Tesla has achieved a notable milestone in terms of Supercharger installs in the US: 50.

50

50

That's right.  There are now 50 operational Supercharger sites in the US.

Per Tesla:

"We’re excited to announce our Murdo, SD Supercharger is now open, making a total of 50 in North America!"

"We can’t wait for 2014 as we continue growing the #Supercharger network as quickly as possible!"

How many Superchargers do you think will be online by the end of 2014?  100?  200?

Supercharger #50 in Murdo, South Dakota

Supercharger #50 in Murdo, South Dakota