Valero Jefferson Ethanol Plant
W5289 Valero Way
Johnson Creek, WI 53038-9793
(920) 674-8500, main
(920) 674-8572 fax


​Valero's Jefferson ethanol plant is located near Jefferson, Wisconsin, about halfway between Madison and Milwaukee off of Interstate 94. The biorefinery sits on 344 acres and started ethanol production in January 2008. The facility uses a dry-grind fractionation production method and state-of-the-art technology to maintain industry-leading standards in production, safety, product quality and environmental stewardship. The Jefferson plant annually processes approximately 41 million bushels of corn into approximately 110 million gallons of un-denatured ethanol and approximately 352,000 tons of high-value co-products including distillers grains, bran, germ and CO2. The biorefinery employs approximately 80 full-time personnel.

The entire kernel of corn is processed. Ethanol is an environmentally friendly, high-octane renewable fuel produced by fermenting converted corn starch with yeast. It is used as a blending agent with gasoline. Distillers grains are the co-product left after the ethanol is removed from fermented corn mash, and are sold as a valuable livestock feed. Jefferson’s distillers grains are very high in protein, and contain fat, vitamins and minerals, making an excellent feed supplement for beef and dairy cattle, swine and poultry. The Jefferson plant markets dried distillers grains as well as a bran-plus-syrup mix and corn germ.

The plant timeline:
  • 2003 – Utica Energy started by group of investors including Wisconsin's largest grain dealers and several large farmers, who later started Renew Energy
  • March 2006 – Renew purchased Cargill malting plant at current site and began plans for dry-mill ethanol plant
  • September 2006 – Construction on plant conversion began
  • December 2007 – Conversion to dry-mill ethanol plant completed
  • January 2008 – Startup activities began
  • February 2010 – Valero acquired the plant

 Community Activities

  • Pledged more than $50,000 to the local United Way for 2018, with a company match projected to bring total plant contribution to approximately $76,000
  • Distributed $35,000 to area children’s charities in 2017 from the Valero Texas Open and Benefit for Children, including to Big Brothers Big Sisters of Dodge County Inc. (Watertown Community); Big Brothers Big Sisters of Rock, Walworth & Jefferson Counties; Community Dental Clinic; Family Promise of Western Waukesha County Inc.; Jefferson County Christmas Neighbors Inc.; Lifestriders Inc.; Ready Kids for School; Special Methods in Learning Equine Skills Inc.; Tomorrow's Hope Inc.; and Watertown Family Center Inc.
  • Holds volunteer events throughout the year, logging more than 2,300 total hours annually

To Sell Corn
Todd Ledden
Manager-Grains Procurement
Send Email
(920) 674-8568, or (866) 950-CORN (2676), toll-free

Alicia Koehler
Commodities Assistant
Send Email
(920) 674-8568
(920) 674-8572, fax

To Purchase Feed Products
Jan Mosby
Manager-Feed Products Sales
Send Email
(920) 674-8567

Jennifer Nelson
Feed Product Sales Rep
Send Email
(920) 674-8564