Collgar Wind Farm is located near the town of Merredin, in south-west Western Australia.

Windlab identified the site in 2006 from a WindScape high resolution map of the state, coupled with its Virtual Wind Farm technology. Collgar is a world leading wind farm site located on accessible wheat belt land with uncontested high quality grid access. The project was jointly developed with Investec Bank and achieved financial close in 2010 a little under 4 years since Windlab had identified the opportunity.

Development approval was granted in 2008. Construction commenced in late 2009 and was fully completed by 2011. Keppel Prince, the Victorian manufacturing company supplied the towers for the wind turbines.

It is the largest wind farm in Western Australia, and one of the largest in the country, generating enough electricity to power a small city of 125,000 homes. This results in greenhouse emissions reductions equivalent to taking 160,000 cars off the road every year.