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Largest wind farm in WA tops 2022 GRESB Renewable Power Sector globally for the second year in a row

Collgar Wind Farm, Western Australia’s largest wind farm, is pleased to announce that it has been named Sector Leader for Renewable Power, and ranked 13th out of 649 global infrastructure participants in GRESB’s 2022 sustainability benchmark assessment. Collgar is proud to be recognised as a leader in ESG management and performance for the second year in a row.

Collgar CEO, Mr Thomas Scott-Morey, commented: “For GRESB to recognise Collgar as a global leader in the field of Renewable Power in 2022 is a significant achievement, and one that reflects the huge amount of work undertaken throughout the year by the whole team with the support of our Board and our shareholder, Rest.”

“Collgar is passionate about renewable energy; and this year’s result demonstrates Collgar’s continued effort to deliver 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.” he added.

Each year, GRESB assesses and benchmarks the ESG performance of assets worldwide, providing clarity and insights to financial markets on complex sustainability topics.

The GRESB Assessments are guided by what investors and the industry consider to be material issues in the sustainability performance of asset investments and are aligned with international reporting frameworks, goals and emerging regulations. The GRESB ESG Benchmark grew this year to cover more than USD 8.6 trillion of assets under management, up from USD 6.4 trillion the year before.

GRESB data is used by hundreds of capital providers and thousands of asset managers to benchmark investments across portfolios and to better understand the opportunities, risks and choices that need to be made as the industry transitions to a more sustainable future.

The GRESB Sector Leader Awards recognises real estate and infrastructure companies, funds and assets that have demonstrated outstanding leadership in sustainability each year. Collgar Wind Farm participated in the Infrastructure Assessment, obtaining Sector Leader Awards in both Renewable Power (Superclass) and Wind Power Generation (Class).

“GRESB Sector Leaders are the top-performing organisations leading the way to a net-zero future and pulling the industry forward. We applaud this year’s Sector Leaders for their commitment, leadership and dedication to ESG and sustainability,” said Sebastien Roussotte, CEO of GRESB.

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

Rest is one of the largest profit-to-member industry superannuation funds in Australia by membership, with over 1.9 million members and around $66 billion in funds under management (as at 30 June 2022). Rest was established in 1988 and is open to all Australians.

Andrew Lill, Chief Investment Officer at Rest, said: “This is fantastic recognition by GRESB for Collgar Wind Farm’s dedication to ESG and sustainability. With Rest’s longstanding objective to achieve a net-zero carbon footprint for the fund by 2050, we’re proud of Collgar’s achievements on behalf of our 1.9 million members, which also supports our ambition to help members reach their personal best retirement outcome.”


GRESB is a mission-driven and industry-led organization providing standardized and validated Environmental, Social, and Governance (ESG) data to financial markets. Established in 2009, GRESB has become the leading ESG benchmark for real estate and infrastructure investments across the world, used by more than 170 institutional and financial investors to inform decision-making. For more information, visit

About Collgar Wind Farm

Western Australia’s largest wind farm, Collgar, consists of 111 wind turbine generators with a gross capacity of 222MW and is located 25km south-east of Merredin. The wind farm 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 removing 210,000 cars from our roads or planting up to nine million trees each year. Collgar Wind Farm produces enough electricity to power around 160,000 Western Australian homes with renewable energy.


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