AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.

Region: TAS1

Lines: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV

Duration: 11/09/2018 20:55 until further notice

Constraint set(s) invoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1


Auto-generated on behalf of Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Update - AEMO Intervention Event - Intervention price dispatch intervals

Refer AEMO Electricity Market Notice no. 64174

The AEMO Intervention Event commenced in the 1405 hrs dispatch interval on 10/09/2018 and is now forecast to apply until 1500 hrs 12/09/2018.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Cancellation of reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.

AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any severe weather warning in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

Region: SA

Lines: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines

Cancellation time: 11/09/2018 18:35 hrs
Constraint set(s) revoked: Nil

Refer AEMO Electricity Market Notice 64176
Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Cancellation of reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.

AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any severe weather warning in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

Region: SA

Lines: Para-Templers West and Magill-Torrens Island A 275kV lines

Cancellation time: 11/09/2018 18:35 hrs
Constraint set(s) revoked: Nil

Refer AEMO Electricity Market Notice 64175
Manager NEM Real Time Operations

The MTPASA result published on 11 September 2018 identifies a Low Reserve Conditions in Victoria in 2018-19.

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 64087 published on 4 September 2018.

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
http://www.aemo.com.au/-/media/Files/Stakeholder_Consultation/Consultations/Electricity_Consultations/2016/EAAP/Reliability-Standard-Implementation-Guidelines.pdf

Forecasting
AEMO

Dear Users,

Please be aware of Incident and its status mentioned below:
MSATS - B2B FTP Degradation


Services Affected
VMware

Time of Occurrence of Incident
11/09/2018 06:02 AEST


Impact/Status/Requirements
MSATS - B2B FTP issue that commenced at 06:02 was resolved as of 08:15 AEST this morning.

References
Incident Number: INC0038546

For further details please contact the AEMO Information and Support Hub or on External 1300 236 600.

AEMO ELECTRICITY MARKET NOTICE.

Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.

AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.

Region: SA

Lines: Para-Templers West and Magill-Torrens Island A 275kV lines

Duration: 11/09/2018 05:40 until further notice

Constraint set(s) invoked: Nil

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.

AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.

Region: SA

Lines: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines

Duration: 11/09/2018 05:40 until further notice
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.

AEMO Intervention Event - Intervention price dispatch intervals - 10/09/2018

Refer AEMO Electricity Market Notice no. 64173

An AEMO Intervention Event occurred when AEMO issued a direction to maintain the power system in a secure operating state.

The AEMO Intervention Event commenced in the 1405 hrs dispatch interval and is forecast to apply until 0430 hrs 12/09/2018.

AEMO declares all dispatch intervals during the AEMO Intervention Event to be intervention price dispatch intervals.

The direction is expected to affect dispatch quantities for intervention pricing purposes from the 2305 hrs dispatch interval on 10/09/2018.


Manager NEM Real Time Operations