Ameresco, Republic Services Launch RNG Plant at Illinois Landfill

Ameresco Inc. and Republic Services have begun operations at a renewable natural gas (RNG) facility located at Republic Services’ Roxana Landfill in Edwardsville, Illinois.

Roxana Facility

The project, a joint venture between the two companies, processes landfill gas (LFG) into pipeline-quality RNG, reducing greenhouse gas emissions and advancing renewable energy goals.

The Roxana RNG plant, among the largest of its kind in North America, captures LFG that would otherwise be flared and converts it into low-carbon transportation fuel. Designed to handle 6,000 standard cubic feet per minute of raw landfill gas, the facility is estimated to cut carbon dioxide emissions by over 82,000 metric tons annually—equivalent to removing 5,000 passenger vehicles from the road or powering 2,500 homes.

“At Republic Services, our longstanding sustainability goal is to beneficially reuse 50% more biogas at our locations by 2030,” said Tim Oudman, Senior Vice President of Sustainability Innovation at Republic Services. “Through partnerships like this, we are able to reduce greenhouse gas emissions and develop a renewable resource that helps meet energy demands while protecting the environment.”

The RNG produced will be delivered into a nearby Energy Transfer pipeline, displacing fossil fuels and supporting Illinois' renewable energy targets of 40% by 2030 and 100% by 2050.

The Roxana project marks the 14th renewable energy collaboration between Ameresco and Republic Services, with eight more projects in development. It is the first joint venture between the companies.

“Today’s announcement marks a momentous occasion in Ameresco’s 22-year partnership with Republic Services,” said Michael Bakas, President of Renewable Fuels at Ameresco. “This project is part of the circular economy, turning waste into a reliable source of renewable energy that has a tremendous impact on our environment.”

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