The
Agenda packet from the 2018-09-20 council meeting (PDF warning) contains the agreement between the city and Tesla with the explicit details on the future site. Summary:
While that makes it sound like 24 superchargers are immediately going to be installed, the agreement is actually structured to have 2 phases. The initial deployment will be 11 stalls (including ADA compliant). And then if and when a certain threshold of usage is met (2000 charging sessions/month) for 3 consecutive months, Tesla is authorized to install, should they so choose, the second phase of 13 stalls (including another ADA compliant). The packet also contains the site plan, a screencap of which I've linked below. Note, the superchargers are going to be installed in the
underground section of the parking structures, with the first phase being the line of stalls which run North to South.