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75488RESERVE NOTICE28/04/2020 09:10:07 AM
RESERVE NOTICE MT PASA PUBLICATION 28 April 2020
The MTPASA result published on 28 April 2020 identifies no Low Reserve Conditions.
Please note that MTPASA informs the market of potential reliability issues to allow the market to respond in the first instance, potentially avoiding the need for any market intervention or direction from AEMO.
For further information, please refer to:
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Data/Market-Management-System-MMS/Projected-Assessment-of-System-Adequacy
This notice supersedes Market Notice 75428 published on 21 April 2020.
Background
As part of a broader process of implementing the reliability standard, AEMO runs the Medium Term Projected Assessment of System Adequacy (MTPASA) process weekly to forecast expected unserved energy levels over a two year period. If the expected annual unserved energy exceeds the maximum level specified by the Reliability Standard, a Low Reserve Condition is identified.
For more information about how AEMO implements the reliability standard, please view the Reliability Standard Implementation Guidelines (RSIG) available on AEMO's website at
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Planning-and-forecasting/Reliability-Standard-Implementation-Guidelines
Forecasting
AEMO
Please note that MTPASA informs the market of potential reliability issues to allow the market to respond in the first instance, potentially avoiding the need for any market intervention or direction from AEMO.
For further information, please refer to:
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Data/Market-Management-System-MMS/Projected-Assessment-of-System-Adequacy
This notice supersedes Market Notice 75428 published on 21 April 2020.
Background
As part of a broader process of implementing the reliability standard, AEMO runs the Medium Term Projected Assessment of System Adequacy (MTPASA) process weekly to forecast expected unserved energy levels over a two year period. If the expected annual unserved energy exceeds the maximum level specified by the Reliability Standard, a Low Reserve Condition is identified.
For more information about how AEMO implements the reliability standard, please view the Reliability Standard Implementation Guidelines (RSIG) available on AEMO's website at
https://www.aemo.com.au/Electricity/National-Electricity-Market-NEM/Planning-and-forecasting/Reliability-Standard-Implementation-Guidelines
Forecasting
AEMO
75487NON-CONFORMANCE27/04/2020 08:30:13 PM
NON-CONFORMANCE Region TAS1 Monday, 27 April 2020
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE TAS1 Region Monday, 27 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: CTHLWF1
Duration: 27/04/2020 19:55 to 27/04/2020 20:30
Amount: 6 MW
Constraint: NC-T_CTHLWF1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE TAS1 Region Monday, 27 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: CTHLWF1
Duration: 27/04/2020 19:55 to 27/04/2020 20:30
Amount: 6 MW
Constraint: NC-T_CTHLWF1
Auto-generated on behalf of Manager NEM Real Time Operations
75486NON-CONFORMANCE27/04/2020 05:15:12 PM
NON-CONFORMANCE Region NSW1 Monday, 27 April 2020
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Monday, 27 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: MP2
Duration: 27/04/2020 17:10 to 27/04/2020 17:15
Amount: 50 MW
Constraint: NC-N_MP2
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Monday, 27 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: MP2
Duration: 27/04/2020 17:10 to 27/04/2020 17:15
Amount: 50 MW
Constraint: NC-N_MP2
Auto-generated on behalf of Manager NEM Real Time Operations
75485MARKET INTERVENTION27/04/2020 04:56:40 PM
Direction - SA region - 27/04/2020
AEMO ELECTRICITY MARKET NOTICE.
Direction - SA region - 27/04/2020
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 dispatch intervals during the event to be intervention dispatch intervals, commencing from the interval ending 1705 hrs on 27/04/2020.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
Direction - SA region - 27/04/2020
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 dispatch intervals during the event to be intervention dispatch intervals, commencing from the interval ending 1705 hrs on 27/04/2020.
Intervention pricing does not apply to this AEMO intervention event.
Manager NEM Real Time Operations
75483MARKET INTERVENTION27/04/2020 02:07:36 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 expected to be synchronised in SA from 0230 hrs 28/04/2020 to 0400 hrs 29/04/2020 in Pre-dispatch published at 1400 hrs 27/04/2020 are inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO currently estimates that, in the absence of sufficient market response by 1700 hrs 27/04/2020, 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
Possible intervention to manage power system security in South Australia (SA) Region
The synchronous generating units expected to be synchronised in SA from 0230 hrs 28/04/2020 to 0400 hrs 29/04/2020 in Pre-dispatch published at 1400 hrs 27/04/2020 are inadequate to maintain sufficient system strength in SA and hence a secure operating state.
AEMO currently estimates that, in the absence of sufficient market response by 1700 hrs 27/04/2020, 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
75482CONSTRAINTS27/04/2020 12:59:44 PM
Update to system strength requirements in North Queensland
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 75226
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland. A revision to the requirements will be implemented at 1400 hrs today.
The revised minimum generator combinations and limits are:
1 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 4 x Kareeya, 2 x Barron Gorge: 100% output
2 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 4 x Kareeya, 1 x Barron Gorge: 80% output
3 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 2 x Kareeya, 1 x Townsville GT: 80% output
4 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 2 x Kareeya, 1 x Barron Gorge: 70% output
4H - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 2 x Kareeya, 1 x Barron Gorge, 50% or less output at Mt Emerald: 100% output for Haughton solar farm
5 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 4 x Kareeya: 70% output
The following new combination will also be implemented:
6- 3 x Stanwell, 2 x Callide C, 3 x Gladstone, 9 x Total Stanwell+Callide+Gladstone, 4 x Kareeya: 20% output
If these combinations are not met, Mt Emerald WF, Sun metals SF and Haughton SF have a limit of 0 MW and 0 inverters.
The constraint equations are: Q_NIL_STRGTH_MEWF, Q_NIL_STRGTH_HAUSF, Q_NIL_STRGTH_SMSF.
For further details please contact James Lindley at james.lindley@aemo.com.au or Simon Taylor at businessdevelopment@powerlink.com.au
Mya San
AEMO Operations
Refer to market notice 75226
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland. A revision to the requirements will be implemented at 1400 hrs today.
The revised minimum generator combinations and limits are:
1 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 4 x Kareeya, 2 x Barron Gorge: 100% output
2 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 4 x Kareeya, 1 x Barron Gorge: 80% output
3 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 2 x Kareeya, 1 x Townsville GT: 80% output
4 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 2 x Kareeya, 1 x Barron Gorge: 70% output
4H - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 2 x Kareeya, 1 x Barron Gorge, 50% or less output at Mt Emerald: 100% output for Haughton solar farm
5 - 3 x Stanwell, 1 x Callide B, 1 x Callide C, 3 x Gladstone, 10 x Total Stanwell+Callide+Gladstone, 4 x Kareeya: 70% output
The following new combination will also be implemented:
6- 3 x Stanwell, 2 x Callide C, 3 x Gladstone, 9 x Total Stanwell+Callide+Gladstone, 4 x Kareeya: 20% output
If these combinations are not met, Mt Emerald WF, Sun metals SF and Haughton SF have a limit of 0 MW and 0 inverters.
The constraint equations are: Q_NIL_STRGTH_MEWF, Q_NIL_STRGTH_HAUSF, Q_NIL_STRGTH_SMSF.
For further details please contact James Lindley at james.lindley@aemo.com.au or Simon Taylor at businessdevelopment@powerlink.com.au
Mya San
AEMO Operations
75481INTER-REGIONAL TRANSFER27/04/2020 05:55:45 AM
Cancellation - Inter-regional transfer limit variation: Hazelwood - South Morang No.2 500 kV Line (Vic) - Voltage Control
AEMO ELECTRICITY MARKET NOTICE
Refer AEMO Electricity Market Notice 75472
The Hazelwood - South Morang No.2 500 kV Line has been returned to service.
The following constraint set was revoked at 0555 hrs 27/04/2020.
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1
Manager NEM Real Time Operations
Refer AEMO Electricity Market Notice 75472
The Hazelwood - South Morang No.2 500 kV Line has been returned to service.
The following constraint set was revoked at 0555 hrs 27/04/2020.
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1
Manager NEM Real Time Operations
75480MARKET INTERVENTION26/04/2020 03:30:22 PM
Cancellation: AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 24/04/2020
AEMO ELECTRICITY MARKET NOTICE
Refer Market Notice 75468
The AEMO Intervention Event and all associated directions are cancelled from 1500 hrs 26/04/2020.
Manager NEM Real Time Operation
Refer Market Notice 75468
The AEMO Intervention Event and all associated directions are cancelled from 1500 hrs 26/04/2020.
Manager NEM Real Time Operation
75478NON-CONFORMANCE26/04/2020 03:00:24 AM
NON-CONFORMANCE Region NSW1 Sunday, 26 April 2020
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE NSW1 Region Sunday, 26 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: VP5
Duration: 26/04/2020 02:55 to 26/04/2020 03:00
Amount: -30 MW
Constraint: NC-N_VP5
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE NSW1 Region Sunday, 26 April 2020
AEMO declared a schedule generating unit non-conforming
Unit: VP5
Duration: 26/04/2020 02:55 to 26/04/2020 03:00
Amount: -30 MW
Constraint: NC-N_VP5
Auto-generated on behalf of Manager NEM Real Time Operations