[seadan83]

[1] is interesting as an approximation. The source of electricity is really important for EV. If more teslas are in a place with clean energy, it could be even better.

Though, everyone that bought a tesla, they would have bought a gas vehicle instead? I think that is potentially a very invalid assumption which negates that savings calculation. Yes, EVs can be cleaner than conventional cars, but it still adds an impact. Less bad does not necessarily mean all good.

The mentions of teslas charging network sounds very PR heavy. What if that network flops in 5 years and meanwhile the non-common standard means a global charging infrastructure is never properly developed?

Musk's hyperloop was supposed to be built in a few towns that lost money on the deals and pulled funds from other transit projects. Those transit projects never happened.

I don't think anyone can at all decide whether musk, tesla and his companies are yet a net good without the benefit of more time and 20/20 hindsight.