>It might also be helpful to read up on how electrical storage devices are >affected by changes in temperature.
No kidding - and also consider the fact that in places that get a lot of cold & snow, not only do the batteries themselves have less available power due to chemistry/physics, but users would be putting a LOT more demand on them for defrosting windows, heating the interior, etc.
Without about a 30% increase in battery energy density, I just don't see how the current generation of electrical vehicles would ever work out for families here in the Midwest.
Plus, to actually make the electric vehicles benefit the environment, a lot of new green nuclear power plants would need to be built.
Let me help you clear some misconceptions up.
Let’s compare the relative efficiencies of the same model of vehicle but in ICE, hybrid, and EV.
The F150 comes in all three. For comparison sake I’ll take the mpg and covert to miles / kWh (a gallon of gas has 33.7kwh)
F150 V8 ICE - 20 mpg or .6 miles/kwh
F150 Hybrid - 24 mpg or .71 miles/kwh
F150 Lightning EV - 2 miles / kwh
So the F150 Lightning is 3.37 times more efficient than the V8 and 2.8 times more efficient than the hybrid.
Onto charging
This “OMG how will we ever charge EVs without building huge numbers of new power plants!” is basically just BS.
Follow along
I’ll use Texas’s shitty grid and the fact that Texans tend to drive more than other states. In fact Texans avg 45 miles of driving per day.
EVs run the gambit from ~ 2 miles / kWh to 4+ miles / kWh. Let’s assume an EV fleet lots of SUVs and F150s that averages 3 miles / kWh.
That means your average EV owner needs 15kwh a day to recharge.
Therefore 1 GWH of electricity can charge 67,000 EVs. Let’s see how much power we have available in 2022. To be conservative I’ll use data from the summer when our grid is more stressed.
For the 8 hours from midnight to 8 am demand averages about 43GW while ERCOT commited about 53GW of power. ERCOT generally tries to maintain a minimum of 3.5GW of margin so that leaves us an average of 6.5GW over 8 hours. Or 52GWh
Looking at the time period from 8pm to 11:59pm you can probably get another 8GWH for a total of 60GWh over evening hours.
Thats enough to charge over 4 million EVs or 20% of all cars in Texas
without changing anything about how the grid is run.
To replace 100% of the 20million vehicles in Texas with EVs under the same assumptions would require an average of an extra 12.5GW each hour. Texas’s grid maxes out at around 80GW today, enough to replace all of todays cars with EVs today.
The grid is not the problem.
Finally on your what if it’s cold issue. Take a F150 long range with 320 miles of range. Chop off 40% to keep the battery between 20% and 80%. Then chop off another 20% for cold weather so you’ve only got 40% of the battery. Finally assume your are getting 1.8miles/ kWh because you are driving fast or hauling stuff in the bed.
As long as you can charge at home each day you’d have at least 90-100miles of range 2-3 times the average amount a person drives in a day.
If you can’t charge at home or you have to make cross state 600 mile round trips for trombone repair in the dead of winter then I’d wait for better EVs.