Energy-focused private equity firm First Reserve has invested in Kingfisher Wind.

Kingfisher is a wind power generation project located in Kingfisher and Canadian counties in Oklahoma. The project should be completed in 2015. Terms of the deal were not disclosed.

The project was sold by Apex Clean Energy, a renewable energy company. Apex will serve as the construction manager and asset manager for the project.

First Reserve made the investment through its second energy infrastructure fund, which closed in June with $2.5 billion in commitments. First Reserve, headquartered in Greenwich, Connecticut, plans to invest in pipelines, oil storage and liquid natural gas facilities, contracted power, regulated transmission and contracted energy assets from the fund. First Reserve won Mergers & Acquisitions M&A Mid-Market Private Equity Firm of the Year Award for 2012