In-Use Fleet Evaluation of Fast-Charge Battery Electric Transit Buses

Robert Prohaska, Kenneth Kelly, Leslie Eudy

Research output: NRELPoster


With support from the U.S. Department of Energy's Vehicle Technologies Office, the National Renewable Energy Laboratory (NREL) conducts real-world performance evaluations of advanced medium- and heavy-duty fleet vehicles. Evaluation results can help vehicle manufacturers fine-tune their designs and assist fleet managers in selecting fuel-efficient, low-emission vehicles that meet their economic and operational goals. In 2015, NREL launched an in-service evaluation of 12 battery electric buses (BEBs) compared to conventional compressed natural gas (CNG) buses operated by Foothill Transit in West Covina, California. The study aims to improve understanding of the overall usage and effectiveness of fast-charge BEBs and associated charging infrastructure in transit operation. To date, NREL researchers have analyzed more than 148,000 km of in-use operational data, including driving and charging events. Foothill Transit purchased the BEBs with grant funding from the Federal Transit Administration's Transit Investments for Greenhouse Gas and Energy Reduction Program.
Original languageAmerican English
StatePublished - 2016

Publication series

NamePresented at the 2016 IEEE Transportation Electrification Conference and Expo (ITEC'16), 27-29 June 2016, Dearborn, Michigan

NREL Publication Number

  • NREL/PO-5400-66555


  • Administration
  • advanced heavy-duty vehicles
  • battery electric bus
  • charging infrastructure
  • energy efficient transit vehicles
  • fast-charge
  • Foothill Transit
  • NREL fleet test and evaluation team
  • Transit Investments for Greenhouse Gas and Energy Reduction Program


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