I'm keeping my petrol-powered rides for a while longer.
For me, the whole EV thing is akin to changing to LED lightbulbs to save the planet--pissing against the tide. Sure LED bulbs are a step in the right direction but a wholesale change in land use patterns to require less transportation, change in agriculture techniques and reversing decades of consolidation in manufacturing and distribution is needed.
That said, consider that state of the art coal-fired electric plants are very close to the theoretical limits of carnet-cycle combustion efficiency, something around 68% IIRC. No diesel or gasoline engine comes near even half that. So an EV will produce less carbon even if charged from a coal plant. But--
As previous posts have alluded, the elephant in the room is the electric distribution system, particularly in the US. Politicians haven't listened to the engineers and the results have been wide-spread power outages and fires started from sagging high-tension wires. Merchant generators, with no stake in the distribution grid, could give a rip about such engineering arcana as power factor. All the while the bean counters skimp on maintenance and crypto currency mining and cloud computing load the system for no reason other than to line the pockets of already obscenely rich men. As I said, I'm keeping my petrol-powered and my push bike.
I hope this didn't venture too far into politics; it was intended to be an engineering rant.