Of this 74.2% were battery electric vehicles (BEVs) and 25.8% plug-in hybrid electric vehicles (PHEVs). In the US, the country of analysis for this study, over 325 000 vehicles were sold in 2019. The findings have important implications in terms of future policy and vehicle design including which PHEVs policymakers should incentivize and what measures can encourage PHEV owners to plug-in their vehicles to help realize the environmental benefits of the technology.Įlectric vehicle market entry is progressing with over 2.5 million plug-in electric vehicles (PEVs) being sold globally in 2019. Higher home electricity prices, lower electric driving range, lower electric motor power to vehicle weight ratios, lower potential cost savings from charging, and living in an apartment or condo, among other factors are related to not plugging in a PHEV. Several factors play a role in drivers' decision to plug-in their PHEV or not, including vehicle characteristics and the availability and cost of charging at various locations. Analyzing 30-day charging behavior of 5418 PHEV owners using a logistic regression model, we explore the factors that influence driver's decisions to not charge their vehicle.
If the vehicle is not plugged-in regularly, the vehicle will drive fewer electric miles and more gasoline miles, thereby losing out on potential emission savings. Using data from drivers of the vehicles we show this is not the case and that some drivers rarely charge their PHEV.
It is often wrongly assumed that PHEV drivers plug-in once per day. The environmental benefits of plug-in hybrid electric vehicles (PHEVs) are closely related to the driving and charging behavior of vehicle owners.
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