Market Notices

The MTPASA result published on 30 April 2024 identifies Low Reserve Conditions as annual unserved energy exceeds the Reliability Standard between:
-- May 2025 - May 2026 in New South Wales.

AEMO declares low reserve conditions in accordance with clause 4.8.4 of the National Electricity Rules for the following region(s) and periods:
-- November 2025 - March 2026 in New South Wales when forecast demand exceeds supply under some circumstances.

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 AEMO intervention.

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 116268 published on 23 April 2024.

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

Forecasting
AEMO

AEMO ELECTRICITY MARKET NOTICE

NON-CONFORMANCE NSW1 Region Monday, 29 April 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: VP5
Duration: 29/04/2024 20:50 to 29/04/2024 20:55
Amount: -18 MW
Constraint: NC-N_VP5

Auto-generated on behalf of Manager NEM Real Time Operations

Change Number: CHG0088931

Notification issued to: Market Notice
Notification Type: Completed

Change Type: Normal

Service/Component: EMS NEM - Network Outage Scheduler (NOS)

Change Title: Planned System Maintenance activity.

Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.

AEMO ELECTRICITY MARKET NOTICE.

Direction - SA region 29/04/2024

In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).

The direction was necessary to maintain the power system in a secure operating state.

AEMO may issue or revoke additional directions in order to meet the current requirement, unless sufficient market response is provided. A further market notice will be issued when all directions related to this requirement have been cancelled.

The issue of the direction commences an AEMO intervention event. AEMO declares all trading intervals during the event to be intervention trading intervals, commencing from the interval ending 1605 hrs on 29/04/2024.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

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

Refer AEMO Electricity Market Notice 116368

The synchronous generating units currently expected to be synchronised in SA from 0800 hrs 30/04/2024 will be inadequate to maintain a secure operating state in SA .

AEMO estimates that, in the absence of sufficient market response by 1600 hrs 29/04/2024, 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

NON-CONFORMANCE VIC1 Region Monday, 29 April 2024

AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:

Unit: JLB01
Duration: 29/04/2024 13:00 to 29/04/2024 13:05
Amount: 35 MW
Constraint: NC-V_JLB01

Auto-generated on behalf of 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 0830 hrs 30/04/2024 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

Change Number: CHG0089027

Notification issued to: Market Notice
Notification Type: Cancelled

Change Type: Normal

Service/ Component: MDM - Meter Data Management

Change Title: Pre-Prod eMDM May Maintenance Release

Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600

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: Tungatinah-Lake Echo-Waddamana 1 110kV and Tungatinah-Waddamana 2 110kV

Cancellation time: 29/04/2024 06:29

Constraint set(s) revoked:
T-TUWA12_110_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE


Refer AEMO Electricity Market Notice 116365

Auto-generated on behalf of Manager NEM Real Time Operations