Amazing we have just completed the latest refresh of the public spot data from Alternative Fuels and Advanced Vehicles Data from DOE and for the record it is now 4603 records.
Wikipedia states there are over 8000 spots but does not break down private/Public.
http://en.wikipedia.org/wiki/Charging_station
From our data.
Amazing growth.
Sept 2012
2293 Level 1 Spots
7817 Level 2 Spots
72 Level 3 Spots
Feb 2012
1786 Level 1 Spots
3016 Level 2 Spots
4 Level 3 Spots
Love to hear if these numbers line up with the industry.
Mark Magliocco