Market Notices

60019INTER-REGIONAL TRANSFER24/11/2017 05:47:53 PM

Management of South Australia Power System Security - Severe Weather Warning - 24/11/2017

AEMO ELECTRICITY MARKET NOTICE

Management of South Australia Power System Security - Severe Weather Warning - 24/11/2017

AEMO has determined that the severe weather warning issued by the BOM presents an added risk to the power system in South Australia.

To manage power system security, AEMO has applied a network constraint to limit the flow on the VIC-SA interconnector in the Victoria to South Australia direction.

The following constraint set was invoked at 1745 hrs and will remain in place until further notice.

I-VS_250

The constraint set contains equations with the following interconnectors on the LHS.

V-SA

Manager NEM Real Time Operations
60018RECLASSIFY CONTINGENCY24/11/2017 05:30:34 PM

Cancellation of a Non-Credible Contingency Event: Chapel Street - Liapootah No. 1 and No. 2 220kV lines in TAS 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: TAS

Lines: Chapel Street - Liapootah No. 1 and No. 2 220kV lines

Cancellation time: 1730 hrs
Constraint set(s) revoked: T-CSLI_N-2

Refer AEMO Electricity Market Notice 60014

Manager NEM Real Time Operations
60017RECLASSIFY CONTINGENCY24/11/2017 05:19:43 PM

Reclassification of a Non-Credible Contingency Event: Eildon - Mt Beauty No. 1 and No. 2 220kV lines in VIC 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: VIC

Lines: Eildon - Mt Beauty No. 1 and No. 2 220kV lines

Duration: 1715 hrs until further notice
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations
60016RECLASSIFY CONTINGENCY24/11/2017 05:18:04 PM

Reclassification of a Non-Credible Contingency Event: Dederang - Glenrowan No. 1 220 kV line and Dederang - Glenrowan No. 3 220 kV line in VIC 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: VIC

Lines: Dederang - Dederang - Glenrowan No. 1 220 kV line and Dederang - Glenrowan No. 3 220 kV line.

Duration: 1715 hrs until further notice

Constraint set(s) invoked: V-DDGN_N-2

Manager NEM Real Time Operations
60015MARKET SYSTEMS24/11/2017 04:08:11 PM

CHG0046031 - Power of Choice Implementation - DEC 2017

Change Number: CHG0046031

Notification issued to: Market Notice

Notification Type: Initial

Change Type: Normal

Service/ Component: MSATS - Business to Business data exchange

Change Title: POC IMPLEMENTATION - DEC 2017

Change Start Date & Time: 01/12/2017 12:30:00 AEST

Change End Date & Time: 03/12/2017 23:59:00 AEST

Outage Start Date & Time: 01/12/2017 18:00:00 AEST

Outage End Date & Time: 02/12/2017 18:00:00 AEST

Change Description:
There will be a MSATS Production outage to allow Emergency maintenance work on the active site in NSW.

Environment: Production

Participant Impact and Requirements:
Access to all parts of the Electricity MSATS system may be interrupted during the outage period. Access should be attempted outside these times.

Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
60014RECLASSIFY CONTINGENCY24/11/2017 04:00:05 PM

Reclassification of a Non-Credible Contingency Event: Chapel Street - Liapootah No. 1 and No. 2 220kV lines in TAS 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: TAS

Lines: Chapel Street - Liapootah No. 1 and No. 2 220kV lines

Duration: 1600 until further notice
Constraint set(s) invoked: T-CSLI_N-2

Manager NEM Real Time Operations
60013RECLASSIFY CONTINGENCY24/11/2017 01:24:33 PM

Reclassification of a Non-Credible Contingency Event: Farrell - Sheffield No. 1 and No. 2 220kV lines in TAS 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: TAS

Lines: Farrell - Sheffield No. 1 and No. 2 220kV lines

Duration: 1305 hrs until further notice
Constraint set(s) invoked: T-FASH_N-2_HM_C_2
T-NIL_WCP_CLOSE

Manager NEM Real Time Operations
60012RECLASSIFY CONTINGENCY23/11/2017 11:50:53 PM

Cancellation of a Non-Credible Contingency Event: Eildon - Mt Beauty No. 1 and No. 2 220kV lines in VIC 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: VIC

Lines: Eildon - Mt Beauty No. 1 and No. 2 220kV lines

Cancellation time: 23/11/2017 23:45
Constraint set(s) revoked: Nil

Refer AEMO Electricity Market Notice 60003

Manager NEM Real Time Operations
60011PRICES UNCHANGED23/11/2017 11:47:33 PM

[EventId:201711232350_confirmed] Prices for interval 23-Nov-2017 23:50 are now confirmed

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 2347 hrs on 23 November 2017

PRICES ARE NOW CONFIRMED for dispatch interval 23-Nov-2017 23:50.

In accordance with Market Notice 60009 AEMO has reviewed this dispatch interval and determined that:
- Manifestly Incorrect Inputs did not apply

Prices remain unchanged.


This is an AEMO autogenerated Market Notice.
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