About

Collgar Wind Farm (Collgar) is wholly owned by the Retail Employees Superannuation Trust (Rest).

Collgar is a $750 million renewable energy project consisting of 111 wind turbines located 25km south east of Merredin in Western Australia. Collgar is the largest wind farm in WA to date.

The project location was selected for its unique topography, world class wind resource, favourable community rapport and proximity to the power grid.

The wind farm is built over a land envelope of 18,000 hectares and has 111 Vestas V90 wind turbines with a total power production capacity of 222 megawatts (MW), generating between 630-750 gigawatt hours (GWh) per year, which is enough to provide electricity to power between 125,000 and 150,000 homes.

The wind farm when first commissioned almost doubled the level of renewable energy in the South West Interconnected System (SWIS) from 5 percent to 9 percent.

Collgar generates and delivers clean, renewable electricity into the SWIS each year, thereby making a major contribution to Western Australia’s greenhouse gas reductions. These reductions are equivalent to taking 150,000 cars off our roads or planting between seven million and nine million trees.