Market Notices

75798PRICES SUBJECT TO REVIEW24/05/2020 04:35

[EventId:202005240440_review] Prices for interval 24-May-2020 04:40 are subject to review

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 0435 hrs on 24 May 2020

PRICES ARE SUBJECT TO REVIEW for dispatch interval 24-May-2020 04:40.

AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs


This is an AEMO autogenerated Market Notice.
75797PRICES SUBJECT TO REVIEW24/05/2020 04:30

[EventId:202005240435_review] Prices for interval 24-May-2020 04:35 are subject to review

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 0430 hrs on 24 May 2020

PRICES ARE SUBJECT TO REVIEW for dispatch interval 24-May-2020 04:35.

AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs


This is an AEMO autogenerated Market Notice.
75796PRICES SUBJECT TO REVIEW24/05/2020 04:25

[EventId:202005240430_review] Prices for interval 24-May-2020 04:30 are subject to review

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 0425 hrs on 24 May 2020

PRICES ARE SUBJECT TO REVIEW for dispatch interval 24-May-2020 04:30.

AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs


This is an AEMO autogenerated Market Notice.
75795PRICES SUBJECT TO REVIEW24/05/2020 04:20

[EventId:202005240425_review] Prices for interval 24-May-2020 04:25 are subject to review

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 0420 hrs on 24 May 2020

PRICES ARE SUBJECT TO REVIEW for dispatch interval 24-May-2020 04:25.

AEMO is reviewing these prices in accordance with:
- Clause 3.9.2B of the National Electricity Rules for Manifestly Incorrect Inputs


This is an AEMO autogenerated Market Notice.
75794RECLASSIFY CONTINGENCY23/05/2020 02:35

Cancellation - Reclassification of a Non Credible Contingency Event: South East No.1 and No.2 275 kV SVCs. - SA region

AEMO ELECTRICITY MARKET NOTICE

Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event. AEMO considers the simultaneous trip of the following equipment is no longer reasonably possible. Accordingly, its classification has reverted to a non-credible contingency event.

Region: SA1

Equipment: South East SVC 1 and SVC 2

Cancellation time: 23/05/2020 14:30

Constraint set(s) revoked: NONE

Refer AEMO Electricity Market Notice 75788

Manager NEM Real Time Operations
75793MARKET INTERVENTION23/05/2020 05:59

Direction - SA region - 23/05/2020

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. 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 dispatch intervals during the event to be intervention dispatch intervals, commencing from the interval ending 1805 hrs on 23/05/2020.

Intervention pricing does not apply to this AEMO intervention event.

Manager NEM Real Time Operations
75791MARKET INTERVENTION23/05/2020 04:30

Cancellation - AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 22/05/2020

AEMO ELECTRICITY MARKET NOTICE

Refer Market Notice 75787

The AEMO Intervention Event and all associated directions are cancelled from 1630 hrs 23/05/2020.

Manager NEM Real Time Operation
75789MARKET INTERVENTION23/05/2020 01:38

Possible intervention to manage power system security in South Australia (SA) Region

AEMO ELECTRICITY MARKET NOTICE

The synchronous generating units expected to be synchronised in SA from 0130 hrs 24/05/2020 to 1530 hrs 24/05/2020 in Pre-dispatch published at 1330 hrs 23/05/2020 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 1800 hrs 23/05/2020, 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
75788RECLASSIFY CONTINGENCY23/05/2020 09:15

Reclassification of a Non Credible Contingency Event: South East No.1 and No.2 275 kV SVCs.- SA region

AEMO ELECTRICITY MARKET NOTICE

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

Region: SA1

Equipment: South East SVC 1 and SVC 2

Duration: 23/05/2020 08:50 until further notice

Constraint set(s) invoked: NONE

Manager NEM Real Time Operations
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