Power Sustainable Energy Infrastructure completed the sale of a 49.9% minority interest in Big Sky Wind, a 240 MW operating wind facility in Illinois, to funds managed by Hamilton Lane and GCM Grosvenor. PSEI will retain majority ownership and continue overseeing operations.

The deal shows a clear shift in U.S. wind asset recycling. Sponsors are using partial stake sales to release capital while keeping control of repowered, cash-yielding assets. Buyers are not chasing early-stage wind risk. They are targeting operating projects with contractual support, proven availability, and repowering upside.

Big Sky Wind fits that profile. The project was fully repowered in 2022, operates in the PJM market, and offers stable cash flows backed by a strong contractual framework. Hamilton Lane highlighted the asset’s risk-return profile, while GCM Grosvenor pointed to its operating quality and exposure to a constructive U.S. power market.

This mirrors the wider North American M&A pattern. Enerdatics noted that wind deal flow contracted sharply in Q3 2025, with activity focused on mature assets backed by long-term PPAs and repowering potential.

Commercially, the signal is important. Institutional capital remains available for wind, but only where execution risk is already removed. For sponsors, minority farm-downs offer a route to fund new development without exiting strategic assets.

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