Transitional Strategies for Alternative Fuel Supply Infrastructure: Moving from Fuel Flexible to Dedicated Vehicles

Abstract

California`s experience with fuel methanol holds lessons for infrastructure development efforts for other alternative fuels and suggests strategic approaches for developing future infrastructure to serve dedicated vehicles: (1) vehicle/engine capability to utilize dedicated (neat) fuels in a fuel-flexible mode; (2) strategic dispersal, placing stations along primary transportation corridors and in target areas determined by proximity to alternative fuel fleets; (3) massive infrastructure development effort, coupled with the financial depth to persist until fuel throughput reaches economically sustainable levels; (4) strategic concentration, the development of a dense fueling network in delimited areas, allowing the incremental deployment of dedicated fuel vehicles. Some combinations of these strategies will be most effective, requiring the development of alternative fueling infrastructure in concert with vehicle technologies to bring both to market. Fuel flexibility has been proposed as a mechanism to avoid the chick and egg paradox confronting alternative transportation fuels in an established transportation marketplace. Dedicated fuel technologies include fuel cell powered vehicles (FCVs) and methanol ULEVs, which require pure supplies of fuel (e.g., hydrogen, methane and/or methanol). The full advantages afforded by alternative fuels may depend upon dedicated and optimized engines/vehicles. Developers of FCVs have identified M100 as an energy carrier for these next-generation propulsionmore » technologies. A development trajectory leads from today`s M85 fuel flexible ICE vehicles to dedicated M100 ICEs, and ultimately to M100-fueled FCVs.« less