Plans for a 3GW offshore wind farm off Western Australia have been unveiled by Danish developer Copenhagen Energy, as the nation’s sector continues to gather momentum.

The Leeuwin Offshore Wind Farm would supply three million homes in the state under proposals lodged with the authorities there for the project in Australian federal waters 130km south of Perth.

The fixed-bottom project would use up to 200 turbines “between 15MW and 25MW” plus substations, according to outline plans for the project, which envisages phased construction over three years from 2026 if permitting is secured,

Copenhagen Energy was set up in 2020 by two...