Private equity firm Green Rock Energy Partners has closed the acquisition of PSA South Hills Landfill Gas Venture, a renewable natural gas (RNG) production facility in Pennsylvania, US.

The acquisition forms part of Green Rock’s efforts to make investments with a focus on energy-producing waste-to-value assets.

Located in South Park Township, Pennsylvania, South Hills produces RNG by upgrading landfill biogas.

The produced RNG will then be sold as renewable compressed natural gas in the vehicular transportation market.

The facility is expected to have a production capacity of more than one million gallons of renewable fuel per year.

To manage the renewable natural gas offtake, Green Rock has partnered with United Green Energy, and other partners.  

Green Rock co-founder and managing partner Cody Myers said: “Green Rock is proud to expand our sustainable infrastructure portfolio.

“We continue to invest in renewable natural gas assets due to their ability to facilitate the transition to a lower-emission future while providing attractive returns.”

For the South Hills transaction, Green Rock was supported by Venture Engineering & Construction (VEC), which supplied technical advisory services during due diligence.

VEC will also provide engineering, consulting and operations, and maintenance services to Green Rock upon completion of the transaction.

Green Rock co-founder and managing partner Martin Mitchell said: “VEC has been an excellent partner to Green Rock as we evaluate opportunities to deploy capital into RNG and other sustainable infrastructure opportunities.

“VEC’s team combines differentiated technical expertise for smaller-scale site development, with the design creativity and implementation flexibility that is critical for project success in this segment of the market.”

Green Rock recently made investments in the energy transition, including in the RNG platform Viridi Energy, and in renewable power and RNG produce Bio Town Biogas.