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67167RECLASSIFY CONTINGENCY08/02/2019 10:40:18 PM
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: 08/02/2019 22:40 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: 08/02/2019 22:40 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
67166RECLASSIFY CONTINGENCY08/02/2019 05:44:01 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: 08/02/2019 17:43
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 67157
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: 08/02/2019 17:43
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 67157
Auto-generated on behalf of Manager NEM Real Time Operations
67165RECLASSIFY CONTINGENCY08/02/2019 04:34:04 PM
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: 08/02/2019 16:33
Constraint set(s) revoked:
V-DDGN_N-2 Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1
V-SA
VIC1-NSW1
Refer AEMO Electricity Market Notice 67155
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: 08/02/2019 16:33
Constraint set(s) revoked:
V-DDGN_N-2 Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1
V-SA
VIC1-NSW1
Refer AEMO Electricity Market Notice 67155
Auto-generated on behalf of Manager NEM Real Time Operations
67164RECLASSIFY CONTINGENCY08/02/2019 04:14:01 PM
Cancellation of a Non-Credible Contingency Event: Chalumbin - Turkinje No.7165 132 kV line and Chalumbin - Turkinje No.7166 132 kV 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: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV
Cancellation time: 08/02/2019 16:13
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 67162
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: QLD1
Lines: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV
Cancellation time: 08/02/2019 16:13
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 67162
Auto-generated on behalf of Manager NEM Real Time Operations
67163GENERAL NOTICE08/02/2019 03:22:34 PM
Market reporting for forecast extreme temperature in the Queensland region on 13/02/2019
AEMO ELECTRICITY MARKET NOTICE
AEMO's weather service provider has issued forecast temperatures for Qld region that are equal to or greater than the Generation Capacity Reference Temperatures:
On 13/02/2019: Maximum forecast temperature 37 degrees C at Archerfield for the Brisbane area
AEMO requests Market Participants to:
1. review the weather forecast in the local area where their generating plants are located and,
2. if required, update the generation levels in their dispatch offers consistent with the forecast temperatures.
Details on Generation Capacity Reference Temperatures can be accessed using the following link to AEMO website:
http://www.aemo.com.au/Electricity/Planning/Related-Information/Generation-Information
Generation Capacity Reference Temperatures:
QUEENSLAND - BRISBANE AREA 37 degrees C.
NEW SOUTH WALES - SYDNEY AREA 42 degrees C.
VICTORIA - MELBOURNE AREA 41 degrees C.
SOUTH AUSTRALIA - ADELAIDE AREA 43 degrees C.
TASMANIA - GEORGE TOWN 30 degrees C.
BASSLINK- Latrobe Valley Airport 43 degrees C AND GEORGE TOWN 33 degrees C.
Danushka Sooriyadasa
AEMO Operations
AEMO's weather service provider has issued forecast temperatures for Qld region that are equal to or greater than the Generation Capacity Reference Temperatures:
On 13/02/2019: Maximum forecast temperature 37 degrees C at Archerfield for the Brisbane area
AEMO requests Market Participants to:
1. review the weather forecast in the local area where their generating plants are located and,
2. if required, update the generation levels in their dispatch offers consistent with the forecast temperatures.
Details on Generation Capacity Reference Temperatures can be accessed using the following link to AEMO website:
http://www.aemo.com.au/Electricity/Planning/Related-Information/Generation-Information
Generation Capacity Reference Temperatures:
QUEENSLAND - BRISBANE AREA 37 degrees C.
NEW SOUTH WALES - SYDNEY AREA 42 degrees C.
VICTORIA - MELBOURNE AREA 41 degrees C.
SOUTH AUSTRALIA - ADELAIDE AREA 43 degrees C.
TASMANIA - GEORGE TOWN 30 degrees C.
BASSLINK- Latrobe Valley Airport 43 degrees C AND GEORGE TOWN 33 degrees C.
Danushka Sooriyadasa
AEMO Operations
67162RECLASSIFY CONTINGENCY08/02/2019 03:09:11 PM
Reclassification of a Non-Credible Contingency Event: Chalumbin - Turkinje No.7165 132 kV line and Chalumbin - Turkinje No.7166 132 kV 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: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV
Duration: 08/02/2019 15:09 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: QLD1
Lines: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV
Duration: 08/02/2019 15:09 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
67161MARKET INTERVENTION08/02/2019 04:01:54 PM
AEMO Intervention Event - Intervention price dispatch intervals - 8/02/2019
AEMO ELECTRICITY MARKET NOTICE
Refer AEMO Electricity Market Notice 67160
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 1605 hrs dispatch interval and is forecast to apply until 1730 hrs 9/02/2019.
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 0035 hrs dispatch interval on 9/02/2019.
Manager NEM Real Time Operations
Refer AEMO Electricity Market Notice 67160
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 1605 hrs dispatch interval and is forecast to apply until 1730 hrs 9/02/2019.
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 0035 hrs dispatch interval on 9/02/2019.
Manager NEM Real Time Operations
67160MARKET INTERVENTION08/02/2019 04:00:54 PM
Direction - South Australia region 8/02/2019
AEMO ELECTRICITY MARKET NOTICE.
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the South Australia 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
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the South Australia 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
67158MARKET INTERVENTION08/02/2019 02:12:23 PM
Possible intervention to manage power system security in South Australia (SA) Region
AEMO ELECTRICITY MARKET NOTICE
The synchronous generating units expected to be synchronised in SA from 0030 hrs 9/02/19 to 1730 hrs 9/02/19 in Pre-dispatch published at 1300 hrs 8/02/19 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 1600 hrs 8/02/19, 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
The synchronous generating units expected to be synchronised in SA from 0030 hrs 9/02/19 to 1730 hrs 9/02/19 in Pre-dispatch published at 1300 hrs 8/02/19 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 1600 hrs 8/02/19, 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