Ventia Utility Services Pty Ltd (ACN 010 725 247) (formerly known as Thiess Services Limited) v Electricity Networks Corporation t/as Western Power

In the matter of Ventia Utility Services Pty Ltd (ACN 010 725 247) (formerly known as Thiess Services Limited) v Electricity Networks Corporation t/as Western Power, the plaintiff, Ventia, sought a preliminary determination of four specific issues before the trial of the action. The defendant, Western Power, agreed to three of the proposed issues being decided separately, but opposed the separate determination of the fourth issue. Ventia sought that four issues be determined separately and before the trial of the action, primarily due to the hindrance of settlement negotiations by disputes over these issues. The first three issues pertain to entitlement to restitution for payments made to plaintiffs, interest on such restitution, and the appropriate share of costs among the parties. The fourth issue, however, deals with the proper proportion of costs to be borne by each party, given the joint and several liability for costs.

The court examined the legal principles governing the separate determination of issues, focusing on whether it would be just and convenient to do so. The court found that the first three issues were appropriate for separate determination as they were primarily legal questions that did not require factual resolution and could potentially lead to settlement. Question 1, regarding restitution for damages and interest, and Question 2, regarding restitution for expert costs, were both deemed suitable for separate determination as they involved straightforward legal questions. Similarly, Question 3, which addresses the proper proportion of costs to be borne by each party, was found to be a matter of legal interpretation that could benefit from a preliminary determination, although it was subject to further order based on the manner in which it would be addressed.

The court was not persuaded, however, that the fourth issue should be determined separately. Western Power argued that this issue involved complex mixed questions of fact and law, making it inappropriate for preliminary determination. The court agreed, finding that the fourth issue could raise numerous complex matters, including the reasonableness of the settlement terms. Consequently, the court decided that only the first three issues would be determined separately, with the fourth issue left for resolution during the trial. The court emphasized the importance of ensuring that any preliminary determination would indeed be conducive to the fair and efficient resolution of the case.