this post was submitted on 27 Jun 2026
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If anyone’s curious, this is the AWS Tanner Campus. It’s right across the street from the official, marked on the map location for AWS’s us-east-1, and they are all IAD- buildings, so they’re part of what makes up the us-east-1 AWS region. The project was announced as early as 2020.
It consists of four single-story data center buildings spanning nearly 800,000 square feet, which are supported by a massive 192-megawatt electrical substation and backup diesel generators.
As others here have said, this is not an “AI” data center, it’s a data center that runs massive swathes of the internet as we know it. Either way it’s fucked that they’re approved to build this shit right behind peoples houses. They are right across the street from a regional airport, so maybe that areas zoned commercial? It’s definitely a weird area in general. Driving down prince william parkway you’re seeing tons of straight industrial support shit, like metal shops and construction supply stuff and warehouses with performance car shops with dynos and everything, then you just hit houses.
It was probably zoned back when nobody ever thought anyone but the rednecks already out there would live that far outside the beltway, but now commuting from Manassas/Gainesville into DC or somewhere else inside the beltway is normal, and they’re building houses where they never thought they’d be building.
Again though, fuck Amazon and Prince William County for assaulting these people like this.
I was a bit more high-level in the supply chain planning side (more on the long-term supply planning than rack planning), but AWS definitely has different rack types including AI rack types with dense GPU hardware setups. Are they slicing the buildings by rack type or is it heterogeneous with some AI racks + compute racks?
I just meant that they’re just us-east-1 racks, that the facility wasn’t built for AI specifically in the way that most people are probably going to assume given the past couple years. I don’t know what’s in there rack by rack, building by building either. There is a good chance that if you spin up Opus 4.7 in Bedrock it could be in these buildings.