Economic analysis of the benefits to petroleum refiners for low carbon boosted spark ignition biofuels

•An approach to characterize the value of a biofuel based on its fuel properties is proposed.•Dynamic market conditions & biofuel properties determine the break-even value.•This refinery analysis can be applied to any biofuel in gasoline, diesel, or jet range.•Use of biofuels can accelerate the decarbonization of transportation sector.