The Vehicle Technologies Office supports work to collect extensive data on light-duty, medium-duty and heavy-duty vehicles through the Advanced Vehicle Testing Activity  (AVTA). Idaho National Laboratory and the National Renewable Energy Laboratory (NREL) test and evaluate medium and heavy-duty fleet vehicles that use hybrid electric, plug-in electric, hydraulic hybrid, and alternative fuel technologies. By comparing these results to conventional vehicles, manufacturers can guide their research and development plans. Looking at data from similar fleets can help fleet managers better understand their options for purchasing and using vehicles.

ApplicationTechnologyManufacturerFleetYears Collected
Delivery TrucksAll ElectricSmith NewtonVarious2012-2014
Class 8 Diesel TractorsHybrid ElectricKenworth and FreightlinerCoca-Cola2011
Long Life Vehicle ConversionsAll-ElectricVariousU.S. Postal Service2010
Shuttle BusHybrid ElectricEatonIdaho National Laboratory2010-2012
Delivery TrucksHybrid ElectricAzure DynamicsFedEx Express2009-2010



This database only offers highlights of the latest data. In addition to these reports, the National Renewable Energy Laboratory (NREL) maintains the Fleet DNA database, which has composite operating data for commercial fleets. NREL's and INL's websites also include all past historical reports on medium and heavy-duty fleet testing.