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STPASA - Forecast Lack Of Reserve Level 1 (LOR1) in the SA Region beginning on 07/09/2021
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the SA region for the following periods:
[1.] From 0700 hrs 07/09/2021 to 0800 hrs 07/09/2021.
The forecast capacity reserve requirement is 470 MW.
The minimum capacity reserve available is 439 MW.
[2.] From 1800 hrs 07/09/2021 to 1900 hrs 07/09/2021.
The forecast capacity reserve requirement is 470 MW.
The minimum capacity reserve available is 305 MW.
[3.] From 2000 hrs 07/09/2021 to 2300 hrs 07/09/2021.
The forecast capacity reserve requirement is 470 MW.
The minimum capacity reserve available is 271 MW.
[4.] From 2330 hrs 07/09/2021 to 0030 hrs 08/09/2021.
The forecast capacity reserve requirement is 470 MW.
The minimum capacity reserve available is 438 MW.
AEMO Operations
Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 30/08/2021
Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 30/08/2021
Refer Market Notice 90028
The AEMO Intervention Event and all associated directions are cancelled from 1630 hrs 31/08/2021
Manager NEM Real Time Operations
STPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the SA Region on 07/09/2021
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 07/09/2021 to 2000 hrs 07/09/2021.
The forecast capacity reserve requirement is 250 MW.
The minimum capacity reserve available is 245 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.
AEMO Operations
Update to system normal constraint equation in NSW for voltage collapse at Balranald
TransGrid and AEMO completed review of the X5 voltage collapse limit in south west NSW on 30/08/2021. Based on this review, the limit on pre-contingent flow on Balranald to Darlington Point (X5) 220 kV line is increased by 30MW.
The following constraint equation updated today 31/08/2021 at 07:00 .
N^^N_NIL_3
Mahsa Ahmadi
AEMO Operations
Non-credible contingency event - NSW Region - 31/08/2021
Non-credible contingency event - NSW Region - 31/08/2021
At 1140 hrs the Eraring main 500 kV bus tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
NON-CONFORMANCE Region QLD1 Tuesday, 31 August 2021
NON-CONFORMANCE QLD1 Region Tuesday, 31 August 2021
AEMO declared a schedule generating unit non-conforming
Unit: TNPS1
Duration: 31/08/2021 12:40 to 31/08/2021 12:45
Amount: -22 MW
Constraint: NC-Q_TNPS1
Auto-generated on behalf of Manager NEM Real Time Operations
RESERVE NOTICE MT PASA PUBLICATION 31 August 2021
MTPASA run 440 incorporates updated 2021 ESOO input assumptions.
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 89934 published on 24 August 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
[EventId:202108310935_confirmed] Prices for interval 31-Aug-2021 09:35 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1000 hrs on 31 August 2021
PRICES ARE NOW CONFIRMED for dispatch interval 31-Aug-2021 09:35.
In accordance with Market Notice 90059 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.
[EventId:202108311000_confirmed] Prices for interval 31-Aug-2021 10:00 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1000 hrs on 31 August 2021
PRICES ARE NOW CONFIRMED for dispatch interval 31-Aug-2021 10:00.
In accordance with Market Notice 90068 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.