Tortoisehead77 wrote: ↑
Thu Jul 25, 2019 8:51 am
If you charge your Leaf in Ohio, does that mean it's really just a coal-powered car?
Generating electriy from coal emits 0.94 kg of CO2 per kWh (https://carbonpositivelife.com/co2-per- ... ectricity/
The burning of gasoline emits 8.9 kg of CO2 per gallon (https://www.eia.gov/environment/emissio ... l_mass.php
), less if there's ethanol in it whose CO2 you don't count, more because there are emissions from the gasoline's production and transportation.
So, if a "coal-powered" Leaf gets 4.0 mi/kWh, that's (0.94 kg/kWh)/(4.0 mi/kWh)=0.23 kg/mi, making the Leaf responsible for emitting as much CO2 as an ICE emits at (8.9 kg/gal)/(0.23 kg/mi)=38 mi/gal.
In the winter, I used to get 35 mi/gal on my Yaris. My Leaf, at 3.5 winter mi/kWh, would be, if charged only with coal-fired electricy, equivalent to 33 mi/gal.
In the summer, I used to get 40 mi/gal on my Yaris. My Leaf, at 5.0 summer mi/kWh, would be, if charged only with coal-fired elecricity, equivalent to 47 mi/gal.
I've heard that the city of Naperville, IL, signed a contract some time ago to purchase solely coal-fired electricity. Just in case that's true, I never recharge in Naperville. My electricity's from Commonwealth Edison, and last I heard, was only about 32% coal-generated.