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        • 63502 17 Jul 2018 17:55 NON-CONFORMANCE
        • NON-CONFORMANCE Region NSW1 Tuesday, 17 July 2018

          AEMO ELECTRICITY MARKET NOTICE

          NON-CONFORMANCE NSW1 Region Tuesday, 17 July 2018

          AEMO declared a schedule generating unit non-conforming

          Unit: VP6
          Duration: 17/07/2018 17:45 to 17/07/2018 17:55
          Amount: -17 MW
          Constraint: NC-N_VP6

          Auto-generated on behalf of Manager NEM Real Time Operations

        • 63501 17 Jul 2018 17:39 RECLASSIFY CONTINGENCY
        • Cancellation of a Non-Credible Contingency Event: Norwood - Scottsdale - Derby line and Norwood - Scottsdale line in TAS1 due to Lightning.

          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: Norwood - Scottsdale - Derby and Norwood - Scottsdale

          Cancellation time: 17/07/2018 17:39

          Constraint set(s) revoked:
          NONE

          Refer AEMO Electricity Market Notice 63498

          Auto-generated on behalf of Manager NEM Real Time Operations

        • 63499 17 Jul 2018 17:30 RECLASSIFY CONTINGENCY
        • Cancellation of a Non-Credible Contingency Event: Brinkworth-Davenport, Brinkworth-Templers West and Para-Templers West 275kV lines in SA due to severe weather warning .

          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 activity 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: 17/07/2018 17:25 hrs
          Constraint set(s) revoked: Nil

          Refer AEMO Electricity Market Notice 63488

          Manager NEM Real Time Operations

        • 63500 17 Jul 2018 17:29 RECLASSIFY CONTINGENCY
        • Cancellation of a Non-Credible Contingency Event: Para-Templers West and Magill-Torrens Island A 275kV lines in SA due to severe weather warning.

          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 activity 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: 17/07/2018 17:25
          Constraint set(s) revoked: Nil

          Refer AEMO Electricity Market Notice 63487

          Manager NEM Real Time Operations

        • 63498 17 Jul 2018 16:35 RECLASSIFY CONTINGENCY
        • Reclassification of a Non-Credible Contingency Event: Norwood - Scottsdale - Derby line and Norwood - Scottsdale line in TAS1 due to Lightning.

          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: Norwood - Scottsdale - Derby and Norwood - Scottsdale

          Duration: 17/07/2018 16:35 until further notice

          Constraint set(s) invoked:
          NONE

          Auto-generated on behalf of Manager NEM Real Time Operations

        • 63497 17 Jul 2018 16:28 MARKET INTERVENTION
        • AEMO Intervention Event - Intervention price dispatch intervals - 17/07/2018

          AEMO ELECTRICITY MARKET NOTICE.

          Refer AEMO Electricity Market Notice no. 63496

          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 1635 hrs dispatch interval and is forecast to apply until 1500 hrs 18/07/2018.

          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 0105 hrs dispatch interval on 18/07/2018.


          Manager NEM Real Time Operations

        • 63496 17 Jul 2018 16:27 MARKET INTERVENTION
        • Direction - South Australia region 17/07/2018

          AEMO ELECTRICITY MARKET NOTICE.

          In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the SA region.

          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.

          For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a).

          Manager NEM Real Time Operations

        • 63494 17 Jul 2018 15:05 NON-CONFORMANCE
        • NON-CONFORMANCE Region QLD1 Tuesday, 17 July 2018

          AEMO ELECTRICITY MARKET NOTICE

          NON-CONFORMANCE QLD1 Region Tuesday, 17 July 2018

          AEMO declared a schedule generating unit non-conforming

          Unit: DDPS1
          Duration: 17/07/2018 15:00 to 17/07/2018 15:05
          Amount: -20 MW
          Constraint: NC-Q_DDPS1

          Auto-generated on behalf of Manager NEM Real Time Operations

        • 63493 17 Jul 2018 14:36 GENERAL NOTICE
        • Possible intervention to manage power system security in South Australia (SA) Region 17/07/2018

          AEMO ELECTRICITY MARKET NOTICE

          The synchronous generating units expected to be synchronised in SA from 0100 hrs 18/07/2018 to 1500 hrs 18/07/2018 in Pre-dispatch published at 1430 hrs 17/07/2018 are inadequate to maintain sufficient system strength in SA and hence a secure operating state.

          AEMO currently estimates that, in the absence of sufficient market response by 1630 hrs 17/07/2018, AEMO may need to intervene by issuing a direction requiring one or more SA synchronous generating unit(s) to operate or remain synchronised from 0100 hrs 18/07/2018 to 1500 hrs 18/07/2018, to maintain power system security in SA.

          Manager NEM Real Time Operations