A number of our team noticed MN120401 at 21;19, and/or MN120403 at 22:35 last night as follows:
‘——————————————————————-
MARKET NOTICE
——————————————————————-
From : AEMO
To : NEMITWEB1
Creation Date : 13/11/2024 22:35:20
——————————————————————-
Notice ID : 120403
Notice Type ID : MARKET INTERVENTION
Notice Type Description : Reserve Contract / Direction / Instruction
Issue Date : 13/11/2024
External Reference : Update – Foreseeable AEMO intervention in VIC region
——————————————————————-
Reason :
AEMO ELECTRICITY MARKET NOTICE
Update – Foreseeable AEMO intervention in VIC region
Refer AEMO Electricity Market Notice 120401
AEMO has identified a foreseeable circumstance that may require an AEMO intervention event in the VIC region from 0930 hrs 14/11/2024.
The foreseeable circumstance requiring the need for intervention is System Strength.
AEMO estimates that, in the absence of sufficient market response by 0900 hrs 14/11/2024, AEMO may need to intervene by issuing a direction.
Manager NEM Real Time Operations
——————————————————————-
END OF REPORT
——————————————————————-’
Part of the reason for the need for this is that there are three of 10 coal units in Victoria offline at present – as seen in this snapshot from the ‘Generator Outages’ widget in ez2view at 09:20 (NEM time) on Thursday 14th November 2024:
We have:
1) Loy Yang A4 offline for planned outage
2) Yallourn unit 1 offline for a planned outage that looks to be finished soon
… note that this was noted in yesterday morning’s review of Yallourn operations.
3) Yallourn unit 3 is still offline following the tube leak outage that began on Tuesday 12th November 2024.
… note that this was noted in yesterday morning’s review of Yallourn operations.
As a sign of the times, the AEMO has proceeded with multiple directions, as follows:
‘——————————————————————-
MARKET NOTICE
——————————————————————-
From : AEMO
To : NEMITWEB1
Creation Date : 14/11/2024 08:57:38
——————————————————————-
Notice ID : 120404
Notice Type ID : MARKET INTERVENTION
Notice Type Description : Reserve Contract / Direction / Instruction
Issue Date : 14/11/2024
External Reference : Direction – VIC region 14/11/2024
——————————————————————-
Reason :
AEMO ELECTRICITY MARKET NOTICE
Direction – VIC region 14/11/2024
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(a1)(1).
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 0905 hrs on 14/11/2024.
Intervention pricing does not apply to this AEMO intervention event.
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
——————————————————————-
END OF REPORT
——————————————————————-‘
Following a recent (very useful!) upgrade in their Market Notice (market transparency) processes, there were 4 Market Notices that followed …
Jeeralang B1 directed online for System Strength shortfall
Here’s reference to JLB01 in MN120405
——————————————————————-
MARKET NOTICE
——————————————————————-
From : AEMO
To : NEMITWEB1
Creation Date : 14/11/2024 08:58:54
——————————————————————-
Notice ID : 120405
Notice Type ID : MARKET INTERVENTION
Notice Type Description : Reserve Contract / Direction / Instruction
Issue Date : 14/11/2024
External Reference : Direction – VIC region to EnergyAustralia Ecogen Pty Ltd – JLB01 JEERALANG B PO
——————————————————————-
Reason :
AEMO ELECTRICITY MARKET NOTICE
Direction – VIC region to EnergyAustralia Ecogen Pty Ltd – JLB01 JEERALANG B PO
Refer to Market Notice 120404
In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to EnergyAustralia Ecogen Pty Ltd. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).
Direction issued to: EnergyAustralia Ecogen Pty Ltd – JLB01 JEERALANG B PO at 0900 hrs 14/11/2024
Type of resource: generating unit
Required actions: Synchronise and follow dispatch targets at 0930 hrs 14/11/2024
Services provided: System Strength
Circumstances necessitating the Direction:System Strength
Circumstances necessitating the Direction additional detail: intervention is required to maintain the power system in a secure operating state
Expected duration: 1500 hrs 14/11/2024.
EnergyAustralia Ecogen Pty Ltd does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.
Manager NEM Real Time Operations
——————————————————————-
END OF REPORT
——————————————————————-
Jeeralang B2 directed online for System Strength shortfall
Here’s reference to JLB02 in MN120406
——————————————————————-
MARKET NOTICE
——————————————————————-
From : AEMO
To : NEMITWEB1
Creation Date : 14/11/2024 08:59:54
——————————————————————-
Notice ID : 120406
Notice Type ID : MARKET INTERVENTION
Notice Type Description : Reserve Contract / Direction / Instruction
Issue Date : 14/11/2024
External Reference : Direction – VIC region to EnergyAustralia Ecogen Pty Ltd – JLB02 JEERALANG B PO
——————————————————————-
Reason :
AEMO ELECTRICITY MARKET NOTICE
Direction – VIC region to EnergyAustralia Ecogen Pty Ltd – JLB02 JEERALANG B PO
Refer to Market Notice 120404
In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to EnergyAustralia Ecogen Pty Ltd. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).
Direction issued to: EnergyAustralia Ecogen Pty Ltd – JLB02 JEERALANG B PO at 0900 hrs 14/11/2024
Type of resource: generating unit
Required actions: Synchronise and follow dispatch targets at 0930 hrs 14/11/2024
Services provided: System Strength
Circumstances necessitating the Direction:System Strength
Circumstances necessitating the Direction additional detail: intervention is required to maintain the power system in a secure operating state
Expected duration: 1500 hrs 14/11/2024.
EnergyAustralia Ecogen Pty Ltd does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.
Manager NEM Real Time Operations
——————————————————————-
END OF REPORT
——————————————————————-
Murray 2-2 directed online for System Strength shortfall
Here’s reference to MURR2-2in MN120407
——————————————————————-
MARKET NOTICE
——————————————————————-
From : AEMO
To : NEMITWEB1
Creation Date : 14/11/2024 09:01:05
——————————————————————-
Notice ID : 120407
Notice Type ID : MARKET INTERVENTION
Notice Type Description : Reserve Contract / Direction / Instruction
Issue Date : 14/11/2024
External Reference : Direction – VIC region to Snowy Hydro Limited – MURR2-2 MURRAY2
——————————————————————-
Reason :
AEMO ELECTRICITY MARKET NOTICE
Direction – VIC region to Snowy Hydro Limited – MURR2-2 MURRAY2
Refer to Market Notice 120404
In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to Snowy Hydro Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).
Direction issued to: Snowy Hydro Limited – MURR2-2 MURRAY2 at 0900 hrs 14/11/2024
Type of resource: generating unit operating as synchronous condenser
Required actions: Synchronise and operate as a synchronous condenser at 0930 hrs 14/11/2024
Services provided: System Strength
Circumstances necessitating the Direction:System Strength
Circumstances necessitating the Direction additional detail: intervention is required to maintain the power system in a secure operating state
Expected duration: 1500 hrs 14/11/2024.
Snowy Hydro Limited does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.
Manager NEM Real Time Operations
——————————————————————-
END OF REPORT
——————————————————————-
Murray 2-3 directed online for System Strength shortfall
Here’s reference to MURR2-3 in MN120408
——————————————————————-
MARKET NOTICE
——————————————————————-
From : AEMO
To : NEMITWEB1
Creation Date : 14/11/2024 09:02:11
——————————————————————-
Notice ID : 120408
Notice Type ID : MARKET INTERVENTION
Notice Type Description : Reserve Contract / Direction / Instruction
Issue Date : 14/11/2024
External Reference : Direction – VIC region to Snowy Hydro Limited – MURR2-3 MURRAY2
——————————————————————-
Reason :
AEMO ELECTRICITY MARKET NOTICE
Direction – VIC region to Snowy Hydro Limited – MURR2-3 MURRAY2
Refer to Market Notice 120404
In accordance with section 116 of the National Electricity Law, AEMO is issuing a direction to Snowy Hydro Limited. For the purposes of the National Electricity Rules this is a direction under clause 4.8.9(a1)(1).
Direction issued to: Snowy Hydro Limited – MURR2-3 MURRAY2 at 0900 hrs 14/11/2024
Type of resource: generating unit operating as synchronous condenser
Required actions: Synchronise and operate as a synchronous condenser at 0930 hrs 14/11/2024
Services provided: System Strength
Circumstances necessitating the Direction:System Strength
Circumstances necessitating the Direction additional detail: intervention is required to maintain the power system in a secure operating state
Expected duration: 1500 hrs 14/11/2024
Snowy Hydro Limited does not incur any civil monetary liability for a relevant action taken in accordance with this direction unless the action is taken in bad faith.
Manager NEM Real Time Operations
——————————————————————-
END OF REPORT
——————————————————————-
That’s quite a few units to replace the system strength contribution of one (or more?) coal units offline
PS1 … Loy Yang A2 has come offline
Shortly after this article was published, we saw (and noted) that ‘Loy Yang A2 joins three other coal units in VIC offline’
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