Google yesterday announced its new Alabama DC and coverage is significant with 198 posts.
Google has been expanding capacity in LATAM, EU, and APAC for years since it has made a land purchase in the US. When you look at the location of the Jackson County Alabama DC in the middle of the cluster of 5 existing facilities I would place bets that Google could build more at this one site than any other. How big? The Alabama site originally had 8 coal fired units. The last one produced 460MW. Times 8 that is almost 4GW of power transmission infrastructure and water to cool down the plant.
The official Google post is here. http://googleblog.blogspot.com/2015/06/a-power-plant-for-internet-our-newest.html
What is not in the Google post are some quotes from Google's Urs Hoelzle and Joe Kava which the NYTimes covered. http://bits.blogs.nytimes.com/2015/06/24/google-to-open-new-data-center-in-alabama/
The Alabama site could be the biggest Google data center location until they buy a bigger one.