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70894RECLASSIFY CONTINGENCY03/11/2019 07:59:50 AM
Cancellation of a Non-Credible Contingency Event: Dederang - Glenrowan No.1 220 kV line and Dederang - Glenrowan No.3 220 kV line in VIC1 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: VIC1
Lines: Dederang - Glenrowan No.1 220 kV and Dederang - Glenrowan No.3 220 kV
Cancellation time: 03/11/2019 07:59
Constraint set(s) revoked:
V-DDGN_N-2 Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1
VIC1-NSW1
Refer AEMO Electricity Market Notice 70892
Auto-generated on behalf of Manager NEM Real Time Operations
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: VIC1
Lines: Dederang - Glenrowan No.1 220 kV and Dederang - Glenrowan No.3 220 kV
Cancellation time: 03/11/2019 07:59
Constraint set(s) revoked:
V-DDGN_N-2 Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1
VIC1-NSW1
Refer AEMO Electricity Market Notice 70892
Auto-generated on behalf of Manager NEM Real Time Operations
70893RECLASSIFY CONTINGENCY03/11/2019 07:15:50 AM
Reclassification of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 03/11/2019 07:15 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 03/11/2019 07:15 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
70892RECLASSIFY CONTINGENCY03/11/2019 06:57:00 AM
Reclassification of a Non-Credible Contingency Event: Dederang - Glenrowan No.1 220 kV line and Dederang - Glenrowan No.3 220 kV line in VIC1 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: VIC1
Lines: Dederang - Glenrowan No.1 220 kV and Dederang - Glenrowan No.3 220 kV
Duration: 03/11/2019 06:56 until further notice
Constraint set(s) invoked:
V-DDGN_N-2 Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1
VIC1-NSW1
Auto-generated on behalf of Manager NEM Real Time Operations
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: VIC1
Lines: Dederang - Glenrowan No.1 220 kV and Dederang - Glenrowan No.3 220 kV
Duration: 03/11/2019 06:56 until further notice
Constraint set(s) invoked:
V-DDGN_N-2 Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1
VIC1-NSW1
Auto-generated on behalf of Manager NEM Real Time Operations
70891INTER-REGIONAL TRANSFER03/11/2019 12:54:06 AM
Inter-regional transfer limit variation: Hazelwood - South Morang No 1 500 kV Line (VIC) - Voltage Control
AEMO ELECTRICITY MARKET NOTICE
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 0050 hrs 03/11/2019
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
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 0050 hrs 03/11/2019
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
70890MARKET INTERVENTION02/11/2019 02:07:16 PM
AEMO Intervention Event - Intervention price dispatch intervals - 02/11/2019
AEMO ELECTRICITY MARKET NOTICE.
AEMO Intervention Event - Intervention price dispatch intervals - 02/11/2019
Refer AEMO Electricity Market Notice no. 70889
An AEMO Intervention Event occurred when AEMO issued a direction to maintain the power system in a secure operating state.
The AEMO Intervention Event commenced in the 1405 hrs dispatch interval and is forecast to apply until 1700 hrs 03/11/2019.
AEMO declares all dispatch intervals during the AEMO Intervention Event to be intervention price dispatch intervals.
The direction is expected to affect dispatch quantities for intervention pricing purposes from the 0135 hrs dispatch interval on 03/11/2019.
Manager NEM Real Time Operations
AEMO Intervention Event - Intervention price dispatch intervals - 02/11/2019
Refer AEMO Electricity Market Notice no. 70889
An AEMO Intervention Event occurred when AEMO issued a direction to maintain the power system in a secure operating state.
The AEMO Intervention Event commenced in the 1405 hrs dispatch interval and is forecast to apply until 1700 hrs 03/11/2019.
AEMO declares all dispatch intervals during the AEMO Intervention Event to be intervention price dispatch intervals.
The direction is expected to affect dispatch quantities for intervention pricing purposes from the 0135 hrs dispatch interval on 03/11/2019.
Manager NEM Real Time Operations
70889MARKET INTERVENTION02/11/2019 02:06:13 PM
Direction - SA region 02/11/2019
AEMO ELECTRICITY MARKET NOTICE.
Direction - SA region 02/11/2019
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region.
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.
For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).
Manager NEM Real Time Operations
Direction - SA region 02/11/2019
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region.
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.
For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).
Manager NEM Real Time Operations
70886MARKET INTERVENTION02/11/2019 12:35:27 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 expected to be synchronised in SA from 0830 hrs 03/11/2019 to 1630 hrs 03/11/2019 in Pre-dispatch published at 1230 hrs 02/11/2019 are inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO currently estimates that, in the absence of sufficient market response by 1400 hrs 02/11/2019, 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
Possible intervention to manage power system security in South Australia (SA) Region
The synchronous generating units expected to be synchronised in SA from 0830 hrs 03/11/2019 to 1630 hrs 03/11/2019 in Pre-dispatch published at 1230 hrs 02/11/2019 are inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO currently estimates that, in the absence of sufficient market response by 1400 hrs 02/11/2019, 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
70885RECLASSIFY CONTINGENCY02/11/2019 12:09:50 PM
Cancellation of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Cancellation time: 02/11/2019 12:09
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 70884
Auto-generated on behalf of Manager NEM Real Time Operations
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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Cancellation time: 02/11/2019 12:09
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 70884
Auto-generated on behalf of Manager NEM Real Time Operations
70884RECLASSIFY CONTINGENCY02/11/2019 11:08:27 AM
Reclassification of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 02/11/2019 11:08 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 02/11/2019 11:08 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations