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Undesirable trading situation

An undesirable trading situation (UTS) arises when there is a threat to orderly trading on the wholesale market or settlement that cannot otherwise be resolved satisfactorily under the rules. The Commission is able to investigate any potential UTS and can take actions, as it considers appropriate, including suspending rule requirements and imposing new requirements on participants.

The Undesirable Trading Situation (UTS): Guidelines for Participants documents the framework within which the Board intends to manage a UTS, and sets out the process and contact details for parties to use in order to have the Board promptly consider any claim that a UTS exists or is developing.

The following lists UTSs cited:

UTS 12 November 2009

An Undesirable Trading Situation (UTS) claim was made by Contact Energy on 12 November 2009. Details of the claim are provided below.

Claim of UTS pdf [38 KB]

Contact Energy subsequently withdrew the claim on 13 November 2009.

UTS 19 May 2009

An Undesirable Trading Situation (UTS) claim was made by Contact Energy Limited on 22 May 2009. Details of the claim are provided below.

The Commission has ordered the delay of final prices for the 19th of May while the UTS claim is investigated.

Claim of UTS pdf [38 KB]

The indicative final prices for trading period 16 (the period of the UTS claim) as calculated by the pricing manager are made available for participants' review. These prices include the effect of applying the high spring washer price situation relaxation methodology.

Would be final prices for 19 May 2009 xls [76 KB]

The Electricity Commission Board considered the claim of an Undesirable Trading Situation (UTS) for trading period 16 on 19 May 2009 on 9 June 2009. The Board found that no UTS exists and ordered that final prices for 19 May 2009 be published. The Board's formal decision and the Pricing Manager and System Operator reports are provided below.

UTS 21 April 2009

An Undesirable Trading Situation (UTS) claim was made by Contact Energy Limited on 30 April 2009. Details of the claim are provided below.

The Commission has continued the delay to final prices and final reserve prices for the 21st of April 2009 so that it can consider the UTS claim.

Claim of UTS pdf [38 KB]

Relevant reports from the Pricing Manager and System Operator can be found on the Wholesale pricing issues page.

The Electricity Commission Board considered the claim of an Undesirable Trading Situation (UTS) for trading periods 37 and 38 on 21 April 2009 on 8 May 2009. The Board found that no UTS exists and ordered that final prices for 21 April 2009 be published. The Board's formal decision is provided below.

Final decision pdf [34 KB]

UTS 13 February 2009

An Undesirable Trading Situation (UTS) claim was made by Contact Energy Limited on 18 February 2009. Details of the claim are provided below.

Claim of UTS pdf [41 KB]

The Electricity Commission Board considered the claim of Undesirable Trading Situation (UTS) for trading period 24 on 13 February. The Board has found that there was no UTS. The Board's formal decision is provided below.

Final decision pdf [34 KB]

The Pricing Manager's report is made available for participants' information. Please note where the report refers to "would be final prices" those prices have now been published as final prices.