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94138MARKET INTERVENTION28/01/2022 02:47:13 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 synchronous generating units currently expected to be synchronised in SA from 0130 hrs 29/01/2022 will be inadequate to maintain a secure operating state in SA.
AEMO estimates that, in the absence of sufficient market response by 1600 hrs 28/01/2022, 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 Operation
Possible intervention to manage power system security in South Australia (SA) Region
The synchronous generating units currently expected to be synchronised in SA from 0130 hrs 29/01/2022 will be inadequate to maintain a secure operating state in SA.
AEMO estimates that, in the absence of sufficient market response by 1600 hrs 28/01/2022, 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 Operation
94137RECLASSIFY CONTINGENCY28/01/2022 01:04:50 PM
Reclassification of a Non-Credible Contingency Event: Hazelwood - Rowville No.1 220kV line and Hazelwood - Rowville No.2 220kV line in VIC1 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: VIC1
Lines: Hazelwood - Rowville No.1 220kV and Hazelwood - Rowville No.2 220kV
Duration: 28/01/2022 13:04 until further notice
Constraint set(s) invoked:
V-HWRO_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
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: VIC1
Lines: Hazelwood - Rowville No.1 220kV and Hazelwood - Rowville No.2 220kV
Duration: 28/01/2022 13:04 until further notice
Constraint set(s) invoked:
V-HWRO_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
94136RECLASSIFY CONTINGENCY28/01/2022 01:04:50 PM
Reclassification of a Non-Credible Contingency Event: Sheffield - Wesley Vale 110kV line and Sheffield - Devonport 110kV 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: Sheffield - Wesley Vale 110kV and Sheffield - Devonport 110kV
Duration: 28/01/2022 13:04 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
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: Sheffield - Wesley Vale 110kV and Sheffield - Devonport 110kV
Duration: 28/01/2022 13:04 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
94135RECALL GEN CAPACITY28/01/2022 01:06:33 PM
Cancellation of the Request for Generator Recall Information for 01/02/2022 for QLD Region
AEMO ELECTRICITY MARKET NOTICE
Refer the AEMO Electricity Market Notice No.94079.
Capacity reserves in QLD region for 01/02/2022 have increased and the LOR2 condition no longer exists for this day.
Hence AEMO withdraws the request for provding Generator Recall Information for QLD region for 01/02/2022.
Generator Recall Information for 02/02/2022 for QLD region must be submitted, refer the market notice Nos.94080 and 94133.
AEMO Operations
Refer the AEMO Electricity Market Notice No.94079.
Capacity reserves in QLD region for 01/02/2022 have increased and the LOR2 condition no longer exists for this day.
Hence AEMO withdraws the request for provding Generator Recall Information for QLD region for 01/02/2022.
Generator Recall Information for 02/02/2022 for QLD region must be submitted, refer the market notice Nos.94080 and 94133.
AEMO Operations
94134GENERAL NOTICE28/01/2022 03:57:58 PM
Cancellation - Non-credible contingency event more likely to occur due to existence of abnormal condition/s - Victoria region.
AEMO ELECTRICITY MARKET NOTICE.
Abnormal conditions advised in AEMO Electricity Market Notice 94131 have ceased to impact the likelihood of a non-credible event occurring as at 1600 hrs 28/01/2022.
Constraint set I-VS_250 revoked
Manager NEM Real Time Operations
Abnormal conditions advised in AEMO Electricity Market Notice 94131 have ceased to impact the likelihood of a non-credible event occurring as at 1600 hrs 28/01/2022.
Constraint set I-VS_250 revoked
Manager NEM Real Time Operations
94133RESERVE NOTICE28/01/2022 11:40:30 AM
STPASA - Update of the Forecast Lack Of Reserve Level 2 (LOR2) in the QLD Region on 02/02/2022
AEMO ELECTRICITY MARKET NOTICE
The Forecast LOR2 conditions in the QLD region advised in AEMO Electricity Market Notice No. 94129 have been updated at 1100 hrs 28/01/2022 to the following:
From 1730 hrs to 1900 hrs 02/02/2022.
The forecast capacity reserve requirement is 443 MW.
The minimum capacity reserve available is 301 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations
The Forecast LOR2 conditions in the QLD region advised in AEMO Electricity Market Notice No. 94129 have been updated at 1100 hrs 28/01/2022 to the following:
From 1730 hrs to 1900 hrs 02/02/2022.
The forecast capacity reserve requirement is 443 MW.
The minimum capacity reserve available is 301 MW.
AEMO is seeking a market response.
AEMO has not yet estimated the latest time it would need to intervene through an AEMO intervention event.
AEMO Operations
94132GENERAL NOTICE28/01/2022 10:31:03 AM
NEM Local Temperature Alerts for SA from 28 Jan 2022 to 1 Feb 2022
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.
SA
Port Augusta Ap (39+ Deg C): 31th 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
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.
SA
Port Augusta Ap (39+ Deg C): 31th 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
94131GENERAL NOTICE28/01/2022 09:33:49 AM
Non-credible contingency event more likely to occur due to existence of abnormal condition/s - Victoria region.
AEMO ELECTRICITY MARKET NOTICE.
AEMO has identified that a non-credible contingency event is more likely to occur because of the existence of abnormal conditions namely severe weather and damaging winds in the Victoria region.
As at the time of this notice the criteria for reclassification of any non-credible contingency event have been met and there is a possibility of severe weather impacting multiple transmission elements in its vicinity.
Conditions can change rapidly and potentially impacted plant may change. Further notices will only be published to advise of any reclassification, or when the abnormal conditions have ceased to impact the likelihood of a non-credible event occurring.
Constraint set I-VS_250 invoked at 0935 hrs 28/01/2022 until further notice.
Manager NEM Real Time Operations
AEMO has identified that a non-credible contingency event is more likely to occur because of the existence of abnormal conditions namely severe weather and damaging winds in the Victoria region.
As at the time of this notice the criteria for reclassification of any non-credible contingency event have been met and there is a possibility of severe weather impacting multiple transmission elements in its vicinity.
Conditions can change rapidly and potentially impacted plant may change. Further notices will only be published to advise of any reclassification, or when the abnormal conditions have ceased to impact the likelihood of a non-credible event occurring.
Constraint set I-VS_250 invoked at 0935 hrs 28/01/2022 until further notice.
Manager NEM Real Time Operations
94130RESERVE NOTICE28/01/2022 05:25:52 AM
STPASA - Update of the Forecast Lack Of Reserve Level 1 (LOR1) in the QLD Region beginning on 01/02/2022
AEMO ELECTRICITY MARKET NOTICE
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following periods:
[1.] From 1800 hrs 01/02/2022 to 1900 hrs 01/02/2022.
The forecast capacity reserve requirement is 878 MW.
The minimum capacity reserve available is 682 MW.
[2.] From 1600 hrs 02/02/2022 to 1700 hrs 02/02/2022.
The forecast capacity reserve requirement is 837 MW.
The minimum capacity reserve available is 489 MW.
[3.] From 1930 hrs 02/02/2022 to 2000 hrs 02/02/2022.
The forecast capacity reserve requirement is 870 MW.
The minimum capacity reserve available is 796 MW.
Manager NEM Real Time Operations
AEMO declares a Forecast LOR1 condition under clause 4.8.4(b) of the National Electricity Rules for the QLD region for the following periods:
[1.] From 1800 hrs 01/02/2022 to 1900 hrs 01/02/2022.
The forecast capacity reserve requirement is 878 MW.
The minimum capacity reserve available is 682 MW.
[2.] From 1600 hrs 02/02/2022 to 1700 hrs 02/02/2022.
The forecast capacity reserve requirement is 837 MW.
The minimum capacity reserve available is 489 MW.
[3.] From 1930 hrs 02/02/2022 to 2000 hrs 02/02/2022.
The forecast capacity reserve requirement is 870 MW.
The minimum capacity reserve available is 796 MW.
Manager NEM Real Time Operations