Biodiesel production, consumption expected to continue increasing

By Sue Retka Schill | December 09, 2016

Two central questions arise when considering biofuels consumption through 2022, write University of Illinois ag economists Scott Irwin and Darrel Good: “When will domestic consumption of ethanol reach the statutory RFS mandate ceiling of 15 billion gallons and completely eliminate the conventional ethanol mandate gap? Second, what will be the magnitude of the push in the production and consumption of advanced biofuels to the year 2022?”

Good and Irwin published their analysis, “The RFS and Domestic Consumption of Conventional Ethanol and Biomass-Based Diesel to 2022,” in a Dec. 7 FarmDocDaily post.

Consumption of conventional ethanol could reach the statutory mandate of 15 billion gallons sooner than the market anticipates, they concluded, which could result in “substantial downward pressure on D6 RINs.” For advanced biofuels, annual production and consumption of biomass-based diesel is likely to continue to increase, with a wide variance that depends upon cellulosic ethanol.

The analysis builds on a Nov. 30 post that analyzed the impact of the U.S. EPA’s rulemaking for the renewable fuel standard (RFS) and the renewable volume obligations (RVO) for 2017 that were more aggressive than expected. In that post, they examined alternative scenarios should gasoline consumption be higher than the projections used by EPA. “We found that regardless of the assumptions used, the EPA was true to their intention of pushing the conventional ethanol mandate beyond the blend wall,” the economists concluded. In the most recent analysis, the economists extend their projections to 2022, comparing the impact of different growth-rate assumptions.

Irwin and Good also analyzed the relationship between the RVOs for cellulosic biofuels, which have seen substantial write downs from the statutory levels, and the RVOs for advanced biofuels. When the cellulosic RVO is written down, the EPA is authorized to write down the total advanced biofuels mandate, which includes cellulosic, by a similar amount. “For the years 2014 through 2017, the write downs in the total advanced mandates were less than the write downs in the cellulosic mandates. The magnitude of those differences represents the magnitude of the push in production and consumption of advanced biofuels,” they write. The advanced biofuels push for 2017, they calculate, is 520 million gallons, “based on our projections of gasoline and diesel consumption and consumption of undifferentiated ethanol and other nonethanol advanced biofuels.” If the gaps are filled by biomass-based diesel, the implied increase for biodiesel is substantial.

To read the entire analysis, click here.

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