GetOffYourGas wrote:Correct me if I'm wrong, but it seems to me that they are ignoring the fact that currently baseload power plants run overnight, regardless of whether the electricity is used. Whether or not an EV is charged, it is emitting CO2 and other pollutants. Instead of counting that pollution against the EV, they should be looking at incremental pollution due to the EV charging. For the current low take-rates, the incremental pollution is zero. zilch. nada. In fact, studies have shown that we could power something like 70% of light-duty passenger vehicles in the US just on the electricity that is wasted overnight.
Combined with the fact that EVs get cleaner as the grid gets cleaner (and we do need to keep cleaning up our grid), I don't think we'll ever be at a point where a LEAF is dirtier than a Prius.
It again depends upon the focus of the study.
You have to remeber they are going off the standard grid.
they are using 2009-2010 grid data.
They do not include any personal electrical generation such as solar panels or purchasing wind credits.
They really can't though, as those are individual decisions. They could report on percentage of EV owners that take such measures.
One of our groups of utility cooperatives just announced that everyone that gets the EV TOU meter and billing will automatically get free wind credits for it. If more companies started doing that you may be able to fold it in to a study like this.