Three thousand solar panels sit unused on a concrete pad after the pioneering Kogan Creek Solar Boost project was shelved due to rusting pipes and "rapidly moving clouds".
Now the site's manager alleges the Commonwealth and Queensland governments breached their contractual requirements by never inspecting the doomed $105 million project.
Run by French nuclear group Areva for Queensland state-owned power utility CS Energy, the project was designed to increase efficiency and reduce carbon emissions at the coal-fired Kogan Creek power station near Chinchilla.
The plan had been to use thousands of mirrors to focus solar energy to pre-heat steam used to drive power-generating turbines. The technology's inventor, Australian scientist Dr David Mills, in 2014 received an Order Of Australia for his work on solar power from the Abbott government.