Ameresco, Inc. a leading cleantech integrator specializing in energy efficiency and renewable energy, Republic Services, Inc. and Pacific Gas and Electric Company (PG&E) (NYSE: PCG), today celebrated the ribbon cutting for California’s largest and most resilient landfill gas (LFG) to renewable natural gas (RNG) plant, located at the Keller Canyon Landfill in Pittsburg, CA.

This first of its kind energy center in the U.S. will be powered by a uniquely designed co-located LFG-to-Electric Plant and will serve as a major milestone in renewable energy production, converting landfill gas into clean, renewable natural gas. Powered by this unique configuration, the Keller Canyon RNG plant will significantly reduce greenhouse gas emissions in the region.

This facility is the first RNG interconnection from a landfill gas project for PG&E and is designed with a capacity to deliver approximately 1 billion cubic feet (BCF) of RNG on an annual basis into the PG&E gas pipeline system, making it the largest operational LFG to RNG plant in California. The Keller Canyon plant exemplifies Ameresco, Republic and PG&E’s commitment to creating and implementing innovative and resilient renewable energy solutions. It also highlights Ameresco’s early move to leverage underutilized technologies like RNG. By utilizing landfill gas, Ameresco continues to provide sustainable solutions to replace traditional fossil fuels and help customers transition to a cleaner energy future.

PG&E is actively supporting these collaborative efforts that support the goal to decarbonize by 2040 to the benefit of customers and everyone in California. In addition to its environmental benefits, the Keller Canyon RNG plant created more than 80 construction jobs and is expected to sustain over 25 operational jobs, contributing to the local economy in Contra Costa County and strengthening the California job market. The plant began commercial operations in July 2024 and is now fully operational, ushering in a resilient new chapter in the utilization of renewable energy in the region.

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