Imagine if Tesla could maintain that 1-Supercharger-per-day rate indefinitely. Or at least for the next few years.
Per Tesla Motors Europe:
"We’ve passed 70 Superchargers in Europe this week. In the last 7 days we added 7 new Superchargers to the network."
Though all of the fast-charging networks seem to be accelerating the rate of installs, we think this 1-per-day rate is remarkable and not maintainable.
Regardless, props again go to Tesla for showing what's possible.
Europe Supercharger Map - End Of 2015