There's a long thread discussing this article over in the Environment section: Study: Comparative EV to ICE environmental impactI skimmed through the report and have the following comments to questions mentioned in your report and interpretation of the results:
- So let me get this straight: powering an electric vehicle with the grid average electricity pollutes 80% more than just the tailpipe of an ICE?
Just to clarify, it is necessary to define the subject of this Report. It addresses non-GHG air pollution only:
- what about extracting, refining, and transporting oil, why not include that?
The report does include life cycle analysis that includes total fuel supply chain (non-GHG emissions only). However, some emissions from the fuel life cycle are excluded from the analysis because they occur outside of the spacial model used in the study (US)
- So let me get this straight: they are comparing 2005 pollution (including from gasoline ICEs) to what would supposedly be added by 2020? If Electric cars replace gasoline cars, then why would you add the electric car pollution to the previous gasoline car pollution?
The charts that you are referring to do not add electric car non-GHG pollution to the previous gasoline polution, they show increase in concentration above the baseline attributable to replacement of 10% of year 2020 vehicle use with the given technology, as explained in the text under the chart that you posted- It looks like the major error, IMO, is in interpretation of the results. It seems that you are not considering that virtually all coal power plants are part of the base load portion of the electricity production. Since charging of electrical vehicles is unlikely to add any demand to base load production, the electricity used for this charging will come not from the "EV Coal", and not from the "EV Grid Average", but almost 100% from "EV Natural Gas" and perhaps, to a lesser extent from "EV WWS", as great majority of peak load is covered by natural gas units. A cursory look at "EV Natural Gas" (J) or "EV WWS" (L) shows that their impact on non-GHG pollution is LESS than "Gasoline" (B) or "Gasoline Hybrid" (C)
So my conclusion is that this study is yet again demonstrates that use of pure EVs has non-GHG pollution impact that is LESS than that of vehicles containing ICE.