Market Notices

82363INTER-REGIONAL TRANSFER25/01/2021 12:09:08 PM

Update - Inter-regional transfer limit variation - SA Region - 25/01/2021

AEMO ELECTRICITY MARKET NOTICE

Update - Inter-regional transfer limit variation - SA Region - 25/01/2021

Refer AEMO Electricity Market Notice 82358 and 82348

To manage Power System Security in the SA Region:

Constraint set I-SV_100 revoked at 1200 hrs
Constraint set S-CGTB1 extended until 0400 hrs 27/01/2021

These constraints have the following interconnector on the LHS

VIC1-SA1

Refer to AEMO Network Outage Scheduler for further details.

Manager NEM Real Time Operations
     
82361RECLASSIFY CONTINGENCY25/01/2021 11:48:30 AM

Reclassification of a Non-Credible Contingency Event: Farrell - Reece No.1 220 kV line and Farrell - Reece No.2 220 kV 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: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV

Duration: 25/01/2021 11:48 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
     
82360MARKET INTERVENTION25/01/2021 12:08:19 PM

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

AEMO ELECTRICITY MARKET NOTICE

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

The combination of synchronous generating units currently expected to be synchronised in SA from 0100 hrs 26/01/2021 will not provide sufficient system strength in SA to maintain the power system in a secure operating state.

In the absence of sufficient market response 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 26/01/2021 to maintain power system security in SA. Refer to current Transfer Limit Advice for SA system strength on AEMOs website.

If necessary, AEMO will estimate and publish the latest time at which AEMO would need to intervene after the 1230 hrs predispatch run on the 25/01/2021.

Manager NEM Real Time Operations
     
82359GENERAL NOTICE25/01/2021 10:34:43 AM

NEM Local Temperature Alerts for TAS, VIC from 25 Jan 2021 to 29 Jan 2021

AEMO ELECTRICITY MARKET NOTICE

AEMO's weather service provider has issued forecast temperatures equal to or greater than the NEM Local Temperature Alert Levels for listed weather stations below.

TAS
Launceston Ti Tree Bend (33+ Deg C): 25th Jan

VIC
Latrobe Valley Ap (39+ Deg C): 25th Jan
Melbourne Olympic Park (39+ Deg C): 25th Jan
Mildura Ap (39+ Deg C): 25th Jan

The NEM Local Temperature Alert Levels are:

Launceston Ti Tree Bend: 33 Deg C, Dalby Airport: 37 Deg C, for all other selected weather stations: 39 Deg C.

AEMO requests Market Participants to:

1. review the weather forecast in the local area where their generating units / MNSP converter stations are located and,

2. if required, update the available capacity in their dispatch offers or availability submissions consistent with the forecast temperatures.

Further information is available at:

https://aemo.com.au/energy-systems/electricity/national-electricity-market-nem/nem-forecasting-and-planning/forecasting-and-reliability/projected-assessment-of-system-adequacy/nem-local-temperature-alerts

AEMO Operations Planning
     
82358INTER-REGIONAL TRANSFER25/01/2021 09:20:37 AM

Update - Inter-regional transfer limit variation - SA Region - 25/01/2021

AEMO ELECTRICITY MARKET NOTICE

Update - Inter-regional transfer limit variation - SA Region - 25/01/2021

Refer AEMO Electricity Market Notice 82355

To manage Power System Security in the SA Region:

Constraint set CA_BRIS_4F1FE461_1 revoked at 0920 hrs

Constraint set I-SV_100 invoked from 0920 hrs until further notice

Constraint has the following interconnector on the LHS

VIC1-SA1


Manager NEM Real Time Operations
     
82357GENERAL NOTICE25/01/2021 02:38:37 AM

Cancellation - Psymetrix PhasorPoint - Unplanned Outage - 25/01/2021.

AEMO ELECTRICITY MARKET NOTICE

Refer to MN 82356

AEMO Psymetrix PhasorPoint application returned to service.

The following constraint set was invoked from 0150 hrs to 0240 hrs

I-OSC_STAB_MON

The constraint set contains the following interconnector on the left hand side.

NSW1-QLD1
V-S_MNSP1
V-SA
VIC1-NSW1

Manager NEM Real Time Operations
     
82356GENERAL NOTICE25/01/2021 01:51:23 AM

Psymetrix PhasorPoint - Unplanned Outage - 25/01/2021.

AEMO ELECTRICITY MARKET NOTICE

There is an unplanned of AEMO Psymetrix PhasorPoint application.

The following constraint set was invoked at 0150 hrs 25/01/2021

I-OSC_STAB_MON

The constraint set contains the following interconnector on the left hand side.

NSW1-QLD1
V-S_MNSP1
V-SA
VIC1-NSW1

Manager NEM Real Time Operations
     
82355INTER-REGIONAL TRANSFER24/01/2021 09:28:12 PM

Inter-regional transfer limit variation - SA Region - 24/01/2021

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - SA Region - 24/01/2021

To manage Power System Security in the SA Region, the following constraint set has been invoked.

Constraint CA_BRIS_4F1FE461_1 invoked from 2120 hrs until further notice

Constraint has the following interconnector on the LHS

VIC1-SA1


Manager NEM Real Time Operations
     
82354RESERVE NOTICE24/01/2021 08:16:56 PM

Correction - Cancellation of Actual (LOR1) condition in the SA region - 24 Jan 2021

AEMO ELECTRICITY MARKET NOTICE

Correction - Cancellation of Actual (LOR1) condition in the SA region - 24 Jan 2021

The Actual LOR1 Condition in the SA Region advised in AEMO Electricity Market Notice No.82347 is cancelled at 2010 hrs 24 Jan 2021

Manager NEM Real Time Operations
     
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