Just found this from NC State Uni. Not able to read full report so not sure how much they factor solar/renewables into their simulations.
"A new study from North Carolina State University indicates that even a sharp increase in the use of electric drive passenger vehicles (EDVs) by 2050 would not significantly reduce emissions of high-profile air pollutants carbon dioxide, sulfur dioxide or nitrogen oxides."
More here: Electric drive vehicles have little impact on US pollutant emissions, study finds
"A new study from North Carolina State University indicates that even a sharp increase in the use of electric drive passenger vehicles (EDVs) by 2050 would not significantly reduce emissions of high-profile air pollutants carbon dioxide, sulfur dioxide or nitrogen oxides."
More here: Electric drive vehicles have little impact on US pollutant emissions, study finds