Liquid biofuels—including ethanol, renewable diesel, and sustainable aviation fuel—will be a key part of a low-carbon energy future.

Our mission is to revolutionize biofuel production with hyper-efficient, electrified, energy-recovery systems that dramatically reduce energy usage and carbon intensity while saving facilities money.

Our designs can retrofit existing facilities with minimal disruption to operations, and are already commercially proven in the field, including at Europe’s largest biorefinery (Pannonia Bio).

Commercial History

Versions of our technology, mechanical vapor recompression (MVR), have been widely deployed in single processes, but integrated, comprehensive designs that consider multiple processes are relatively rare.

Our CTO, Lynn Crawford, first deployed an early version of our tech at a corn ethanol plant that he built and operated near Aberdeen, South Dakota, during the late 1970s. With an annual production capacity of 400,000 gallons per year, the plant was one of the larger early dry-mill plants of that era.

EII has been awarded patents for its technology by the USPTO, the EU, and South Africa, with patents pending in many other countries. The patents validate our innovative incorporation of proven process concepts into comprehensive, integrated designs that improve efficiency, save project capital, and mitigate risks.

Today, integrated MVR systems from EII are in operation at Pannonia Bio, with additional plants’ systems under development. The systems' demonstrated flexibility, reliability, and efficiency attest to the technology’s commercial value.


Bill Schafer, PE
Bill’s energy industry journey prior to founding EII included stops with Morrison-Knudsen, TOTAL, IES Utilities, ARCO, Vitol, and NexGen Resources as well as nine startups. A graduate of the Colorado School of Mines and a licensed Professional Engineer, his lifelong fascination with energy and its importance in our lives has driven his career. Bill grew up on a ranch in Colorado where the value of innovation, persistence, and keeping an open mind established lifelong values.
Lynn Crawford
Lynn Crawford’s early life on his parents’ farm near Frederick, South Dakota, gave him an early appreciation for agriculture and the potential benefits of renewable energy. His study of physics and chemistry at the South Dakota School of Mines and graduate study at Montana State University where he taught undergraduate Engineering Thermodynamics, complemented his practical farm experience. The combination resulted in his recognition of the importance of a positive energy balance for biofuels. He designed a plant with an MVR system that began operations in 1982, far in advance of today's mature ethanol industry.
Energy Integration Inc., LLC