Great Energy WA was in the business of deploying power generation assets and solutions by rental. Northern Iron operated the Warrego mine site in the Northern Territory and needed equipment to power its mining operations. Their commercial relationship developed over time. There was an initial meeting in October 2022, commercial terms were issued on 21 February 2024, and negotiations followed. Great Energy WA then executed a written Power Generation Rental Contract on 15 May 2024.
Northern Iron did not formally sign that contract. Even so, the evidence showed more than a loose or incomplete negotiation. Northern Iron asked Great Energy WA to re-initial pages over the following seven days, later agreed variations by email, accepted delivery of the equipment and used it at the mine. The Court treated that conduct as acceptance of the agreement. That point mattered because PPSA enforceability often turns on whether there is a security agreement in writing that the grantor has signed or otherwise adopted.