One Campus, Two Hundred Data Centers

✨ How this post came together

This started as a prompt asking how the power draw of a modern AI data center compares to a typical one. That question turned into a rabbit hole: pulling the numbers, building the visualizations below, and editing all of it into this post.

The United States spent three decades building roughly four thousand data centers. The AI buildout is about to match that scale with a handful of sites. Scroll to see the ratio.

Visualization · Scroll to explore

01 · The field

Every data center in America, about 4,000 of them. One dot ≈ 5 megawatts, a typical facility.

02 · One campus

A single gigawatt-class AI campus, like OpenAI's Stargate site in Abilene or xAI's Colossus 2 in Memphis, draws as much power as 200 of them.

03 · Five in 2026

Five gigawatt campuses come online this year. Together they match a quarter of everything built before them.

The field

There are a little over 4,000 data centers in the US today, with a combined capacity north of 50 gigawatts. Most of them are unremarkable by AI standards: enterprise colocation halls, cloud regions, telecom facilities, drawing a few megawatts apiece. Call it 5 MW as a rough median. That's the dot in the visualization above, an illustrative approximation rather than a facility-by-facility count.

That fleet took the better part of thirty years to build. It's the accumulated infrastructure of the entire internet economy: banking, retail, streaming, enterprise software, government systems, all of it.

One campus

A single frontier AI campus now draws as much power as roughly 200 of those facilities combined. OpenAI's Stargate site in Abilene, Texas, built with Oracle, SoftBank, and infrastructure partner Crusoe, is the clearest example: about 0.3 GW operating today, on a path to 1.2 GW as more of its buildings come online. xAI's Colossus 2 in Memphis is moving even faster, already drawing close to 1 GW roughly a year after breaking ground.

Both look more like industrial power projects than conventional data centers. Several of the newest sites pair with on-site natural gas turbines to skip interconnection queues, and most are committing to closed-loop liquid cooling to blunt concerns about water use.

The land alone tells the story. Once its eight buildings are finished in mid-2026, Stargate's Abilene campus will cover about 875 acres, close to the footprint of Central Park. Meta's Hyperion campus in Holly Ridge, Louisiana, is already several times larger.

Footprint, at the same map scale

Central Park

843 acres

Stargate, Abilene

875 acres

Meta Hyperion, Louisiana

3,650 acres

Central Park is drawn to its real footprint. Campus shapes are illustrative.

A traditional server rack draws about 10 kW. The NVIDIA GB200 NVL72 racks filling these campuses draw about 120 kW in the same footprint, over ten times as much. Air cooling can't keep up at that density, which is why every one of these sites is built around direct liquid cooling from the start.

Five in 2026

By Epoch AI's count, five campuses are set to cross the 1 GW threshold this year alone:

Anthropic-Amazon, New Carlisle, Indiana: January 2026
xAI Colossus 2, Memphis, Tennessee: February 2026
Microsoft, Fayetteville, Georgia: March 2026
Meta Prometheus, Ohio: May 2026
OpenAI Stargate, Abilene, Texas: July 2026

Five sites, five gigawatts, roughly a thousand equivalent "typical" data centers worth of load, about a quarter of everything the country built before them, added in a single year.

≈ 5 MW

typical US data center

1 GW

one frontier AI campus

200 : 1

the power ratio

A gigawatt is easiest to picture next to a power plant: one large reactor unit produces about that much. The five 2026 campuses match five reactors' worth of new demand. The entire existing US fleet, built up over thirty years, comes in around fifty.

What it strains

The interconnect matters more than the GPU count. EPRI's most recent modeling puts data centers at 4 to 5 percent of US electricity demand today, headed toward 9 to 17 percent by 2030 on current trajectories. Utilities that used to plan load growth in single-digit percentages a decade ago are now fielding requests for gigawatt-scale single customers, sited wherever land, water rights, and transmission capacity happen to line up. Texas, and increasingly the Ohio Valley and the Southeast, are where the map keeps pointing.

One caveat

The dot count and per-facility wattage here are deliberately approximate, a way to make an abstract capacity number physically legible rather than a facility-by-facility audit. The five 2026 campuses, their dates, and the footprint and rack figures are real and sourced below. The "4,000 dots" backdrop is a stylized read of the broader US fleet, not a registry.

Sources