Cape Byron Power 1 Pty Ltd v Downer Energy Systems Pty Limited

Cape Byron Power 1 Pty Ltd v Downer Energy Systems Pty Limited involved a dispute between the parties over the recoverability of interest. The plaintiffs, Cape Byron Power 1 Pty Ltd, sought compensation for economic loss they alleged resulted from the defendants', Downer Energy Systems Pty Limited, failure to complete a project. The defendants contested the claim and, among other things, argued that the period for which interest should be awarded should be limited to the period from 14 November 2019 to the date of judgment. The plaintiffs, on the other hand, argued that the period of interest should cover the entire 12 years from when the loss was first suffered to the date of judgment. The court was required to decide whether the plaintiffs' delays in initiating and litigating the claims were unreasonable and whether this warranted a reduction in the period for which interest was awarded.

The court examined the evidence and submissions from both parties. The plaintiffs argued that their delays were not unreasonable, as they had faced difficulties in progressing the matter to trial and had made forensic decisions about proving their economic loss claim. The court accepted that the plaintiffs had attempted to progress the matter with difficulty and did not consider their conduct unreasonable. Regarding the defendants' claim of prejudice due to the unavailability of witnesses and documents, the court found that the plaintiffs had adequately explained the challenges in securing witnesses and documents given the complex and lengthy history of the case. The court was not satisfied that the defendants had suffered significant prejudice due to the plaintiffs' delays. The court determined that the period for which interest should be awarded should be a period of 8 years, between 10 July 2010 and 9 July 2018, and directed the parties to calculate interest according to the applicable Practice Direction rates for the relevant period.