Rotork electric valve actuators have been installed during a modernisation project at a hydro-electric generating plant serving the state of Queensland in North East Australia. Rotork’s Australian subsidiary company at Brisbane supplied 70 AQ range IP68 watertight quarter-turn electric actuators to operate ball valves installed at the Kareeya Hydro on the Tully River as part of a project to automate the hydraulic operating system on the main turbine feeder valves. The Kareeya Hydro plant plays an important role in meeting Queensland’s peak load electricity requirements, whilst its fast response time also contributes to the security of the state’s electricity distribution system. The four 18-MW turbo generating sets each consist of two Pelton turbines and a generator. The plant is operated by Stanwell Corporation, who have used Rotork valve actuators for a number of years on power industry projects throughout Queensland. The AQ actuators for Kareeya were supplied by Rotork to Fluid Controls of Brisbane for attachment to the valves.