Market Notices

76175INTER-REGIONAL TRANSFER04/07/2020 01:48

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

AEMO ELECTRICITY MARKET NOTICE

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

The Hazelwood - South Morang No 1 500 kV Line has been de-energised to manage voltages in the Victoria region.

The following constraint set was invoked at 0145 hrs

V-HWSM

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

Manager NEM Real Time Operations

76174RECLASSIFY CONTINGENCY03/07/2020 07:24

Cancellation of a Non-Credible Contingency Event: Bulli Creek - Dumaresq 8L 330KV line and Bulli Creek - Dumaresq 8M 330KV line in QLD1 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: QLD1

Lines: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV

Cancellation time: 03/07/2020 19:24

Constraint set(s) revoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1


Refer AEMO Electricity Market Notice 76171

Auto-generated on behalf of Manager NEM Real Time Operations
76173RECLASSIFY CONTINGENCY03/07/2020 06:59

Reclassification of a Non Credible Contingency Event: Loss of multiple generating units Vic region 03/07/2020

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non Credible Contingency Event: Loss of multiple generating units Vic region - 03/07/2020

Based on advice received from Energy Australia on the existence of an abnormal condition, AEMO has reclassified the simultaneous loss of Yallourn W No.1, No.3 and No.4 generating units as a credible contingency event. Yallourn No.2 Unit is not affected by this abnormal condition.

The nature of the abnormal condition is such that the concurrent loss of these three generating units is likely, in the event of a network fault close to Yallourn W power station.

The following constraint was invoked at 1900 hrs 03/07/2020 :

V-YWPS_134_N-2

The constraint set contain equations with the following interconnectors on the LHS

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

Manager NEM Real Time Operations
76172INTER-REGIONAL TRANSFER03/07/2020 04:36

Planned outage of the Muswellbrook - Tamworth 88 330 kV line - NSW region

AEMO ELECTRICITY MARKET NOTICE.

The planned outage of the Muswellbrook - Tamworth 88 330 kV Line was completed early.

The following constraint set was revoked at 1640 hrs 03/07/2020

N-MUTW_88

The constraint set contain equations with the following interconnectors on the LHS

NSW1-QLD1
N-Q_MNSP1

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

Manager NEM Real Time Operations
76171RECLASSIFY CONTINGENCY03/07/2020 03:22

Reclassification of a Non-Credible Contingency Event: Bulli Creek - Dumaresq 8L 330KV line and Bulli Creek - Dumaresq 8M 330KV line in QLD1 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: QLD1

Lines: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV

Duration: 03/07/2020 15:22 until further notice

Constraint set(s) invoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1


Auto-generated on behalf of Manager NEM Real Time Operations
76170PRICES UNCHANGED02/07/2020 02:31

[EventId:202007021410_confirmed] Prices for interval 02-Jul-2020 14:10 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1430 hrs on 2 July 2020

PRICES ARE NOW CONFIRMED for dispatch interval 02-Jul-2020 14:10.

In accordance with Market Notice 76160 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.
76169PRICES UNCHANGED02/07/2020 02:31

[EventId:202007021430_confirmed] Prices for interval 02-Jul-2020 14:30 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1430 hrs on 2 July 2020

PRICES ARE NOW CONFIRMED for dispatch interval 02-Jul-2020 14:30.

In accordance with Market Notice 76164 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.
76168PRICES UNCHANGED02/07/2020 02:32

[EventId:202007021425_confirmed] Prices for interval 02-Jul-2020 14:25 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1430 hrs on 2 July 2020

PRICES ARE NOW CONFIRMED for dispatch interval 02-Jul-2020 14:25.

In accordance with Market Notice 76163 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.
76167PRICES UNCHANGED02/07/2020 02:31

[EventId:202007021420_confirmed] Prices for interval 02-Jul-2020 14:20 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1430 hrs on 2 July 2020

PRICES ARE NOW CONFIRMED for dispatch interval 02-Jul-2020 14:20.

In accordance with Market Notice 76162 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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