Filter by category
Filter by Date
DPV Contingency 1 (DPVC1) in the SA Region on 15/02/2024
AEMO has detected there is an elevated risk of the contingent disconnection of Distributed PV (DPV) which, together with the risk of loss of scheduled generation, exceeds secure thresholds in the South Australia region from 1230 hrs 15/02/2024 to 1400 hrs 15/02/2024.
Maximum DPV generation forecast by the Australian Solar Energy Forecasting System 2 (ASEFS2) is 1737 MW at 1330 hrs and the secure ASEFS2 DPV generation limit for the forecast operating conditions is 1796 MW.
AEMO is seeking a market response.
An insufficient market response may require AEMO to take action or intervene to maintain power system security in South Australia. This may result in action such as the recall of planned outages, direction of scheduled generation, curtailment of non-scheduled wind generation, and an instruction / direction to maintain DPV generation below a secure DPV generation threshold.
AEMO estimates the latest time at which it may need to intervene through an AEMO intervention event is 1130 hrs on 15/02/2024.
Manager NEM Real Time Operations
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 12/02/2024
Cancellation - AEMO Intervention Event - Intervention trading intervals - Direction SA region 12/02/2024
Refer Market Notice 114536
The AEMO Intervention Event and all associated directions are cancelled from 1800 hrs 14/02/2024
Manager NEM Real Time Operations
Direction - SA region 14/02/2024
Direction - SA region 14/02/2024
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 trading intervals during the event to be intervention trading intervals, commencing from the interval ending 1535 hrs on 14/02/2024.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Possible intervention to manage power system security in South Australia (SA) Region
Possible intervention to manage power system security in SA region
The synchronous generating units currently expected to be synchronised in SA from 0815 hrs 15/02/2024 will be inadequate to maintain a secure operating state in SA .
AEMO estimates that, in the absence of sufficient market response by 1530 hrs 14/02/2024, 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
Update - Lightning vulnerable lines in TAS region
Update - Lightning vulnerable lines in TAS region
Refer to AEMO Electricity Market Notice 114647 and 114734
At 1602 hrs 13/02/2024 the Norwood - Scottsdale 110kV line and the Norwood - Scottsdale - Derby 110kV line tripped.
The cause of the trip was identified as due to Lightning.
In accordance with SO_OP_3715, AEMO now considers the Norwood - Scottsdale 110kV line and the Norwood - Scottsdale - Derby 110kV line to be vulnerable with a category of Vulnerability due to Lightning.
Manager NEM Real Time Operations
Update - Direction - VIC Region - 14/02/2024
Update - Direction - VIC Region - 14/02/2024
Refer Market Notice 114697
The AEMO intervention event that commenced from interval ending 0720 hrs on 14/02/2024 is continuing.
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.
Manager NEM Real Time Operations
NEM Local Temperature Alerts for SA, VIC from 14 Feb 2024 to 18 Feb 2024
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): 17th Feb, 18th Feb
VIC
Mildura Ap (39+ Deg C): 18th Feb
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
Direction - VIC region 14/02/2024
Direction - VIC region 14/02/2024
In accordance with section 116 of the National Electricity Law, AEMO has issued a direction to a participant in the VIC 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 trading intervals during the event to be intervention trading intervals, commencing from the interval ending 0720 hrs on 14/02/2024.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Possible intervention to manage power system security in VIC region
Possible intervention to manage power system security in VIC region
The synchronous generating units currently expected to be synchronised in VIC from 0740 hrs 14/02/2024 will be inadequate to maintain a secure operating state in VIC .
AEMO estimates that, in the absence of sufficient market response by 0715 hrs 14/02/2024, AEMO may need to intervene by issuing a direction requiring one or more VIC synchronous generating unit(s) to operate or remain synchronised to maintain power system security in VIC.
Manager NEM Real Time Operations