The 168 megawatt wind farm generates enough power to supply 50,000 homes - equivalent to the residential power needs for Burnie and Devonport.

The $394 million wind farm will prevent the need to release 450,000 tons of carbon dioxide into the air.

Construction on the wind farm started in December 2011.

Hydro Tasmania chairman David Crean said the company's involvement in wind energy generation, with two other wind farms in the North-West, had added considerable value to its generation portfolio.