconnector on the LHS.

V-SA
V-S-MNSP1

See Network Outage Scheduler (NOS) for further details.

Manager NEM Real Time Operations




76286RECLASSIFY CONTINGENCY12/07/2020 08:43:55 PM

Cancellation of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

Region: NSW1

Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Cancellation time: 12/07/2020 20:43

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 76285

Auto-generated on behalf of Manager NEM Real Time Operations
76285RECLASSIFY CONTINGENCY12/07/2020 07:42:51 PM

Reclassification of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.

Region: NSW1

Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Duration: 12/07/2020 19:42 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
76284RECLASSIFY CONTINGENCY12/07/2020 06:08:55 PM

Cancellation of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

Region: NSW1

Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Cancellation time: 12/07/2020 18:08

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 76283

Auto-generated on behalf of Manager NEM Real Time Operations
76283RECLASSIFY CONTINGENCY12/07/2020 03:06:05 PM

Reclassification of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.

Region: NSW1

Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Duration: 12/07/2020 15:06 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
76282INTER-REGIONAL TRANSFER12/07/2020 07:37:54 AM

Cancellation - Inter-regional transfer limit variation - Keilor A2, A3 and A4 500/220 kV transformers (Vic) - Voltage Control

AEMO ELECTRICITY MARKET NOTICE

The Keilor A2, A3 and A4 500/220 kV transformers have been restored in the Victoria region.

Refer to MN 76281

The following constraint set was revoked at 0655 hrs

V-X_HWSM_KTTX

The constraint set contains equations with the following interconnectors on the LHS.

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

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


NEM Real Time Operations Manager
76281INTER-REGIONAL TRANSFER12/07/2020 03:45:24 AM

Inter-regional transfer limit variation - Keilor A2, A3 and A4 500/220 kV transformers (Vic) - Voltage Control

AEMO ELECTRICITY MARKET NOTICE

The Keilor A2, A3 and A4 500/220 kV transformers has been off-loaded to manage voltages in the Victoria region.

The following constraint set was invoked at 0350 hrs

V-X_HWSM_KTTX

The constraint set contains equations with the following interconnectors on the LHS.

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

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


NEM Real Time Operations Manager
76280PRICES UNCHANGED12/07/2020 02:31:47 AM

[EventId:202007120205_confirmed] Prices for interval 12-Jul-2020 02:05 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 0230 hrs on 12 July 2020

PRICES ARE NOW CONFIRMED for dispatch interval 12-Jul-2020 02:05.

In accordance with Market Notice 76269 AEMO has reviewed this dispatch interval and determined that:
- Manifestly Incorrect Inputs did not apply

Prices remain unchanged.


This is an AEMO autogenerated Market Notice.
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