Renewable Energy Solutions
In Action

Calgren’s renewable energy system brings together proven technologies, agricultural partnerships, and ongoing research to create a closed-loop model for low-carbon innovation. Each process supports the next—transforming local resources into clean energy, reducing emissions, and strengthening California’s rural economy.

The result is a fully integrated network that turns possibility into progress—where ethanol, renewable natural gas, and carbon capture work in tandem to deliver meaningful climate and community benefits.

Calgren’s technologies and partnerships connect across every layer of impact, from core renewable outputs to advancing energy research. This system isn’t theoretical; it’s operating every day in California’s Central Valley, where innovation and agriculture converge to drive real change.

Calgren Sustainability Pillars

Explore our Technologies

Calgren’s integrated system is powered by three interconnected platforms that transform agricultural byproducts into renewable energy and climate solutions.

Low-Carbon Ethanol
& Co-Products

Turning Midwest corn into renewable fuel, feed, and  co-products that drive efficiency and reduce waste.

Renewable Natural Gas
& Co-Products

Capturing methane from local dairies to produce clean, low-carbon fuel, strengthening the agricultural loop.

Tulare Carbon Capture
& Storage Project

Developing next-generation carbon reduction and storage systems that advance California’s climate goals.

Calgren: The Location Of Innovation

Calgren is where breakthroughs in renewable energy begin. We’re not just producing energy — we’re pioneering solutions that shape the future.

From ethanol to biogas and clean CO2, it all starts here. Our central hub in Pixley, CA serves as the foundation for our cutting-edge processes, bringing sustainable practices and advanced technologies together in one place. The site anchors our mission, setting the standard for efficiency, sustainability, and progress in renewable energy.

Our sister ethanol plant in Pratt, Kansas and several Central California dairy farms all work in harmony with our Pixley site to advance our vision. Each location plays a key role in Calgren’s success, from innovation and strategy to execution. Every project — whether in biogas, ethanol, or beyond — draws on the expertise of our knowledgeable team and our spirit of boldness.

As we expand our reach and continue to innovate across multiple sites, our dedication to the Calgren mission remains our compass, and it’s from there that we move ever closer to a future powered by renewable energy.

Welcome to the place where vision begins.

Welcome to the location of innovation.

Welcome to Calgren.

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