In the United States (US), Clean Energy Fuels Corporation (Clean Energy Fuels), one of the largest providers of fossil gas and renewable natural gas (RNG) for the transportation market, has announced it has completed its eighth dairy renewable natural gas (RNG) production facility in Jerome, Idaho – at East Valley Cattle, one of the largest single-site dairies and RNG facilities in North America.
Home to over 35,000 cows, the RNG facility at East Valley Cattle has six anaerobic digesters designed to capture methane from cow manure, preventing harmful emissions from entering the atmosphere.
The facility has begun producing and injecting negative carbon-intensity RNG into the interstate pipeline, which will be used as clean fuel for transportation fleets across the country.
The facility can take in over 5 million gallons of manure each day using a municipality-scale wastewater treatment system and advanced manure separation technology to process and clean the manure.
This unique approach ensures maximum efficiency and sustainability for a dairy of this size before moving to the anaerobic digestion (AD) process, which produces clean, pipeline-quality RNG.
The byproducts are then reused onsite to support farm operations, providing bedding for livestock and crop fertilizer.
This is probably the most ambitious project we’ve taken on – the scale, the technology, and the integration of systems are unmatched and quite frankly, extremely impressive. We’re capturing methane, cleaning it up, and injecting it on-site while replacing natural gas that would have been of fossil origin. It’s a double offset renewable energy, and we are proud to be a part of it, said Will Flanagan, VP of Strategic Development at Clean Energy.
Negative carbon-intensity transportation fuel
In the first quarter of 2026, the East Valley Cattle project recognized its first revenue, and the RNG produced received full approval from the US Environmental Protection Agency (EPA) to begin generating Renewable Identification Numbers (RINs) under the Renewable Fuel Standard (RFS) program and from the California Air Resources Board (CARB) to generate California Low Carbon Fuel Standard (LCFS) credits.
This project has been financed through CE bp Renew Co, Clean Energy’s joint venture with bp.
Agriculture accounts for nearly 10 percent of US greenhouse gas emissions, and the transportation sector accounts for another 28 percent, according to the EPA.
Capturing methane from farm waste lowers these emissions. RNG, produced by that captured methane and used as a transportation fuel, significantly lowers GHG emissions on a lifecycle basis when compared to diesel.
This allows RNG to be one of the only fuels to receive a negative carbon-intensity score based on the reduction of emissions at the source and at the vehicle, and it costs significantly less than diesel at the pump.
