United States Department of Transportation
i
Zero Emission Bay Area (ZEBA) Fuel Cell Bus Demonstration Results : Fifth Report
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2016-06-01
[PDF-2.20 MB]
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Abstract:This report presents results of a demonstration of fuel cell electric buses (FCEBs) operating in Oakland, California. Alameda-Contra Costa Transit District (AC Transit) leads the Zero Emission Bay Area (ZEBA) demonstration, which includes 13 advanced-design fuel cell buses and two hydrogen fueling stations. The FCEBs in service at AC Transit are 40-foot, low-floor buses built by Van Hool with a hybrid electric propulsion system that includes a UTC Powerdesigned PC40 fuel cell power system and EnerDel lithium-based energy storage system. The buses began revenue service in May 2010. The ZEBA partners are collaborating with the U.S. Department of Energy (DOE) and DOE’s National Renewable Energy Laboratory (NREL) to evaluate the buses in revenue service. NREL has been evaluating FCEBs under funding from DOE and the U.S. Department of Transportation’s Federal Transit Administration (FTA). NREL uses a standard data-collection and analysis protocol originally developed for DOE heavy-duty vehicle evaluations. NREL has published four previous reports describing operation of these buses. This report presents new and updated results covering data from January 2015 through December 2015. The focus of this evaluation is to compare the performance of the FCEBs to that of conventional technology buses and to track progress over time toward meeting the technical targets set by DOE and FTA. In the commercialization process that begins at technology readiness level (TRL) 1—basic research/concept—and ends at TRL 9—commercial deployment, NREL considers the ZEBA buses to be at TRL 7. At this point of development, the manufacturers’ goals for the demonstration are to verify that the FCEB performance meets the technical targets and identify any issues that need to be resolved. NREL collects data on 10 Gillig conventional diesel buses for a baseline comparison at AC Transit.
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