Comparison of supply and demand constraints on U.S. biofuel expansion

Geoff M. Morrison, Nathan Parker, Julie Witcover, Lewis M. Fulton, Yu Pei

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This paper compares supply and demand constraints on the ramp-up of biofuels in the United States. Three recent supply-side developments are assessed: (1) build-out of commercial-scale cellulosic biorefineries, (2) incremental improvements to existing ethanol and biodiesel biorefineries, and (3) use of waste oils for renewable diesel and biodiesel. From a technical perspective, we estimate these developments could increase domestic biofuels production by up to 4.3, 2.3, and 1.3 billion gallons of gasoline equivalent (BGGE) by 2030, respectively. This corresponds to 3.7% of final energy in the U.S. transportation sector in 2013. On the demand side, the main technical constraints to biofuel growth involve the blend rate of ethanol with gasoline. Rapid removal of E85 and E15 vehicle and infrastructure barriers could generate room for an additional 13.0BGGE of ethanol and 2.7BGGE of biodiesel consumption by 2030. There is no demand constraint on drop-in biofuels. Both supply and demand constraints limit the expansion of biofuels, but demand constraints can likely be relaxed at a faster pace than supply constraints. Whether the further expansion of biofuels is socially, economically, or environmentally justifiable is not a research question examined here.

Original languageEnglish (US)
Pages (from-to)42-47
Number of pages6
JournalEnergy Strategy Reviews
Volume5
DOIs
StatePublished - Dec 1 2014
Externally publishedYes

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Biofuels
Biodiesel
Ethanol
Gasoline

Keywords

  • Blend wall
  • Cellulosic
  • Drop-ins
  • Energy security

ASJC Scopus subject areas

  • Energy (miscellaneous)

Cite this

Comparison of supply and demand constraints on U.S. biofuel expansion. / Morrison, Geoff M.; Parker, Nathan; Witcover, Julie; Fulton, Lewis M.; Pei, Yu.

In: Energy Strategy Reviews, Vol. 5, 01.12.2014, p. 42-47.

Research output: Contribution to journalArticle

Morrison, Geoff M. ; Parker, Nathan ; Witcover, Julie ; Fulton, Lewis M. ; Pei, Yu. / Comparison of supply and demand constraints on U.S. biofuel expansion. In: Energy Strategy Reviews. 2014 ; Vol. 5. pp. 42-47.
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