Filter by category
Filter by Date
[EventId:202303172015_confirmed] Prices for interval 17-Mar-2023 20:15 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1145 hrs on 20 March 2023
PRICES ARE NOW CONFIRMED for trading interval 17-Mar-2023 20:15.
In accordance with Market Notice
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
ENERGY
NSW1 $254.92 $119.81
QLD1 $270.00 $128.22
VIC1 $222.69 $113.45
LOWER5MIN
NSW1 $0.39 $0.50
LOWER60SEC
NSW1 $0.39 $0.80
LOWER6SEC
NSW1 $0.19 $0.38
LOWERREG
NSW1 $3.98 $4.14
RAISE5MIN
NSW1 $0.69 $0.62
RAISE60SEC
NSW1 $39.00 $2.36
RAISE6SEC
NSW1 $127.88 $4.90
RAISEREG
NSW1 $167.27 $14.74
This is an AEMO autogenerated Market Notice.
[EventId:202303141455_confirmed] Prices for interval 14-Mar-2023 14:55 are now confirmed
Issued by Australian Energy Market Operator Ltd at 1507 hrs on 15 March 2023
PRICES ARE NOW CONFIRMED for trading interval 14-Mar-2023 14:55.
In accordance with Market Notice 106608 AEMO has reviewed this trading interval and determined that:
- Over-Constrained Dispatch has been resolved for this interval
Changed Prices ($/MWh)
TYPE
Region Original Adjusted
Price Price
RAISEREG
TAS1 $5.68 $42.74
This is an AEMO autogenerated Market Notice.
Updated NSW system normal voltage stability limit
Refer to market notice 105936?
The Murraylink Very Fast Runback (VFRB) scheme was modified to increase the capacity of the network due to the increase in generation in the area. The scheme was changed so Murraylink VFRB could be activated / de-activated depending on the time of day on the monitored 220kV lines in north-west Victoria.?
Transgrid has advised AEMO on a revision to the X5 voltage collapse limit with this change to VFRB. This will now be managed by two limits.?
The following constraint equation changes will be implemented at 0900 hrs on Thursday 16th March 2023:
N^^N_NIL_X5_BEKG (replaces N^^N_NIL_3)
N^^N_NIL_X5_BESH (new)?
For full details on the factors on constraint equations and all the constraint equation changes - these have now been loaded into AEMO's pre-production systems.?
Ben Blake
AEMO Operations
Update to system strength requirements in North Queensland
Refer to market notice 102074
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of Kaban wind farm in Far North Queensland, the system normal equations have been revised to include following combinations.
-If Stanwell >=2, Stanwell + Calllide >=3, Gladstone >= 1, Stanwell + Callide + Gladstone >= 7, Kareeya >=0, Haughton Syncon status = ON/OFF, North Queensland load >=250 MW,
Ross+FNQ load >=100 MW, limit Kaban Windfarm to 100% (with Haughton Syncon ON), 0% (with Haughton Syncon Syncon OFF) and no limit to other NQLD Plants.
A revision to the constraint equations will be implemented at 1400 hrs on Wednesday 1st March 2023.
The new combinations have now published in a limits advice document on AEMO's website. For more information refer to the new limits advice: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
This advice contains all the combinations for Queensland for system normal cases. Additional information has been included in the limit advice to clarify the requirement to disconnect all inverters/turbines under certain system conditions.
The constraint equation in the Q-NIL set of the form below will be modified:
Q_NIL_STRGTH_XXXX
Q_NIL_STRGTH_XXXX_I
AEMO Operations
Changes to Murraylink Very Fast Runback and constraints in Victoria
The Murraylink Very Fast Runback (VFRB) scheme is being modified to increase the capacity of the network due to the increase in generation in the area. The scheme will be changed so Murraylink VFRB can be activated / de-activated depending on the time of day on the monitored 220kV lines in north-west Victoria.
The changes to the scheme will be activated and constraint equaiton modified at 1200hrs Monday 20th February 2023. The following system normal constraint equations will be modified:
V^^V_NIL_KGTS
V^^V_NIL_KGTS_2
V>>SML_NIL_7A
V>>SML_NIL_7B
V>>SML_NIL_7C
V>>V_NIL_13
V>>V_NIL_14
V>>V_NIL_20
V>>V_NIL_21
V>>V_NIL_22
V>>V_NIL_23
V>>V_NIL_24
V>>V_NIL_25
V>>V_NIL_26
V>>V_NIL_26_1
V>>V_NIL_26A
V>>V_NIL_26A_1
For full details on the factors on constraint equations and all the constrint equation changes - these have now been loaded into AEMO's pre-production systems.
Ben Blake
AEMO Operations
[EventId:196] AP ENDED for market ancillary services in SA1 at 26 November 2022 03:55
Issued by Australian Energy Market Operator Ltd at 0355 hrs on 25 November 2022
ADMINISTERED PRICE PERIOD ENDS in SA1 region.
In accordance with Clause 3.14.2(b) of the National Electricity Rules, AEMO is notifying market participants that the administered price period declared for the SA1 region in market notice 103934 will end at 0400 hrs on 26 November 2022.
This is an AEMO autogenerated Market Notice.
[EventId:196] AP STARTED for market ancillary services in SA1 at 25 November 2022 0355
Issued by Australian Energy Market Operator Ltd at 0355 hrs on 25 November 2022
ADMINISTERED PRICE PERIOD DECLARED in SA1 region.
AEMO has determined that the rolling sum of the uncapped market ancillary Lower 60 Sec, Raise Reg services prices for the SA1 region over the previous 2016 trading intervals has exceeded the cumulative price threshold (CPT) of $1,398,100.00.
In accordance with Clause 3.14.2(b) of the National Electricity Rules, AEMO has determined that an administered price period will commence at the trading interval starting 0405 on 25 November 2022 and will continue through to the end of that trading day.
An administered price cap (APC) of 300 $/MWh will apply to all trading intervals during this administered price period. This APC will apply to all market ancillary service prices in the SA1 region.
AEMO will continue to monitor the rolling sum of the uncapped market ancillary service prices and issue further Market Notices as required.
This is an AEMO autogenerated Market Notice.
[EventId:195] AP ENDED for market ancillary services in SA1 at 25 November 2022 03:55
Issued by Australian Energy Market Operator Ltd at 0355 hrs on 24 November 2022
ADMINISTERED PRICE PERIOD ENDS in SA1 region.
In accordance with Clause 3.14.2(b) of the National Electricity Rules, AEMO is notifying market participants that the administered price period declared for the SA1 region in market notice 103908 will end at 0400 hrs on 25 November 2022.
This is an AEMO autogenerated Market Notice.
[EventId:195] AP STARTED for market ancillary services in SA1 at 24 November 2022 0355
Issued by Australian Energy Market Operator Ltd at 0355 hrs on 24 November 2022
ADMINISTERED PRICE PERIOD DECLARED in SA1 region.
AEMO has determined that the rolling sum of the uncapped market ancillary Lower 60 Sec, Raise 60 Sec, Lower Reg, Raise Reg services prices for the SA1 region over the previous 2016 trading intervals has exceeded the cumulative price threshold (CPT) of $1,398,100.00.
In accordance with Clause 3.14.2(b) of the National Electricity Rules, AEMO has determined that an administered price period will commence at the trading interval starting 0405 on 24 November 2022 and will continue through to the end of that trading day.
An administered price cap (APC) of 300 $/MWh will apply to all trading intervals during this administered price period. This APC will apply to all market ancillary service prices in the SA1 region.
AEMO will continue to monitor the rolling sum of the uncapped market ancillary service prices and issue further Market Notices as required.
This is an AEMO autogenerated Market Notice.