From what I was told, it is supposed to be in Bloomingdales garage and is supposed to be the largest supercharger in the country. They are expecting to be a total of 40 stalls.
Nope, it's going to be 10 72kW stalls. I started the 40 unit rumor based on information I received about 9-12 months ago. The macro level location was right (Tysons Mall), as was the fact that it's going to be 72kW "urban" chargers, but the quantity and exact location (which lot) was wrong.