Market Notices

92979GENERAL NOTICE06/12/2021 03:06:22 PM

Network Augmentation Commissioned - SA Region - 06/12/2021

AEMO ELECTRICITY MARKET NOTICE

Network Augmentation Commissioned - SA Region - 06/12/2021


The Davenport - Port Patterson North 275 kV Line has been commissioned at 0921 hrs 06/12/2021


Manager NEM Real Time Operations
     
92978RECLASSIFY CONTINGENCY06/12/2021 02:47:44 PM

Reclassification of a Non-Credible Contingency Event: Hazelwood - Rowville No.1 220kV line and Hazelwood - Rowville No.2 220kV 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: Hazelwood - Rowville No.1 220kV and Hazelwood - Rowville No.2 220kV

Duration: 06/12/2021 14:47 until further notice

Constraint set(s) invoked:
V-HWRO_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE


Auto-generated on behalf of Manager NEM Real Time Operations
     
92977RESERVE NOTICE06/12/2021 02:43:40 PM

STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region on 09/12/2021

AEMO ELECTRICITY MARKET NOTICE

AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following period:

From 1930 hrs to 2000 hrs 09/12/2021.
The forecast capacity reserve requirement is 892 MW.
The minimum capacity reserve available is 835 MW.

AEMO Operations
     
92976RESERVE NOTICE06/12/2021 02:42:55 PM

STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the TAS Region on 08/12/2021

AEMO ELECTRICITY MARKET NOTICE

AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the TAS region for the following period:

From 0700 hrs to 0800 hrs 08/12/2021.
The forecast capacity reserve requirement is 922 MW.
The minimum capacity reserve available is 890 MW.

AEMO Operations
     
92973RESERVE NOTICE07/12/2021 08:47:38 AM

RESERVE NOTICE MT PASA PUBLICATION 7 December 2021

The MTPASA result published on 7 December 2021 identifies no Low Reserve Conditions.

Please note that MTPASA informs the market of potential reliability issues to allow the market to respond in the first instance, potentially avoiding the need for any market intervention or direction from AEMO.

For further information, please refer to:
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Data/Market-Management-System-MMS/Projected-Assessment-of-System-Adequacy

This notice supersedes Market Notice 92821 published on 30 November 2021.

Background
As part of a broader process of implementing the reliability standard, AEMO runs the Medium Term Projected Assessment of System Adequacy (MTPASA) process weekly to forecast expected unserved energy levels over a two year period. If the expected annual unserved energy exceeds the maximum level specified by the Reliability Standard, a Low Reserve Condition is identified.

For more information about how AEMO implements the reliability standard, please view the Reliability Standard Implementation Guidelines (RSIG) available on AEMO's website at
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Planning-and-forecasting/Reliability-Standard-Implementation-Guidelines

Forecasting
AEMO
     
92972RECLASSIFY CONTINGENCY06/12/2021 12:37:29 PM

Update - Non-credible contingency event - TAS region - 02/12/2021

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - TAS region - 02/12/2021

Refer AEMO ELECTRICITY MARKET NOTICE 92891

At 1559 hrs 02/12/2021 the Liapoota - Chapel St 2 220 kV line tripped/auto reclosed, and the Waddamana T1 110/22 kV transformer tripped.

At 1121 hrs 06/12/2021 the Waddamana T1 110/22 kV was returned to service.

The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.

AEMO will not reclassify this event as a credible contingency event.

Manager NEM Real Time Operations
     
92969RECLASSIFY CONTINGENCY05/12/2021 09:02:00 PM

Cancellation of a Non-Credible Contingency Event: Collinsville Nth-Clare Sth Tee King Creek 7128 132kV line and Strathmore-Clare South 7208 132kV 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: Collinsville Nth-Clare Sth Tee King Creek 7128 132kV and Strathmore-Clare South 7208 132kV

Cancellation time: 05/12/2021 21:01

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 92968

Auto-generated on behalf of Manager NEM Real Time Operations
     
92968RECLASSIFY CONTINGENCY05/12/2021 06:57:00 PM

Reclassification of a Non-Credible Contingency Event: Collinsville Nth-Clare Sth Tee King Creek 7128 132kV line and Strathmore-Clare South 7208 132kV 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: Collinsville Nth-Clare Sth Tee King Creek 7128 132kV and Strathmore-Clare South 7208 132kV

Duration: 05/12/2021 18:56 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
     
92964INTER-REGIONAL TRANSFER05/12/2021 11:08:28 AM

Inter-Regional Transfer limit variation Greenbank SVC (QLD)

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation Greenbank SVC (QLD)

At 1057 hrs 05/12/2021 there was an unplanned outage of the Greenbank SVC in the Queensland region.

Constraint set Q-GB_VC invoked from 1105 hrs 05/12/2021 until further notice.

This constraint set contains equations with the following interconnectors on the LHS.
NSW1-QLD1
N-Q-MNSP1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
     
X
Cookies help us improve your website experience.
By using our website, you agree to our use of cookies.
Confirm