Market Notices

90663RESERVE NOTICE18/09/2021 08:28:10 AM

STPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 21/09/2021

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 90661 is cancelled at 0820 hrs 18/09/2021.

No LOR2 condition is currently forecast in the STPASA period.

AEMO Operations
90662SETTLEMENTS RESIDUE18/09/2021 08:05:30 AM

[EventId:202109180805_NRM_QLD1_NSW1_started] NEGRES CONSTRAINT NRM_QLD1_NSW1 started operating from 18 September 2021 08:05

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 0805 hrs on 18 September 2021

ACTUAL NEGATIVE SETTLEMENT RESIDUES - QLD to NSW - 18 September 2021.

Electricity Market outcomes have resulted in the accumulation of negative settlement residues that have exceeded the allowable negative residue threshold for the QLD to NSW directional interconnector.

The negative residue constraint set NRM_QLD1_NSW1 commenced operating from 0805 hrs on 18 September 2021.

This constraint set contains an equation with the following interconnectors on the LHS:
N-Q-MNSP1
NSW1-QLD1

The RHS of the constraint equation may be adjusted to manage residues.


This is an AEMO autogenerated Market Notice.
90661RESERVE NOTICE18/09/2021 07:51:45 AM

STPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 21/09/2021

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR2 condition in the SA region advised in AEMO Electricity Market Notice No. 90657 has been updated at 0730 hrs 18/09/2021 to the following:

From 1830 hrs 21/09/2021 to 2100 hrs 21/09/2021.
The forecast capacity reserve requirement is 243 MW.
The minimum capacity reserve available is 143 MW.

AEMO is seeking a market response.

AEMO estimates the latest time it would need to intervene through an AEMO intervention event is 1230 hrs on 20/09/2021


Manager NEM Real Time Operations
90660RESERVE NOTICE18/09/2021 07:50:16 AM

STPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region beginning on 21/09/2021

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR1 condition in the SA region advised in AEMO Electricity Market Notice No. 90620 has been updated at 0730 hrs 18/09/2021 to the following:

[1.] From 1800 hrs 21/09/2021 to 1830 hrs 21/09/2021.
The forecast capacity reserve requirement is 434 MW.
The minimum capacity reserve available is 341 MW.

[2.] From 2100 hrs 21/09/2021 to 2300 hrs 21/09/2021.
The forecast capacity reserve requirement is 434 MW.
The minimum capacity reserve available is 271 MW.

[3.] From 1900 hrs 22/09/2021 to 2100 hrs 22/09/2021.
The forecast capacity reserve requirement is 450 MW.
The minimum capacity reserve available is 395 MW.


Manager NEM Real Time Operations
90659RECLASSIFY CONTINGENCY18/09/2021 04:18:56 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: 18/09/2021 04:18

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 90658

Auto-generated on behalf of Manager NEM Real Time Operations
90658RECLASSIFY CONTINGENCY18/09/2021 03:16:46 AM

Reclassification 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

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 - Reece No.1 220 kV and Farrell - Reece No.2 220 kV

Duration: 18/09/2021 03:16 until further notice

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


Auto-generated on behalf of Manager NEM Real Time Operations
90657RESERVE NOTICE17/09/2021 10:42:15 PM

STPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 21/09/2021

AEMO ELECTRICITY MARKET NOTICE

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

From 1900 hrs 21/09/2021 to 2000 hrs 21/09/2021.
The forecast capacity reserve requirement is 242 MW.
The minimum capacity reserve available is 212 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
90655PRICES UNCHANGED17/09/2021 05:30:01 PM

[EventId:202109171705_confirmed] Prices for interval 17-Sep-2021 17:05 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1725 hrs on 17 September 2021

PRICES ARE NOW CONFIRMED for dispatch interval 17-Sep-2021 17:05.

In accordance with Market Notice 90643 AEMO has reviewed this dispatch interval and determined that:
- Manifestly Incorrect Inputs did not apply

Prices remain unchanged.


This is an AEMO autogenerated Market Notice.
90654PRICES UNCHANGED17/09/2021 05:29:07 PM

[EventId:202109171725_confirmed] Prices for interval 17-Sep-2021 17:25 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1725 hrs on 17 September 2021

PRICES ARE NOW CONFIRMED for dispatch interval 17-Sep-2021 17:25.

In accordance with Market Notice 90649 AEMO has reviewed this dispatch interval and determined that:
- Manifestly Incorrect Inputs did not apply

Prices remain unchanged.


This is an AEMO autogenerated Market Notice.
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