Green Car Congress

APRIL 22, 2011

A study by researchers at the University of Texas found that in general, use of plug-in hybrid electric vehicles (PHEVs) can lead to an increase in ozone during nighttime hours (due to decreased scavenging from both vehicles and EGU stacks) and a decrease in ozone during daytime hours.

Ozone 218

Ozone PHEV Texas San Antonio 218

Green Car Congress

APRIL 2, 2009

The study by Nadine Unger, Drew Shindell and James Wang will appear in an upcoming issue of the journal Atmospheric Environment. S1 offers additional improvements to ozone and black carbon air quality whereas S2 implies substantial degradation of sulfate air quality. Unger et al. Click to enlarge. Unger et al. 2009) Click to enlarge.

Climate 150

Climate Emissions Transportation Climate Change 150

Green Car Congress

JUNE 30, 2013

life-cycle study of three Li-ion battery chemistries for plug-in hybrid (PHEV) and battery-electric (BEV) vehicles generated a number of findings and identified opportunities for improving the environmental profile of Li-ion batteries for use in plug-in and electric vehicles. Results by battery chemistry and stage for PHEV batteries.

Li-ion 210

Li-ion PHEV Batteries Battery 210

Green Car Congress

JULY 18, 2010

Researchers at the University of Colorado, Boulder and the National Renewable Energy Laboratory (NREL) modeled the emissions impact had plug-in hybrid electric vehicles (PHEVs) replaced light duty gasoline vehicles in the Denver, Colorado area in summer 2006. Ozone concentration increases were modeled for small areas near central Denver.

Denver 170

Denver Ozone PHEV Colorado 170