Collgar Wind Farm achieves a GRESB Five-Star rating

Collgar Wind Farm (Collgar), Western Australia’s largest windfarm, has again been awarded a five-star rating by GRESB and has set an industry benchmark in Environmental, Social and Governance (ESG) performance in 2020. Ranked first by GRESB – the leading international organisation assessing and benchmarking the ESG performance of real assets worldwide – Collgar has out-performed all other participating wind power generators across Oceania.

Launched in 2009 GRESB assesses and benchmarks the ESG performance of real assets providing standardised and validated data to capital markets. The Assessments are guided by what investors and the industry consider to be material issues in the sustainability performance or real asset investments, and are aligned with international reporting frameworks.

  • 2020 | Collgar ranked 1st within renewable power: wind power generation, Australia.
  • 2020 | Collgar ranked 1st within renewable power: wind power generation, Oceania.
  • 2020 | Collgar ranked 7th highest amongst wind power generators world-wide including 2nd place on the performance score.

“We’re delighted that Collgar’s operational excellence has been awarded five-star status by GRESB, and that we’ve been recognised for raising sustainability performance across the renewable power generation sector”, said CEO Thomas Scott-Morey.

“We still have areas for improvement and have started to map out gaps for future actions,” he added. “We are passionate about renewable energy and this year’s result demonstrates Collgar’s continued focus on delivering sustainable, long-term value for all our stakeholders.”

“As we continue to grow the business, our ESG values underpin all aspects of our ongoing approach to renewable energy solutions,” he added. “This wonderful result demonstrates the huge amount of work undertaken throughout the year by the whole Collgar team with the support of the Board and owners, Rest.”

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

Rest is one of the largest profit-to-member industry superannuation funds in Australia, with around 1.7 million members and around $54 billion in funds under management (as at 30 June 2020). Rest was established in 1988 and is open to all Australians.

Rest is a signatory to the Principles for Responsible Investment, and a member of the Investor Group on Climate Change, Australian Institute of Superannuation Investors, and the Responsible Investment Association For more information visit