Market Notices

AEMO ELECTRICITY MARKET NOTICE

Update - Possible intervention to manage power system security in SA region

Refer AEMO Electricity Market Notice 113695

The synchronous generating units currently expected to be synchronised in SA from 0900 hrs 25/01/2024 will be inadequate to maintain a secure operating state in SA .

AEMO estimates that, in the absence of sufficient market response by 1630 hrs 24/01/2024, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Possible intervention to manage power system security in SA Region

The synchronous generating units currently expected to be synchronised in SA from 0000 hrs 26/01/2024 will be inadequate to maintain a secure operating state in SA.
AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised to maintain power system security in SA.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - QLD region - 23/01/2024

Refer AEMO Electricity Market Notice 113659

At 1122 hrs the H35 Strathmore No2 275 kV bus was returned to service.

The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.

Nebo - Strathmore 878 275 kV line to remain out of service.

See Network Outage Scheduler (NOS) for further details.

AEMO will not reclassify this event as a credible contingency event.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - QLD region - 23/01/2024

At 0957 hrs the Strathmore No 2 275 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.
The following constraint set(s) invoked
Q-NESTM
Q-X_NQ_275_FDR+BUS

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Hazelwood - South Morang No2 500 kV Line - VIC region - 23/01/2024

At 0318 hrs 23/01/2024 there was an unplanned outage of Hazelwood - South Morang No2 500 kV Line.

The following constraint set(s) invoked at 0325 hrs 23/01/2024
V-HWSM

This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1,V-S-MNSP1,V-SA,VIC1-NSW1

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 19/01/2024

Refer Market Notice 113483

The AEMO Intervention Event and all associated directions are cancelled from 0400 hrs 23/01/2024

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

The Actual LOR 1 condition in the QLD region advised in AEMO Electricity Market Notice No. 113635 is cancelled at 1930 hrs 22/01/2024

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Actual Lack Of Reserve Level 1 (LOR1) in the QLD region - 22/01/2024

An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the QLD region from 1830 hrs.
The Actual LOR1 condition is forecast in Predispatch
The capacity reserve requirement is 986 MW
The minimum capacity reserve available is 969 MW

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction QLD region 22/01/2024

Refer Market Notice 113610

The AEMO Intervention Event and all associated directions are cancelled from 1915 hrs 22/01/2024

Manager NEM Real Time Operations