Hamilton Lane and GCM Grosvenor have taken a 49.9 % minority interest in Power Sustainable Energy Infrastructure’s Big Sky Wind 240 MW project in Illinois, a fully repowered wind farm that began operation in 2022 with new Vestas turbines. The transaction, announced on April 29 2026, gives the two investors a substantial equity position in a high‑availability asset located in the PJM market.
The deal aligns with Hamilton Lane’s strategy of investing in private‑market renewable infrastructure that generates stable cash flows and supports its evergreen platform and fee‑earning model. Principal Taylor McManus said the acquisition provides a “unique opportunity to invest in an operating wind asset with a strong contractual framework, an attractive risk‑return profile and favorable transaction dynamics.” The partnership also strengthens Hamilton Lane’s relationships with other institutional sponsors, such as GCM Grosvenor, and expands its presence in the U.S. wind sector.
For Power Sustainable Energy Infrastructure, the sale is part of a capital‑recycling strategy that allows the firm to retain majority ownership and continue managing the project while freeing capital for new opportunities. Pierre‑Olivier Perras, Managing Partner at PSEI, noted that the transaction “highlights the quality of the asset and reflects our disciplined approach to active portfolio management and capital recycling, enabling us to reinvest in new opportunities and continue to scale our platform.”
The Big Sky Wind facility sits in the PJM interconnection, a major regional transmission organization that operates the U.S. wholesale electricity market for a large portion of the Midwest. PJM’s growing demand for renewable generation and its backlog of new projects make the asset attractive to investors seeking exposure to a constructive power market. The repowering of the farm in 2022 has increased its output and extended its operational life, reinforcing its status as a high‑availability asset.
Hamilton Lane’s assets under management reached $1.0 trillion as of December 31 2025, while GCM Grosvenor manages approximately $91 billion. The transaction adds a renewable infrastructure asset to Hamilton Lane’s growing portfolio of private‑market investments and positions the firm to capture long‑term, stable cash flows from the asset’s operating lease. The partnership signals a continued focus on high‑quality, cash‑generating renewable projects that fit the firm’s fee‑based, evergreen investment model.
Kevin Pellecchia, Executive Director of Infrastructure Investments at GCM Grosvenor, said the project “is a high‑quality, repowered asset with a strong operating profile and exposure to a constructive U.S. power market. Our investment reflects a focus on accessing established infrastructure assets alongside experienced sponsors, where we see the potential for durable cash flows and long‑term value creation.”
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