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87721PRICES SUBJECT TO REVIEW28/06/2021 04:35:11 PM
[EventId:202106281640_review] Prices for interval 28-Jun-2021 16:40 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1635 hrs on 28 June 2021
PRICES ARE SUBJECT TO REVIEW for dispatch interval 28-Jun-2021 16:40.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1635 hrs on 28 June 2021
PRICES ARE SUBJECT TO REVIEW for dispatch interval 28-Jun-2021 16:40.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
87720PRICES SUBJECT TO REVIEW28/06/2021 04:30:10 PM
[EventId:202106281635_review] Prices for interval 28-Jun-2021 16:35 are subject to review
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1630 hrs on 28 June 2021
PRICES ARE SUBJECT TO REVIEW for dispatch interval 28-Jun-2021 16:35.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
Issued by Australian Energy Market Operator Ltd at 1630 hrs on 28 June 2021
PRICES ARE SUBJECT TO REVIEW for dispatch interval 28-Jun-2021 16:35.
AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs
This is an AEMO autogenerated Market Notice.
87719SETTLEMENTS RESIDUE28/06/2021 04:25:16 PM
[EventId:202106281625_NRM_QLD1_NSW1_started] NEGRES CONSTRAINT NRM_QLD1_NSW1 started operating from 28 June 2021 16:25
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 1625 hrs on 28 June 2021
ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 28 June 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 1625 hrs on 28 June 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.
Issued by Australian Energy Market Operator Ltd at 1625 hrs on 28 June 2021
ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 28 June 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 1625 hrs on 28 June 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.
87718RESERVE NOTICE28/06/2021 04:20:01 PM
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 28/06/2021
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 87717 is cancelled at 1615 hrs 28/06/2021.
Manager NEM Real Time Operations
The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 87717 is cancelled at 1615 hrs 28/06/2021.
Manager NEM Real Time Operations
87717RESERVE NOTICE28/06/2021 03:49:41 PM
PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region on 28/06/2021
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 1730 hrs to 1830 hrs 28/06/2021.
The forecast capacity reserve requirement is 1430 MW.
The minimum capacity reserve available is 1403 MW.
Manager NEM Real Time Operations
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 1730 hrs to 1830 hrs 28/06/2021.
The forecast capacity reserve requirement is 1430 MW.
The minimum capacity reserve available is 1403 MW.
Manager NEM Real Time Operations
87716POWER SYSTEM EVENTS28/06/2021 02:06:28 PM
Non-credible contingency event - Qld region - 28/06/2021
AEMO ELECTRICITY MARKET NOTICE.
At 1329 hrs 28/06/21 the H76 Wandoan South No1 132 kV bus tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
At 1329 hrs 28/06/21 the H76 Wandoan South No1 132 kV bus tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
87715GENERAL NOTICE28/06/2021 09:40:49 AM
Daily planned outage of Heywood-Mortlake PS 500kV line in Victoria region on 12th, 13th, 14th July 2021
AEMO ELECTRICITY MARKET NOTICE
This market notice is FOR INFORMATION ONLY.
Heywood-Mortlake PS 500kV line in Victoria Region is planned out of service on the following days.
-12/07/2021 on 0700hrs to 1900hrs
-13/07/2021 on 0700hrs to 1900hrs
-14/07/2021 on 0700hrs to 1900hrs
A credible contingency event during this planned outage could cause synchronous separation of the South Australia (SA) region from the rest of the NEM. If separation occurs, load may be interrupted due to the operation of the Automatic Under Frequency Load Shedding (AUFLS) scheme in SA.
The credible separation contingency is managed as follows:
When power transfer is from SA to Victoria (Vic), contingency lower FCAS will be sourced from SA.
When power transfer is from Vic to SA, due to the 47-52Hz island separation frequency band advised by the SA jurisdiction, contingency raise FCAS is not sourced in SA and the AUFLS scheme may respond to low frequency events.
Power transfer will be restricted on Victoria - South Australia interconnector (Heywood interconnector).
Forecast capacity reserves in the SA region are currently sufficient to meet electricity demand during the planned outage.
The following constraint sets have been invoked for this outage:
I-VS_050
S-X_BC_CP
V-HYMO
Refer AEMO Network Outage Schedule (NOS) for further details.
AEMO Operations
This market notice is FOR INFORMATION ONLY.
Heywood-Mortlake PS 500kV line in Victoria Region is planned out of service on the following days.
-12/07/2021 on 0700hrs to 1900hrs
-13/07/2021 on 0700hrs to 1900hrs
-14/07/2021 on 0700hrs to 1900hrs
A credible contingency event during this planned outage could cause synchronous separation of the South Australia (SA) region from the rest of the NEM. If separation occurs, load may be interrupted due to the operation of the Automatic Under Frequency Load Shedding (AUFLS) scheme in SA.
The credible separation contingency is managed as follows:
When power transfer is from SA to Victoria (Vic), contingency lower FCAS will be sourced from SA.
When power transfer is from Vic to SA, due to the 47-52Hz island separation frequency band advised by the SA jurisdiction, contingency raise FCAS is not sourced in SA and the AUFLS scheme may respond to low frequency events.
Power transfer will be restricted on Victoria - South Australia interconnector (Heywood interconnector).
Forecast capacity reserves in the SA region are currently sufficient to meet electricity demand during the planned outage.
The following constraint sets have been invoked for this outage:
I-VS_050
S-X_BC_CP
V-HYMO
Refer AEMO Network Outage Schedule (NOS) for further details.
AEMO Operations
87714INTER-REGIONAL TRANSFER28/06/2021 09:24:47 AM
Inter-regional transfer limit variation - Lismore 132 kV SVC - NSW region - 28/06/2021
AEMO ELECTRICITY MARKET NOTICE
At 0913 hrs 28/06/2021 there was an unplanned outage of the Lismore 132 kV SVC.
The following constraint set invoked at 0920 hrs 28/06/2021
N-LS_VC1
This constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1 - QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
At 0913 hrs 28/06/2021 there was an unplanned outage of the Lismore 132 kV SVC.
The following constraint set invoked at 0920 hrs 28/06/2021
N-LS_VC1
This constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1 - QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
87713PRICES UNCHANGED28/06/2021 01:11:36 AM
[EventId:202106280045_confirmed] Prices for interval 28-Jun-2021 00:45 are now confirmed
AEMO ELECTRICITY MARKET NOTICE
Issued by Australian Energy Market Operator Ltd at 0105 hrs on 28 June 2021
PRICES ARE NOW CONFIRMED for dispatch interval 28-Jun-2021 00:45.
In accordance with Market Notice 87702 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.
Issued by Australian Energy Market Operator Ltd at 0105 hrs on 28 June 2021
PRICES ARE NOW CONFIRMED for dispatch interval 28-Jun-2021 00:45.
In accordance with Market Notice 87702 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.