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Brightmark RNG Holdings opens Eloy Circularity Center

Brightmark RNG Holdings opens Eloy Circularity Center
A 72-cow rotary milker at Caballero Dairy (photo courtesy Arizona Milk Producers).

In the United States (US), Brightmark RNG Holdings LLC has announced the opening of its Eloy Circularity Center in Eloy, Arizona (AZ), which will produce renewable natural gas (RNG) from dairy manure using anaerobic digestion (AD) technology.

Brightmark RNG Holdings LLC is a joint venture between Chevron U.S.A. Inc., a subsidiary of Chevron Corporation, and Brightmark Fund Holdings LLC, a subsidiary of Brightmark LLC.

The Chevron-Brightmark renewable natural gas (RNG) joint venture operates a nationwide system of RNG projects, capturing methane from dairy operations for beneficial use as pipeline fuel.

Moving to a future energy economy with lower carbon intensity requires ambitious goals, continuous innovation, and pragmatic solutions. Continued development in renewable natural gas projects creates new, lower carbon-intensity solutions for transportation, industry, and customers, said Andy Walz, President of Chevron Americas Products.

Begin operations

The Eloy Circularity Center project brings this innovative renewable fuel technology to the Southwestern US.

This development marks the beginning of a new phase of the organization’s Eloy Circularity Center, which will begin the operation of its lagoon anaerobic digesters at Caballero Dairy, with a 5,200-head herd in the desert city of Eloy.

We are pleased with the adoption of anaerobic digestion by dairy farmers in the Southwest, a region overlooked in the past. The Eloy Circularity Center’s beauty resides in its use of technology based on ambient temperature with the Arizona heat. It presents an excellent opportunity for RNG to be generated in higher amounts, promoting lower-carbon intensity solutions. We are grateful to Chevron and Caballero Dairy for partnering with us on this exciting endeavor, said Bob Powell, Founder and CEO of Brightmark LLC.

Solar heating

Anaerobic digestion is a circular technology that captures animal manure from partner sites and converts it into RNG, fertilizer, and water. These products are then recycled back into agricultural and energy systems for reuse.

The Eloy RNG project is set to bring environmental and economic benefits to the Southwest region. By harnessing solar heating for farm lagoons, it aims to reduce greenhouse gas (GHG) emissions.

This innovative approach promises to not only create jobs but also recycle resources back into agricultural and energy systems, enhancing soil stabilization and nutrient control while also mitigating odors at Caballero Dairy.

After years of preparation for this moment, my family and I are thrilled that the Eloy RNG project will officially be up and running. Partnering with Brightmark RNG Holdings LLC on this project is an excellent way to provide new economic opportunities for Eloy and provide environmental benefits. We believe being a responsible steward of the land is something of value, and I’m proud to play a role in this impactful work, said Craig Caballero, owner of Caballero Dairy.

The Eloy RNG project is the joint venture’s first initiative in the Southwest but it has also delivered RNG from its Larson Project in Florida (FL) and expanded its RNG projects in Michigan (MI).

Brightmark operates a nationwide system of RNG projects that have reduced more than 900,000 tonnes of carbon dioxide equivalents (CO2eq) through anaerobic digestion.

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