Market Notices

80407RESERVE NOTICE28/11/2020 12:38:29 PM

STPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the Qld Region on 02/12/2020

AEMO ELECTRICITY MARKET NOTICE

AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the Qld region for the following period:

From 1530 hrs to 1600 hrs 02/12/2020.
The forecast capacity reserve requirement is 570 MW.
The minimum capacity reserve available is 557 MW.

AEMO is seeking a market response.

AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.

Manager NEM Real Time Operations
AEMO Operations
     
80406RECLASSIFY CONTINGENCY28/11/2020 12:21:30 PM

Reclassification of a Non-Credible Contingency Event: Dederang - Glenrowan No.1 & No.3 220 kV Lines line and Numurkah Solar Farm 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 & No.3 220 kV Lines and Numurkah Solar Farm

Duration: 28/11/2020 12:21 until further notice

Constraint set(s) invoked:
V-NIL_DDGN_NSF_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
     
80405RESERVE NOTICE28/11/2020 12:20:06 PM

PDPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region - 28/11/2020

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR1 condition in the NSW region advised in AEMO Electricity Market Notice No. 80399 has been updated at 1210 hrs to the following:
From 1630 hrs to 1830 hrs 28/11/2020.
The contingency forecast capacity reserve requirementd is 1340 MW.
The minimum capacity reserve available is 1082 MW.

Manager NEM Real Time Operations
     
80404RECLASSIFY CONTINGENCY28/11/2020 10:39:50 AM

Cancellation of a Non-Credible Contingency Event: Farrell-Sheffield No.1 220 kV line and Farrell-Sheffield No.2 220 kV line in TAS1 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: TAS1

Lines: Farrell-Sheffield No.1 220 kV and Farrell-Sheffield No.2 220 kV

Cancellation time: 28/11/2020 10:39

Constraint set(s) revoked:
F-WESTCOAST_REG_0 Constraint set contains the following interconnector(s) on the left hand side:
NONE
T-FASH_N-2_CP4_S4 Constraint set contains the following interconnector(s) on the left hand side:
NONE


Refer AEMO Electricity Market Notice 80401

Auto-generated on behalf of Manager NEM Real Time Operations
     
80403RECLASSIFY CONTINGENCY28/11/2020 10:39:50 AM

Cancellation of a Non-Credible Contingency Event: Sheffield - Wesley Vale 110kV line and Sheffield - Devonport 110kV line in TAS1 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: TAS1

Lines: Sheffield - Wesley Vale 110kV and Sheffield - Devonport 110kV

Cancellation time: 28/11/2020 10:39

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 80400

Auto-generated on behalf of Manager NEM Real Time Operations
     
80402INTER-REGIONAL TRANSFER28/11/2020 09:51:10 AM

Inter-regional transfer limit variation - constraint to manage Power System Security Murraylink - 28/11/2020

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - constraint to manage Power System Security Murraylink - 28/11/2020

In order to maintain the power system in a secure operating state, AEMO has invoked constraint set I-VSML_100 from 0950 hrs until further notice.

This constraint set contains equations with the following interconnector on the LHS;

V-S-MNSP1

Manager NEM Real Time Operations
     
80401RECLASSIFY CONTINGENCY28/11/2020 09:35:25 AM

Reclassification of a Non-Credible Contingency Event: Farrell-Sheffield No.1 220 kV line and Farrell-Sheffield No.2 220 kV line in TAS1 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: TAS1

Lines: Farrell-Sheffield No.1 220 kV and Farrell-Sheffield No.2 220 kV

Duration: 28/11/2020 09:35 until further notice

Constraint set(s) invoked:
F-WESTCOAST_REG_0 Constraint set contains the following interconnector(s) on the left hand side:
NONE
T-FASH_N-2_CP4_S4 Constraint set contains the following interconnector(s) on the left hand side:
NONE


Auto-generated on behalf of Manager NEM Real Time Operations
     
80400RECLASSIFY CONTINGENCY28/11/2020 09:35:25 AM

Reclassification of a Non-Credible Contingency Event: Sheffield - Wesley Vale 110kV line and Sheffield - Devonport 110kV line in TAS1 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: TAS1

Lines: Sheffield - Wesley Vale 110kV and Sheffield - Devonport 110kV

Duration: 28/11/2020 09:35 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
     
80399RESERVE NOTICE28/11/2020 08:43:09 AM

PDPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the NSW Region - 28/11/2020

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 1700hrs to 1800 hrs 28/11/2020.
The forecast capacity reserve requirement is 1340 MW.
The minimum capacity reserve available is 1215 MW.

Manager NEM Real Time Operations
     
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