Transgrid v Siemens

Transgrid brought proceedings against Siemens, seeking to set aside an adjudicator’s determination under the Building and Construction Industry Security of Payment Act 1999 (NSW). The adjudicator had made an order that Siemens be paid an amount owed to them, which Transgrid contended was erroneous and that the adjudicator had no jurisdiction to make such an order. The case was heard in the Supreme Court of New South Wales. The central issue before the court was whether the adjudicator had jurisdiction to make the determination in question and, if so, whether Transgrid could be granted relief from the order on discretionary grounds. The court had to consider the scope of the adjudicator’s powers under the Act and the extent to which the adjudicator's decision was reviewable.

The court examined the statutory framework and found that the adjudicator had acted within their jurisdiction under the Security of Payment Act. The court emphasised that adjudicators have broad powers to determine disputes and that their decisions are generally final and binding unless there is a jurisdictional error. However, the court also recognised that relief from an adjudicator’s determination could be granted in exceptional circumstances where justice demands it. In this case, Transgrid argued that the adjudicator had overstepped their authority by effectively acting as a certifier under the construction contract, which was a role reserved for Transgrid. Despite this, the court held that the adjudicator's determination did not constitute a jurisdictional error and that the relief sought by Transgrid was not warranted on the discretionary grounds presented.

Given that the adjudicator's decision was not found to be erroneous and that the court declined to exercise its discretion to set aside the order, the relief sought by Transgrid was refused. The court found that there were no grounds for the order in the nature of certiorari and that the adjudicator had correctly exercised their powers under the Act. The decision underscored the importance of the finality of adjudication processes and the limited circumstances in which judicial intervention is appropriate. As a result, the court dismissed Transgrid’s application and affirmed the adjudicator’s determination.