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History

There are three balancing prices determined by the IMO:

  1.  The Marginal Cost Administrative Price (MCAP). This is the dollar per MWh price calculated in accordance with clause 6.14.2.
  2.  The Upward Deviation Administrative Price (UDAP). This is the amount calculated under clause 6.14.6.
  3.  The Downward Deviation Administrative Price (DDAP). This is the amount calculated under clause 6.14.5.

The MCAP for a given Trading Interval will normally equal the STEM clearing price for that Trading Interval. However, a different balancing price will apply if the real-time effective demand deviates by more than ±5% from the total demand expected based on the combined bilateral and STEM positions of the Market Participants.

The IMO must make the values of MCAP, UDAP and DDAP available from the Market Web-Site for each Trading Interval in each completed Trading Day in the previous 12 calendar months.

Please note that the Balancing data is calculated 2 days after the relevant trading day and is dependant on STEM trading results and system load information. The Balancing data is an estimate based on data provided by other parties at the time and may therefore be subject to change.

Further information can be found in the Market Rules and the Market Summary Document.

The following table contains links for each trading day for which the Balancing Prices Historical Summary Data is available. The Balancing Prices Historical Summary Data is available from either Market Commencement (21 September 2006), or for the last year, up to the latest date for which the data is available. Click on a trading day link to see the Summary Data for that date.

Public Balancing Historical Summary Data
List of Available Trading Days (SWIS)
10/03/2010 09/03/2010 08/03/2010 07/03/2010 06/03/2010 05/03/2010 04/03/2010 03/03/2010 02/03/2010
01/03/2010 28/02/2010 27/02/2010 26/02/2010 25/02/2010 24/02/2010 23/02/2010 22/02/2010 21/02/2010
20/02/2010 19/02/2010 18/02/2010 17/02/2010 16/02/2010 15/02/2010 14/02/2010 13/02/2010 12/02/2010
11/02/2010 10/02/2010 09/02/2010 08/02/2010 07/02/2010 06/02/2010 05/02/2010 04/02/2010 03/02/2010
02/02/2010 01/02/2010 31/01/2010 30/01/2010 29/01/2010 28/01/2010 27/01/2010 26/01/2010 25/01/2010
24/01/2010 23/01/2010 22/01/2010 21/01/2010 20/01/2010 19/01/2010 18/01/2010 17/01/2010 16/01/2010
15/01/2010 14/01/2010 13/01/2010 12/01/2010 11/01/2010 10/01/2010 09/01/2010 08/01/2010 07/01/2010
06/01/2010 05/01/2010 04/01/2010 03/01/2010 02/01/2010 01/01/2010 31/12/2009 30/12/2009 29/12/2009
28/12/2009 27/12/2009 26/12/2009 25/12/2009 24/12/2009 23/12/2009 22/12/2009 21/12/2009 20/12/2009
19/12/2009 18/12/2009 17/12/2009 16/12/2009 15/12/2009 14/12/2009 13/12/2009 12/12/2009 11/12/2009
10/12/2009 09/12/2009 08/12/2009 07/12/2009 06/12/2009 05/12/2009 04/12/2009 03/12/2009 02/12/2009
01/12/2009 30/11/2009 29/11/2009 28/11/2009 27/11/2009 26/11/2009 25/11/2009 24/11/2009 23/11/2009
22/11/2009 21/11/2009 20/11/2009 19/11/2009 18/11/2009 17/11/2009 16/11/2009 15/11/2009 14/11/2009
13/11/2009 12/11/2009 11/11/2009 10/11/2009 09/11/2009 08/11/2009 07/11/2009 06/11/2009 05/11/2009
04/11/2009 03/11/2009 02/11/2009 01/11/2009 31/10/2009 30/10/2009 29/10/2009 28/10/2009 27/10/2009
26/10/2009 25/10/2009 24/10/2009 23/10/2009 22/10/2009 21/10/2009 20/10/2009 19/10/2009 18/10/2009
17/10/2009 16/10/2009 15/10/2009 14/10/2009 13/10/2009 12/10/2009 11/10/2009 10/10/2009 09/10/2009
08/10/2009 07/10/2009 06/10/2009 05/10/2009 04/10/2009 03/10/2009 02/10/2009 01/10/2009 30/09/2009
29/09/2009 28/09/2009 27/09/2009 26/09/2009 25/09/2009 24/09/2009 23/09/2009 22/09/2009 21/09/2009
20/09/2009 19/09/2009 18/09/2009 17/09/2009 16/09/2009 15/09/2009 14/09/2009 13/09/2009 12/09/2009
11/09/2009 10/09/2009 09/09/2009 08/09/2009 07/09/2009 06/09/2009 05/09/2009 04/09/2009 03/09/2009
02/09/2009 01/09/2009 31/08/2009 30/08/2009 29/08/2009 28/08/2009 27/08/2009 26/08/2009 25/08/2009
24/08/2009 23/08/2009 22/08/2009 21/08/2009 20/08/2009 19/08/2009 18/08/2009 17/08/2009 16/08/2009
15/08/2009 14/08/2009 13/08/2009 12/08/2009 11/08/2009 10/08/2009 09/08/2009 08/08/2009 07/08/2009
06/08/2009 05/08/2009 04/08/2009 03/08/2009 02/08/2009 01/08/2009 31/07/2009 30/07/2009 29/07/2009
28/07/2009 27/07/2009 26/07/2009 25/07/2009 24/07/2009 23/07/2009 22/07/2009 21/07/2009 20/07/2009
19/07/2009 18/07/2009 17/07/2009 16/07/2009 15/07/2009 14/07/2009 13/07/2009 12/07/2009 11/07/2009
10/07/2009 09/07/2009 08/07/2009 07/07/2009 06/07/2009 05/07/2009 04/07/2009 03/07/2009 02/07/2009
01/07/2009 30/06/2009 29/06/2009 28/06/2009 27/06/2009 26/06/2009 25/06/2009 24/06/2009 23/06/2009
22/06/2009 21/06/2009 20/06/2009 19/06/2009 18/06/2009 17/06/2009 16/06/2009 15/06/2009 14/06/2009
13/06/2009 12/06/2009 11/06/2009 10/06/2009 09/06/2009 08/06/2009 07/06/2009 06/06/2009 05/06/2009
04/06/2009 03/06/2009 02/06/2009 01/06/2009 31/05/2009 30/05/2009 29/05/2009 28/05/2009 27/05/2009
26/05/2009 25/05/2009 24/05/2009 23/05/2009 22/05/2009 21/05/2009 20/05/2009 19/05/2009 18/05/2009
17/05/2009 16/05/2009 15/05/2009 14/05/2009 13/05/2009 12/05/2009 11/05/2009 10/05/2009 09/05/2009
08/05/2009 07/05/2009 06/05/2009 05/05/2009 04/05/2009 03/05/2009 02/05/2009 01/05/2009 30/04/2009
29/04/2009 28/04/2009 27/04/2009 26/04/2009 25/04/2009 24/04/2009 23/04/2009 22/04/2009 21/04/2009
20/04/2009 19/04/2009 18/04/2009 17/04/2009 16/04/2009 15/04/2009 14/04/2009 13/04/2009 12/04/2009
11/04/2009 10/04/2009 09/04/2009 08/04/2009 07/04/2009 06/04/2009 05/04/2009 04/04/2009 03/04/2009
02/04/2009 01/04/2009 31/03/2009 30/03/2009 29/03/2009 28/03/2009 27/03/2009 26/03/2009 25/03/2009
24/03/2009 23/03/2009 22/03/2009 21/03/2009 20/03/2009 19/03/2009 18/03/2009 17/03/2009 16/03/2009
15/03/2009 14/03/2009 13/03/2009 12/03/2009 11/03/2009 10/03/2009 09/03/2009 08/03/2009 07/03/2009
06/03/2009 05/03/2009 04/03/2009 03/03/2009 02/03/2009 01/03/2009 28/02/2009 27/02/2009 26/02/2009
25/02/2009 24/02/2009 23/02/2009 22/02/2009 21/02/2009 20/02/2009 19/02/2009 18/02/2009 17/02/2009
16/02/2009 15/02/2009 14/02/2009 13/02/2009 12/02/2009 11/02/2009 10/02/2009 09/02/2009 08/02/2009
07/02/2009 06/02/2009 05/02/2009 04/02/2009 03/02/2009 02/02/2009 01/02/2009