NREL study finds 2nd-generation diesel hybrid delivery vans show significant gains in fuel economy over conventional vans
Green Car Congress
SEPTEMBER 29, 2012
Laboratory and in-use fuel economy results Source: NREL. The US Department of Energy’s (DOE)’s National Renewable Energy Laboratory (NREL) has published a report on an 18-month evaluation of in-service second-generation diesel-electric hybrid delivery vans and found significant fuel economy benefits of the hybrids compared to similar conventional vans. The NREL team evaluated fuel economy during equal 5-month periods from different years.