The Roorda Project

About the project

The Roorda renewable natural gas (RNG) project in Paullina, Iowa, will include a single sizeable Continuously-Stirred Tank Reactor (CSTR) digester built on-site at the Roorda Dairy Farm in O’Brien County. The manure from this farm will produce renewable natural gas a year. After the project is complete, the biogas generated by this manure will be captured, cleaned, and converted into RNG, which can be used as transportation fuel, industrial heating, and a host of other applications. Roorda is part of the third tranche of projects developed under the Brightmark RNG Holdings LLC joint venture with Chevron U.S.A. Inc.

Project benefits

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The Roorda project is anticipated to reduce greenhouse gas emissions annually.
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Recovering and processing manure from the farms will prevent excess emissions from escaping into the local air and water.
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The facility will generate renewable natural gas each year and support the production of fertilizer and reclaimed irrigation water.

“As our dairy expands, it’s increasingly vital that we responsibly manage our waste streams while retaining their maximum value. Our anaerobic digestion projects with Chevron and Brightmark do both.”

– Lance Roorda, Owner, Roorda Dairy


In October 2020, Brightmark LLC and Chevron U.S.A. Inc. originally announced the formation of the Brightmark RNG Holdings LLC joint venture to own projects across the United States to produce and market dairy biomethane, a renewable natural gas. Equity investments by each company in the new venture fund construction of infrastructure and commercial operation of dairy biomethane projects in multiple states. Chevron purchases RNG produced from these projects and markets the volumes for use in vehicles operating on compressed natural gas.

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Transform your waste

Brightmark owns and operates over 30 renewable natural gas projects working with 40 farms across the United States, all of which have been launched in the past three years alone, making the company an emerging leader in the rapidly growing RNG industry. If you’d like to partner on a project with us, please fill out this form to get started!
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