The biggest problem that Europe faces is the mass vacations.
During vacation times you can have many 1000's of cars going from
Holland to Italy or Spain. If they all need to charge at the same time
it would take a football field of chargers to do this. The same goes
for German vacation time.
Let's do math!
Assume:
- 150km/h (~93mph)
- 0.25kWh/km (somewhere between efficient vehicles
- 100kW charging
100kW / 0.25 kWh/km = 400km/h
Then you would need:
150km/h-vehicle / 400km/h/charger = 3/8 chargers/vehicle
If you have an exit every 10km on average and chargers at every exit, then you would have
150km/h / 10km/exit /= 15exits/h
Then, worst case (all vehicle energy has to come from on-the-road charging):
3/8 chargers/vehicle / 15 exit/h = 1/40 (chargers/exit)/(vehicle/h)
Then for every 1,000 vehicles/h, with exits every 10 km, you would need 25 chargers/exit.
Do you have any real numbers on long-distance travel density? (It's not just the density on the roads that matters, but the vehicles traveling long enough distances to require the chargers.)
How do you meet the needs?
1) Long-range EVs allow home and destination charging to remove more charging kilometers from the DCFC network.
2) Efficient EVs that reduce charging demand.
3) High charging power to reduce the number of chargers (albeit not reducing the total charging power required).
4) DCFC Charging stations with large numbers of stalls.
5) Destination (including overnight) charging in popular vacation spots.