Market Notices

AEMO ELECTRICITY MARKET NOTICE

Brisbane Communication Issues - 27th May 2016

This is to advise that problems exist on the AEMO Brisbane Control Centre Phone system.

Participants who normally communicate with the Brisbane Control Centre are advised to utilise the backup telephone numbers or the alternative Sydney Control Centre contact numbers.

Further information will be provided when the problem is rectified.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE.


Planned outages of Moorabool-Sydenham No.1 500 kV line and Sydenham-South Morang No.1 500 kV line - Victoria Region on 25 May and 30 May 2016.

There are planned outages of Moorabool-Sydenham No.1 500 kV line and Sydenham-South Morang No.1 500 kV line between 0630-1630hrs on 25 May 2016 and 0630-1800hrs on 30 May 2016.

During these outages, South Australia region remains connected to the NEM for the first contingency (trip of the Moorabool - Sydenham No.2 500 kV line). However, there is a potential risk of South Australia region separation from the rest of the NEM for the subsequent contingency following the first contingency.

AEMO will invoke the following FCAS regulation constraint sets after the first contingency during this outage to secure the power system in South Australia region.

F-S_LREG_0035
F-S_RREG_0035

Refer to AEMO Network Outage Schedule (NOS) for further details


Operations Planning

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line in Tasmania due to Lightning.

Refer AEMO Electricity Market Notice 53432

There is no longer any lightning activity in the vicinity of the Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 2310 hrs.


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event: Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line in Tasmania due to Lightning.

Lightning is occurring near the Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line.

AEMO considers the simultaneous trip of those circuits to now be more likely.

Therefore AEMO has reclassified this as a credible contingency event from 2210 hrs 19/05/16 until further notice.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1709 hrs on 19 May 2016

PRICES ARE NOW CONFIRMED for dispatch interval 19-May-2016 10:25.

In accordance with Market Notice 53415 AEMO has reviewed this dispatch interval and determined that:
- Over-Constrained Dispatch has been resolved for this interval

Changed Prices ($/MWh)

TYPE
Region Original Adjusted
Price Price
ENERGY
TAS1 $13,800.00 $345.80
RAISE5MIN
TAS1 $13,800.00 $4.20
RAISE60SEC
TAS1 $13,800.00 $68.30
RAISE6SEC
TAS1 $13,800.00 $162.35
RAISEREG
TAS1 $13,800.00 $4.20


This is an AEMO autogenerated Market Notice.

AEMO ELECTRICITY MARKET NOTICE

Issued by Australian Energy Market Operator Ltd at 1708 hrs on 19 May 2016

PRICES ARE NOW CONFIRMED for dispatch interval 19-May-2016 10:20.

In accordance with Market Notice 53414 AEMO has reviewed this dispatch interval and determined that:
- Manifestly Incorrect Inputs did not apply
- Over-Constrained Dispatch has been resolved for dispatch interval

Changed Prices ($/MWh)

TYPE
Region Original Adjusted
Price Price
ENERGY
TAS1 $13,800.00 $317.78
LOWER6SEC
TAS1 $13,800.00 $0.12
RAISE5MIN
TAS1 $13,800.00 $4.20
RAISE60SEC
TAS1 $13,800.00 $0.80
RAISE6SEC
TAS1 $13,800.00 $311.97
RAISEREG
TAS1 $13,800.00 $4.20


This is an AEMO autogenerated Market Notice.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line in Tasmania due to Lightning.

Refer AEMO Electricity Market Notice 53427

There is no longer any lightning activity in the vicinity of the Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 1255hrs.


Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event: Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line in Tasmania due to Lightning.
Lightning is occurring near the Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line.
AEMO considers the simultaneous trip of those circuits to now be more likely.
Therefore AEMO has reclassified this as a credible contingency event from 1210 hrs 19 MAY 2016 until further notice.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Chapel Street - Liapootah No.1 and No.2 220 kV Lines in Tasmania due to Lightning.
Refer AEMO Electricity Market Notice 53419
There is no longer any lightning activity in the vicinity of the Chapel Street - Liapootah No.1 and No.2 220 kV Lines.
AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 1130 hrs.
Constraint Set T-CSLI_N-2 revoked.

Manager NEM Real Time Operations