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Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 08/12/2024
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_BRIS_5667C22F from 1600 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
Cancellation - Forecast Minimum System Load 1 (MSL1) condition in the VIC Region on 08/12/2024
Cancellation - Forecast MSL1 - VIC Region at 1230 hrs 08/12/2024.
Refer to Market Notice 121617 for Forecast MSL1.
Manager NEM Real Time Operations
Forecast Minimum System Load MSL1 condition in the VIC Region on 08/12/2024
Forecast Minimum System Load MSL1 condition in the VIC Region on 08/12/2024
Update to Market Notice 121508 - AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC on 08/12/2024.
Minimum regional demand is forecast to be 1299 MW at 1300 hrs, and the advisory threshold is:
o MSL1 - 1560 MW
o MSL2 - 1060 MW
o MSL3 - 560 MW
The regional demand is forecast to be below the MSL1 threshold for the following period[s]:
From 1130 hrs 08/12/2024 to 1400 hrs 08/12/2024.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Glenn Innes to Tenterfield 96R 132kV line- NSW region - 08/12/2024
Inter-regional transfer limit variation -Glenn Innes to Tenterfield 96R 132kV line - NSW region - 08/12/2024
At 0333 hrs 08/12/2024 there was an unplanned outage of Glenn Innes to Tenterfield 96R 132kV line.
The following constraint set(s) invoked at 0345 hrs 08/12/2024
N-96L_96R_CB4102
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Forecast Minimum System Load (MSL1) condition in the VIC region on 08/12/2024
AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the VIC region on 08/12/2024.
Minimum System Load (MSL) conditions are forecast when regional demand is less than the relevant MSL threshold. The advisory MSL thresholds are:
o MSL1 - 1590 MW
o MSL2 - 1090 MW
o MSL3 - 590 MW
The regional demand is forecast to be below the MSL1 threshold for the following period:
1. From 1200 hrs 08/12/2024 to 1330 hrs 08/12/2024. Minimum regional demand is forecast to be 1496 MW at 1300 hrs.
Forecast regional demand (DEMAND50) is published in Short Term and Pre-Dispatch PASA region solution reports available on Market Data NEMWEB: https://aemo.com.au/en/energy-systems/electricity/national-electricity-market-nem/data-nem/market-data-nemweb .
AEMO Operations
Update to system strength requirements in North Queensland
Refer to market notice 106175
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of Clarke Creek wind farm in Far North Queensland, the system normal equations have been revised.
A revision to the constraint equations will be implemented at 1100 hrs on Monday 9th December 2024.
The new combinations have now published in a limits advice document on AEMO's website. For more information refer to the new limits advice: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
This advice contains all the combinations for Queensland for system normal cases. Additional information has been included in the limit advice to clarify the requirement to disconnect all inverters/turbines under certain system conditions.
The constraint equation in the Q-NIL set of the form below will be modified:
-Q_NIL_STRGTH_KBWF
-Q_NIL_STRGTH_MEWF
Two new equations have been added:
-Q_NIL_STRGTH_CKWF
-Q_NIL_STRGTH_CKWF_I
AEMO Operations
PDPASA - Cancellation of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 3/12/2024
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice121410 is cancelled at1055 hrs 3/12/2024.
Manager NEM Real Time Operations
PDPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 3/12/2024
The Forecast LOR2 condition in the NSW region advised in AEMO Electricity Market Notice No. 121407 has been updated at 1015 hrs to the following:
[1.] From 1330 hrs 03/12/2024 to 1500 hrs 03/12/2024.
The forecast capacity reserve requirement is 730 MW.
The minimum capacity reserve available is 461 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
PDPASA - Forecast Lack Of Reserve Level 2 (LOR2) in the NSW Region on 03/12/2024
AEMO declares a Forecast LOR2 condition under clause 4.8.4(b) of the National Electricity Rules for the NSW region for the following Periods:
[1.] From 1330 hrs 03/12/2024 to 1400 hrs 03/12/2024.
The forecast capacity reserve requirement is 771 MW.
The minimum capacity reserve available is 741 MW.
[2.] From 1430 hrs 03/12/2024 to 1500 hrs 03/12/2024.
The forecast capacity reserve requirement is 809 MW.
The minimum capacity reserve available is 636 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time at which it would need to intervene through an AEMO intervention event.
Manager NEM Real Time Operations