Maas Energy Works commissions California RNG facility

Maas Energy Works (MEW), a renewable energy company headquartered in Redding, California, has announced the commissioning of a new renewable natural gas (RNG) facility located at Couco Creek Dairy in Turlock, California.

The RNG facility is in collaboration with Pacific Gas and Electric Co. (PG&E), an Oakland, California-based subsidiary of PG&E Corp., featuring its natural gas system.

According to MEW, the Couco Creek hub-style configuration allows two RNG supply pathways to converge. The site produces and conditions RNG from its own onsite dairy digester while also receiving trucked-in RNG from neighboring Blue Sky Dairy of Atwater, California, through a dedicated offloading and decompression facility. This “virtual pipeline” approach enables additional dairies to participate even when direct pipeline access is not available, MEW says.

All RNG delivered onsite undergoes PG&E’s required gas‑quality verification safety checks and metering before entering PG&E’s pipeline system. At full operation, MEW says the facility is expected to inject approximately 350 million British thermal units per day of RNG, with room to expand as additional dairy digester projects qualify for delivery.

“This hub represents the next phase of innovation in California’s dairy RNG sector—flexible infrastructure that helps family farms participate in the clean‑energy economy,” Daryl Maas, founder and CEO of MEW, says. “Couco Creek shows that if we design systems that work for both onsite production and trucked delivery, we unlock more opportunities for dairies and more progress toward the state’s clean-fuel priorities.”

This marks PG&E’s eighth RNG interconnection with an additional seven scheduled by the end of 2027. Since launching its first interconnection site in 2021, PG&E has expanded its RNG footprint across more than 50 dairies, one landfill and one food waste facility.

By the end of 2025, PG&E says it transported approximately 6.5 billion cubic feet of RNG though its pipeline. The Couco Creek RNG project is expected to reduce greenhouse gas emissions by an estimated 54,000 metric tons of CO₂e per year.

“Our collaboration with Maas Energy Works on this innovative interconnection point is an exciting step forward in expanding renewable gas options for our customers and our state,” says Austin Hastings, vice president, gas engineering at PG&E. “Projects like this help us accelerate RNG production, strengthen reliability and move confidently toward PG&E’s 2040 net‑zero climate goals.”