Independent Market Operator
Administering the Western Australia Wholesale Electricity Market

Contact the IMO :
Independent Market Operator
Level 3, Governor Stirling Tower
197 St Georges Terrace
PERTH WA 6000

P: (08) 9254 4300
F: (08) 9254 4399
E: imo@imowa.com.au

Market Advisories


The IMO must inform Market Participants of impending situations that could impact market outcomes. It does this by issuing market advisories in the following situations:

  • Market system outages, whereby aspects of the market cannot run normally due to systems failures; and
  • Notification of suspension of any aspect of the market.

These advisories include information on how Market Participants should respond to the situation. Note that advisories related to dispatch are called dispatch advisories, and are issued by System Management.


List of Market Advisories

Market Advisory Type
Date
of
Release
Time
of
Release
WST/WDST
Expected
Duration
Description/Link
Stem Window Delay – Window is now Open
31/10/2008
09:40 AM
 
Stem Window Delay
31/10/2008
09:03 AM
 
Market System Outage
07/10/2008
11:15 AM
3 Hours
Stem Window Delay – Window is now Open
22/09/2008
09:50 AM
 
Stem Window Delay - Update
22/09/2008
09:40 AM
 
Stem Window Delay
22/09/2008
09:05 AM
 
Market System Outage
31/08/2008
10:15 AM
6 Hours
Market System Outage
01/08/2008
02:15 PM
1-2 Hour
Market System Outage
20/06/2008
02:10 PM
1 Hour
Market System Outage
17/05/2008
10:40 AM
 
Market System Outage
08/04/2008
03:00 PM
 
Market System Outage
08/04/2008
02:00 PM
1 Hour
Market System Outage
18/03/2008
08:05 AM
8.5 Hours
Market System Outage
01/03/2008
10:55 AM
05 Minutes
Market System Outage
01/03/2008
09:20 AM
30 Minutes
Market System Outage
01/03/2008
07:30 AM
TBA
Market System Outage
16/02/2008
08:57 AM
Unscheduled
Market System Outage
16/02/2008
07:53 AM
Unscheduled
Market System Outage
18/01/2008
01:15 PM
2 Hours
Market System Outage
19/12/2007
06:10 PM
1 Hour
Market System Outage
27/11/07
15:00 AM
approx 10
Market System Outage
27/11/07
13:50 PM
approx 10
Market System Outage - Rectified
22/11/2007
12:45 AM
 
Market System Outage
22/11/2007
12:05 AM
 
Market System Outage - Rectified
19/11/2007
11:55 AM
 
Market System Outage
19/11/2007
11:40 AM
 
Market System Outage - Rectified
12/11/2007
07:50 AM
 
Market System Outage
12/11/2007
07:45 AM
 
Market System Outage
08/08/2007
11:40 AM
 
Market System Outage
08/08/2007
11:05 AM
TBA
Market System Outage
25/07/2007
04:00 PM
see situation details
Market System Outage
07/07/2007
11:50 PM
 
Market System Outage
06/07/2007
1:40 PM
 
Market System Outage
06/07/2007
8:15 AM
 
System Outage - RECTIFIED
15/06/2007
3:45PM
 
Market System Outage
15/06/2007
1:30 PM
 
STEM Market Suspension
01/06/2007
10:20 AM
 
Market System Outage
31/05/2007
08:30 AM
N/A
Market System Outage
31/05/2007
08:20 AM
Approx 20
Scheduled Market System Outage
08/05/2007
2.40 PM
 
Market System Outage
07/05/2007
11:20 PM
10
Scheduled Market System Outage
03/05/2007
1.20 PM
 
Market System Outage
09/04/2007
8:50 AM
N/A
Delay in Closing STEM Window
06/03/2007
10:00 AM
 
Market System Outage
14/02/2007
4:20 PM
3 Hours Recurring
Market System Outage
14/02/2007
6:25 PM
To be advised
Market System Outage
14/02/2007
5:55 PM
0.5 Hour
STEM Window is now Open
13/02/2007
9:20 AM
 
Delay in Opening STEM window
13/02/2007
9:05 AM
 
STEM Market Suspension
10/02/2007
10:20 AM
Trading day
WEMS Change Notification
07/02/2007
9.15 AM
 
Market System Outage - Update
06/02/2007
8:30 AM
 
Market System Outage
06/02/2007
7:50 AM
Unknown (approx. 1 Hour)
Market System Outage
02/02/2007
5:10 PM
1.0 Hours
Market System Outage
02/02/2007
10:45 AM
6.0 Hours
Market System Outage
31/01/2007
7:10 PM
1.0 Hours
Market System Outage
29/01/2007
4:00 PM
45
Market System Outage - Update
28/01/2007
2:20 PM
 
Market System Outage
28/01/2007
12:00 PM
1.0 Hour
Market Systems Active
28/01/2007
6:45 PM
 
WEMS Change Notification
25/01/2007
8:21 AM
 
Market System Outage
24/01/2007
3:00 PM
3.0 Hours
Market Systems Active
24/01/2007
9:10 PM
 
Market System Outage
22/01/2007
5:30 PM
3.0 Hour
Market System Outage
11/01/2007
4:55 PM
1.0 Hour
Market System Outage
05/01/2007
4:35 PM
1.0 Hour
Market System Outage
03/01/2007
4:45 PM
1.0 Hours
Balancing Prices Republished
03/01/2007
9:45 AM
 
Market System Outage
02/01/2007
4:45 PM
30
Market System Outage
20/12/2006
4:00 PM
1.0 hours
Market System Outage
20/12/2006
9:30 AM
unscheduled
Market System Outage
13/12/2006
5:30 AM
3.5 hours
Market System Outage
08/12/2006
5:00 PM
2.0 hours
Market System Outage / Report Change
08/12/2006
3.06 PM
2.0 hours
Market System Outage
07/12/2006
2:20 PM
2 hours
Market System Outage
30/11/2006
10:00 AM
2.0 Hours
Market System Outage
14/11/2006
5:25 PM
8.25 Hours
Market System Outage
2/11/2006
4:30 PM
2.0 hours
Market System Outage
30/10/2006
4:45 PM
3 hours
STEM Market Suspension
26/09/2006
10:20 AM
Trading Day
Market System Outage
22/10/2006
8:59 AM
22 minutes
Market System Outage
05/10/2006
6:07 PM
2 hours
Market System Outage Complete
04/10/2006
5:50 PM
 
Market System Outage
04/10/2006
4:52 PM
30 minutes
STEM Market Suspension
27/09/2006
11:12 AM
Trading day
Market System Outage
25/09/2006
09:13 AM
 

 

This document is published in accordance with Market Rule 10.5.1 (k).