CalBio, Dairy Farmers, and Chevron Announce Their Second California Dairy Biogas RNG Milestone

California Bioenergy

California Bioenergy LLC (CalBio), Chevron U.S.A. Inc., and local dairy farmers announced their joint venture, CalBioGas West Visalia LLC, successfully achieved first renewable natural gas (RNG) production and sales from its dairy farms in Tulare County on October 13, 2020. This milestone follows closely on the heels of the joint venture’s successful launch of their CalBioGas Kern LLC project in August. An additional third large joint venture project is expected to come online in Kings County in early 2021.  These projects underpin the partners’ commitment to providing affordable, reliable, and ever-cleaner energy to California consumers.
Manure storage on dairy farms results in the release of methane, a greenhouse gas. CalBio brings technology and operational experience to help build digesters and methane capture projects to convert this methane to beneficial use as RNG. CalBio, dairy farmers, and Chevron are providing funding for digester projects across three geographic clusters in Tulare, Kern, and Kings counties. As they are completed, these projects will mitigate the dairies’ methane emissions and reduce greenhouse emissions from livestock.
The dairy biomethane projects are designed to send dairy biogas to a centralized processing facility where it is upgraded to RNG and injected into local utility SoCalGas’ pipeline. The RNG is then marketed as an alternative fuel for heavy-duty trucks and buses.

Each of these systems is centered around a geographic cluster of dairies were we can economically harvest the fugitive methane escaping from those dairies, gather it to a central location where it can be purified, injected into the utility gas line, and delivered to fueling stations throughout California for use as a renewable fuel alternative to diesel.

“The project is the result of efforts of a remarkable range of stakeholders, including the California Department of Food and Agriculture and the California Public Utility Commission. CalBio is also honored to be supported by a group of California’s dairy farmers, Farm Credit West and Chevron, California’s largest energy company,” said N. Ross Buckenham, CalBio’s CEO. “These projects bring so many win-wins – they reduce greenhouse gases, reduce fossil fuel use, clean the air, reduce odor, protect water, create jobs, help fund internships at local universities and provide numerous other community benefits”

With other recent Chevron announcements – such as the Adopt-a-Port initiative with Clean Energy Fuels and the Brightmark RNG Holdings LLC joint venture– this milestone further demonstrates the company’s action areas to increase renewables in support of its business and invest in lower-carbon technologies.

“We are excited to see our partnership achieve another milestone as we continue to deliver affordable, reliable, and ever-cleaner energy to California drivers,” said Andy Walz, president, Chevron Americas Products. “Increasing renewables in support of our business is foundational to our energy transition efforts and making targeted investments and establishing partnerships like CalBio LLC strengthens our foothold and reinforces our commitment to leading in the RNG space.”

About California Bioenergy

“CalBio is a leading developer of dairy digesters for generating renewable electricity and vehicle fuel in California. Founded in 2006, CalBio has worked closely with the dairy industry and state agencies to develop programs to help the state achieve its methane reduction goals while delivering a new revenue source to California dairies. For more information, visit:

About Chevron

 “Chevron U.S.A. Inc. is a subsidiary of Chevron Corporation, one of the world’s leading integrated energy companies. Through its subsidiaries that conduct business worldwide, Chevron Corp is involved in virtually every facet of the energy industry. Chevron explores for, produces and transports crude oil and natural gas; refines, markets, and distributes transportation fuels and lubricants; manufactures and sells petrochemicals and additives; generates power, and develops and deploys technologies that enhance business value in every aspect of the company’s operations. Chevron is based in San Ramon, Calif. More information about Chevron is available at

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