Market Notices

78142RECLASSIFY CONTINGENCY22/09/2020 10:09:20 AM

Reclassification of a Non-Credible Contingency Event: Bulli Creek - Dumaresq 8L 330KV line and Bulli Creek - Dumaresq 8M 330KV 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: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV

Duration: 22/09/2020 10:09 until further notice

Constraint set(s) invoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1


Auto-generated on behalf of Manager NEM Real Time Operations
     
78141PRICES SUBJECT TO REVIEW22/09/2020 10:05:11 AM

[EventId:202009221010_review] Prices for interval 22-Sep-2020 10:10 are subject to review

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1005 hrs on 22 September 2020

PRICES ARE SUBJECT TO REVIEW for dispatch interval 22-Sep-2020 10:10.

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.
     
78140PRICES SUBJECT TO REVIEW22/09/2020 10:00:15 AM

[EventId:202009221005_review] Prices for interval 22-Sep-2020 10:05 are subject to review

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1000 hrs on 22 September 2020

PRICES ARE SUBJECT TO REVIEW for dispatch interval 22-Sep-2020 10:05.

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.
     
78139PRICES SUBJECT TO REVIEW22/09/2020 09:55:10 AM

[EventId:202009221000_review] Prices for interval 22-Sep-2020 10:00 are subject to review

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 0955 hrs on 22 September 2020

PRICES ARE SUBJECT TO REVIEW for dispatch interval 22-Sep-2020 10:00.

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.
     
78138RESERVE NOTICE22/09/2020 12:23:47 PM

RESERVE NOTICE MT PASA PUBLICATION 22 September 2020

The MTPASA result published on 22 September 2020 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 77806 published on 15 September 2020.

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
     
78137GENERAL NOTICE22/09/2020 09:09:33 AM

Non-credible contingency event more likely to occur due to existence of abnormal conditions - SA region

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event more likely to occur due to existence of abnormal conditions - SA region

AEMO has identified that a non-credible contingency event is more likely to occur because of the existence of abnormal conditions, namely damaging winds in the South Australia region.

There is a possibility of severe weather impacting multiple transmission elements in its vicinity.

Conditions can change rapidly and potentially impacted plant may change. Further notices will only be published to advise of any reclassification, or when the abnormal conditions have ceased to impact the likelihood of a non-credible event occurring.

Constraint set I-VS_250 invoked at 0900 hrs 22/09/2020 until further notice.


Manager NEM Real Time Operations



     
78136RECLASSIFY CONTINGENCY22/09/2020 04:49:50 AM

Cancellation of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 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: NSW1

Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Cancellation time: 22/09/2020 04:49

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 78134

Auto-generated on behalf of Manager NEM Real Time Operations
     
78135RECLASSIFY CONTINGENCY22/09/2020 02:51:55 AM

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

Cancellation time: 22/09/2020 02:51

Constraint set(s) revoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1


Refer AEMO Electricity Market Notice 78132

Auto-generated on behalf of Manager NEM Real Time Operations
     
78134RECLASSIFY CONTINGENCY22/09/2020 01:48:31 AM

Reclassification of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 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: NSW1

Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Duration: 22/09/2020 01:48 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of 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