EPA approves efficient producer pathway for Iowa ethanol plant

By Erin Voegele | May 29, 2019

The U.S. EPA recently approved an efficient producer pathway for The Andersons Denison Ethanol LLC, allowing the facility to generate renewable identification numbers (RINs) for non-grandfathered volumes of ethanol. The 65 MMgy plant is located in Denison, Iowa.

Ethanol plants that have approved efficient producer pathways are able to generate RINs for production volumes above those grandfathered under current RFS regulations. When the RFS was established in its current form, the rulemaking grandfathered in the production volume of existing corn ethanol plants. To qualify for compliance with the RFS program, any new production above the grandfathered gallons must meet a 20 percent greenhouse gas (GHG) reduction threshold when compared to the program’s gasoline baseline. The efficient producer pathway petition process is designed to aid ethanol plants in gaining pathway approval for expanded production above those grandfathered volumes.

A pathway approval document published by the EPA indicates the Denison plant achieves a greenhouse gas reduction of 22.7 percent when compared to baseline gasoline. A typical natural-gas fired dry mill ethanol plant that produces 100 percent dry distillers grains achieves a 16.8 percent reduction when compared to the gasoline baseline.