Complex sentence: The Walkaway Wind Farm, Western Australia's largest renewable energy project, provides 90 megawatts of power into the grid that supplies Perth and the South West, and the wind farm has 54 of the world's largest wind turbines.
Split into simpler sentences: The Walkaway wind farm is Western Australia's largest renewable energy project and provides 90 megawatts of power into the grid that supplies Perth and the south west. The wind farm has 54 of the world's largest wind turbines.