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Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
AEMO has been notified that the controls to vary Directlink output are unavailable until further notice.
Constraint set I-CTRL_ISSUE_TE invoked from 0920 hrs.
The constraint set contains equations with the following interconnector on the LHS:
N-Q-MNSP1
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Directlink - NSW Region
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No 1 Leg of Directlink .
The following constraint set was invoked at 0845 hrs 03/01/2024
N-X_MBTE_2
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
NEM Local Temperature Alerts for VIC from 02 Jan 2024 to 06 Jan 2024
AEMO's weather service provider has issued forecast temperatures equal to or greater than the NEM Local Temperature Alert Levels for listed weather stations below.
VIC
Mildura Ap (39+ Deg C): 2nd Jan
The NEM Local Temperature Alert Levels are:
Launceston Ti Tree Bend: 33 Deg C, Dalby Airport: 37 Deg C, for all other selected weather stations: 39 Deg C.
AEMO requests Market Participants to:
1. review the weather forecast in the local area where their generating units / MNSP converter stations are located and,
2. if required, update the available capacity in their dispatch offers or availability submissions consistent with the forecast temperatures.
Further information is available at:
https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/nem-forecasting-and-planning/forecasting-and-reliability/projected-assessment-of-system-adequacy/nem-local-temperature-alerts
AEMO Operations Planning
Update - Lightning vulnerable equipment in QLD region
Update - Lightning vulnerable equipment in QLD region
Special Reclassification of Transmission Equipment during lightning
Refer to AEMO Electricity Market Notice 112581 and 112884.
At 1424 hrs 21/12/2023, the Middle Ridge 275 kV circuit breakers 5432 and 5422 tripped. This offloaded the H14 Middle Ridge No.2 and No. 3 275/110 kV transformers
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers to be vulnerable due to lightning.
Manager NEM Real Time Operations
Cancellation of Minimum System Load 1 (MSL1) in the VIC Region on 31/12/2023
Cancellation - MSL1 - VIC Region
Refer Market Notice 112936
The MSL1 condition for 31/12/2023 is cancelled at 1600 hrs 31/12/2023
Manager NEM Real Time Operations
NON-CONFORMANCE Region VIC1 Sunday, 31 December 2023
NON-CONFORMANCE VIC1 Region Sunday, 31 December 2023
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: GANNSF1
Duration: 31/12/2023 10:25 to 31/12/2023 10:45
Amount: 25 MW
Constraint: NC-V_GANNSF1
Auto-generated on behalf of Manager NEM Real Time Operations
Minimum System Load 1 (MSL1) in the VIC Region on 31/12/2023
AEMO has detected that there is an elevated risk of insufficient demand to maintain a secure operating state in the Victorian region from 1100 hrs 31/12/2023 to 1400 hrs 31/12/2023.
Minimum scheduled demand is forecast to be 1300 MW at 1300 hrs and the secure threshold for the forecast operating conditions is 2,000 MW.
AEMO is seeking a market response.
An insufficient market response may require AEMO to take action or intervene to maintain power system security in Victoria. This may result in action such as the direction of scheduled generation, curtailment of non-scheduled generation, and/or a direction to increase operational demand.
Manager NEM Real Time Operations
NON-CONFORMANCE Region NSW1 Saturday, 30 December 2023
NON-CONFORMANCE NSW1 Region Saturday, 30 December 2023
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: NEWENSF2
Duration: 30/12/2023 12:50 to 30/12/2023 13:05
Amount: 163 MW
Constraint: NC-N_NEWENSF2
Auto-generated on behalf of Manager NEM Real Time Operations
[EventId:202312291810_confirmed] Prices for interval 29-Dec-2023 18:10 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1835 hrs on 29 December 2023
PRICES ARE NOW CONFIRMED for trading interval 29-Dec-2023 18:10.
In accordance with Market Notice 112894 AEMO has reviewed this trading interval and determined that:
- Manifestly Incorrect Inputs did not apply
Prices remain unchanged.
This is an AEMO autogenerated Market Notice.