Two additional wind turbines are to be added to Hydro Tasmania's Huxley Hill wind farm in July, bringing the entire wind plant to an installed capacity of 2.5 MW. This represents a "substantial component" of the island's maximum demand of around 3 MW, says Hydro Tasmania's Andrew Hickman. The company, he adds, has submitted a revised application for development approval as a result of a "minimal change" in location and increased the height of the two Vestas 850 kW turbines from 55 metres to 60 metres. Meanwhile, Hydro Tasmania is conducting a public consultation into plans for its first interstate wind farm before it lodges a formal application for planning consent. It wants to build an 80 MW wind farm at Cathedral Rocks on the Eyre Peninsula as part of its strategic growth plan. "Even though Hydro Tasmania is Australia's largest generator of electricity from renewable resources, our credentials are not yet fully established in the mainland markets," says the company's Geoff Willis. "The wind farm site at Cathedral Rocks is particularly promising and we expect that it will comprise between 30 and 40 wind turbines." The company is negotiating a connection agreement to the electricity grid and environmental studies are being planned.