Re:Mercedes-Benz will electrify its entire car lineup by 2022
by mikeash on Monday September 11, 2017 @01:22PM
(#15220245)
Who said anything about assigning 100% of the cost to cars? You break it down into a per-gallon figure, and use that to assign the cost to cars.
It's the same thing with electrics. You don't assign the entire energy lost in the power grid's wiring to EVs. You assign them the percentage loss on the energy they consume.
To obtain a gallon of gasoline costs a certain amount of energy which implies a certain amount of emissions attributable to that gallon. If you're looking at the entire efficiency of a gasoline car in terms of miles per unit of CO2 emitted, you need to account for that. The same goes for a kilowatt-hour of electricity and accounting for the miles-per-CO2 of an EV.
It's the same thing with electrics. You don't assign the entire energy lost in the power grid's wiring to EVs. You assign them the percentage loss on the energy they consume.
To obtain a gallon of gasoline costs a certain amount of energy which implies a certain amount of emissions attributable to that gallon. If you're looking at the entire efficiency of a gasoline car in terms of miles per unit of CO2 emitted, you need to account for that. The same goes for a kilowatt-hour of electricity and accounting for the miles-per-CO2 of an EV.